You can find a similar type Constant variable pulley on mopeds. Pretty cheap and easy to purchase.
@paultrainer4560
Жыл бұрын
Does it work? Are the springs in Moped CVT a little to tough for the belts before stretching them? I would LOVE to give this a try.
@flatbrokefrank6482
3 жыл бұрын
An alternative to compound pulley speed control is a 240v to 3 phase delta, these give infinite duty cycle control and start at £150 (257 Canadian). Obviously you will need a three phase motor wired in Delta configuration. I have one on my drill and one on my lathe - you need to ensure the ramp down times are extended for the lathe as I learned the hard way - if your lathe stops dead the inertia of the chuck leads it to unscrew itself and drops onto your foot - Stay safe
@paulbrodie
3 жыл бұрын
That's a good story! I have cam-locks holding on my chuck, so that would never happen to me :) Thanks for watching!
@jasonneedham6734
11 ай бұрын
Electronic, is most probably the cessation of the pulley drive...?
@ianbee456
3 жыл бұрын
So many cool comments! As a thirteen year old in '71, I was infatuated with all things mini-bike. Here in Australia I used to eagerly await for the latest glossy colour magazines to come out from the US. to come all the way to up to Woomera, in South Australia. I would pore over these mags cover to cover, numerous times, and dream of one day, owning my own mini-bike, powered by either a Tecumseh, or Kirby Stationary engine, but... not with your ordinary centrifugal clutch... oh no... I wanted the adjustable torque converter auto clutch, which was revolutionary at the time. Hell, the advertisements mentioned riding up a really steep mountain... Mt. Rushmore, or Everest, or somewhere in America, and it did the job! This was the future... All small boys who were getting sand kicked in their faces on the beach, and who were madly saving up for a Bull Worker, had suddenly changed tack, and were wanting to join the throngs of cool kids, who were sporting these adjustable belt drives on their mini-bikes! Then Yamaha and Honda came in with the Honda Mini Trail 50, and Yamaha DT 60, which now had gearboxes... It was hard being me back then... The angst... Never did get my pulleys...
@paulbrodie
3 жыл бұрын
Yes, unless you were there and at the right age, you have no idea how big the mini-bike craze was. I'm glad I was a part of it :) Thanks for watching!
@Uts9000
2 жыл бұрын
if not already suggested, to eliminate the potential of binding on the non driven side of the pulleys, just make it a pivot point. Granted, the screw side will now be traveling in an arc but that can be remedied with a floating drive nut and pivoting crank bearing. For me, I attached a 3/4 hp 3 phase motor and a VFD running off 120 single phase power. I can adjust the speed from 1 rpm (yes, ONE) to well over 1100 rpm. You might think too slow for small bits but it works perfectly fine. So far I have not stalled the motor, torque is incredible. VFD's are a remarkable piece of equipment, no longer do I shy away from three phase motors
@CraftedChannel
Жыл бұрын
I have an early Dunlap or Craftsman that somebody did exactly that.
@dvddale111
2 жыл бұрын
This split pulley system with movable sheaves via a spring usually is used on many machines, lawn mowers, rotovators, my friend's 750 Massey Ferguson combined harvester and even the DAF motor car of the 1970's.
@thomassmith2239
3 жыл бұрын
I have a 20 year old Craftsman Variable Speed Drill Press that operates the same way with the difference being that the middle pulley is fixed and it has a variable pulley that is spring loaded on both the motor shaft and spindle. You move a lever on the side of the drill press head that moves the middle pulley in or out to change speed. It was their top of the line at the time back when Craftsman still made decent tools. Still works great!
@paulbrodie
3 жыл бұрын
I never knew that, thanks.
@akfarmboy49
3 жыл бұрын
the reason Dave's drill press has sliding tube at a angle is to keep the belt on center as it changes ratio.
@Made_by_profs
2 ай бұрын
Thank you soooo much , i wanted to learn variable distance system and you helped to much.
@paulbrodie
2 ай бұрын
Thank you for watching and commenting...
@douglasrrhine6329
2 жыл бұрын
Your laugh about the company not knowing how many pulleys they made, made me laugh lol
@paulbrodie
2 жыл бұрын
I've been told I have a "dry" sense of humour. I just found that funny! How could you not know how many? Thanks for watching 😉
@Just1GuyMetalworks
2 ай бұрын
Thanks, Paul! 😊 I'll totally be making one of those 😁. Cheers!
@paulbrodie
Ай бұрын
Thank you too! I really do hope you are successful making one!
@ferb7452
3 жыл бұрын
Thank you now I know what I’m doing to my drill press & it’s going on my mill when I finish it🤪🤪😘
@johnyoung7794
3 жыл бұрын
Paul: Thank you for sharing another of your ingenious projects. I have a couple of Machines crying out for variable speed control. Unless a used set of pulleys fall into my hands I will most likely be converting to a DC tread mill motor or VFD 3 phase set up.
@curtbelshe
3 жыл бұрын
Great video. Great comments.
@paulbrodie
3 жыл бұрын
Thanks for watching!
@sambojones8681
3 жыл бұрын
These pullies are available in commercial kitchen mixing machines, for those looking for them perhaps look at commercial equipment repair companies like Hobart.
@dhorne902
3 жыл бұрын
Same pulley system i found on my Logan 8 inch shaper i refurbished . Worked good after a good cleaning and lubrication .
@PosParts
3 жыл бұрын
That is a wonderful setup Mr. Paul. I feel like I could 3D print my own pullies out of acetal (delrin) and achieve the same kind of interlocking variable setup that you have. Its a shame the company stopped production after 70 years though.
@paulbrodie
3 жыл бұрын
If you read through the comments, some viewers have suggested other sources, so it's not really the end of the road, so to speak. Thanks for watching!
@elffirrdesign2063
3 жыл бұрын
Thanks ....great work guys..."quality exists before the subject and object"
@richball9576
3 жыл бұрын
This reminds me of a Reeves drive on very old metal working lathes. I believe it may be old monarchs. You did an amazing job on your drill press Paul.
@paulbrodie
3 жыл бұрын
Thank you Rich.
@andrewstorer4875
10 ай бұрын
I know the Delta 46-700 had a Reeves drive. Jet made one too, and I'm sure there were other manufacturers that did as well.
@rexjenson1119
Жыл бұрын
Power mastic pm2800b, made in China, has infinity speed adjustment. My problem is it has stopped working. Your channel is the only one I’ve found that explains how to take it apart or even likely trouble.
@paulbrodie
Жыл бұрын
Sorry I cannot help you with that issue. We made our unit in 1989 (if my memory serves me...) and the world has changed a bit since then.
@Le_Guigster
3 жыл бұрын
Thanks Paul and Mitch! that's perfect!
@SjwNz08
3 жыл бұрын
I really like your foot switch idea.
@elsdp-4560
3 жыл бұрын
Thank you for sharing. Very nice.
@JohnnieBravo1
3 жыл бұрын
Love your channel and your projects. You have such a smooth voice, and presentation. Kind of reminds me of how calm soothing listening to Mr Rogers was.
@paulbrodie
3 жыл бұрын
That's not the first time Mr. Rogers name has come up!
@bobsadogtoo
3 жыл бұрын
More like the friendly giants little brother.
@KimMoth
3 жыл бұрын
I find Paul flows like cold honey. I like to warm him up a bit by watching at 1.25x .
@petehottois2856
9 ай бұрын
If you need a new variable speed pulley, Speed Selector makes pulleys that replace the Reeves, Hi-Lo, TB Woods and Lovejoy pulleys that went out of business or got bought. Most are in stock or Speed Selector will custom make if needed. They have an actual engineering department; very helpful.
@paulbrodie
9 ай бұрын
Pete, thanks for that info. My pulleys never seem to wear out, so I am good right now...
@johnhorton1516
2 жыл бұрын
This is the holy grail. My ideal Metalwork drill press speed range would be 50rpm to max 600rpm. If it also came with a 'soft' reverse function for tapping purposes I would be in heaven.
@paulbrodie
2 жыл бұрын
John, can't send you to heaven, but the speeds should be close. Thanks for watching!😊
@tomthompson7400
3 жыл бұрын
Its a Daf O Drill .... very seasonal for spring .. Daff used a similar system on a small car the Daf 33 it was a cvt constantly variable transmission .. Daf called their version the Variomatic. But its very clever how they have it all on one hub . a very tidy set up indeed.
@paulbrodie
3 жыл бұрын
I like your sense of humour. Thanks for watching!
@halbritt
3 жыл бұрын
This is neat as hell. That said, a decent VFD is a fair bit cheaper.
@andrewhall2554
3 жыл бұрын
Yes, VFD is cheaper, but this system multiplies torque as speed drops. VFD provides basically constant torque as speed drops. Also, motor can overheat at lower speeds with VFD as cooling fan air flow drops off as motor slows down.
@paulbrodie
3 жыл бұрын
@@andrewhall2554 Thanks Andrew!
@matthewtrujillo3712
3 жыл бұрын
Lol what a small world. Sup heath!
@franciscomelendez3894
3 жыл бұрын
DAF had a car with a similar gearbox.
@ChrisLey
3 жыл бұрын
Thank you for the explanation! I was afraid the video was going to end without an explanation of the compound pulley system.
@paulbrodie
3 жыл бұрын
That was Mitch's idea to take it off and show it moving back and forth on the bench.
@mlb6d9
Жыл бұрын
Very Cool Drill Press! Nicely done
@paulbrodie
Жыл бұрын
Thank you Philo!
@gosolobox
3 жыл бұрын
I added a 3rd set of pulleys to a vintage Atlas drill press last year. The modification really slowed the spindle speed and made it much better for metal working.
@bulletproofpepper2
3 жыл бұрын
i'm into 3d printing and the filament have gotten amazing. filament is the raw form of plastic sting on a 2.2 lbs (1 kilo ) asa plastic is automotive grade. machinist have replacement gears for lathes with PLA. i will give it a try.
@vinodgoel8811
7 ай бұрын
Hello Mr. Paul. Great Video. Very well demonstrated and explained. It will be equally great, if you also upload its animation
@paulbrodie
7 ай бұрын
Vinod, thank you for liking our videos. Animation? We don't do that. Do you mean, how it operates?
@benjo233223
3 жыл бұрын
The angle on the other one stops the belts moving up and down. It would be the same angle as the pulley face.
@maxheadflow
3 жыл бұрын
Very interesting. Notice that the picture of Dave shows the spindle pully on the bottom. Paul's is on the top. Paul's control mechanism would benefit from raising the back. If you look at it as Paul cranks the speed up, the belts change alignment due to the belts shifting on the pulleys. The way the control is bolted to the top of the drill press, it should be pretty easy to do.
@paulbrodie
3 жыл бұрын
Yes, my pulley alignment may be a little compromised, but it's been that way for 30 years and works just fine. Why change now?
@johnbird8605
2 жыл бұрын
That's a really brilliant design, I've been after something like that for ages. Thanks for sharing Paul!
@paulbrodie
2 жыл бұрын
Thanks John.
@jasonneedham6734
11 ай бұрын
Ken brilliant.😊
@BokorRider
3 жыл бұрын
the pulleys seem to work the same way as Hubnuts Invacar...................an 70's 3 wheeler for people who used wheel chairs .. the could drive on the UK roads in them
@uguyssss
3 жыл бұрын
Just finished watching your video,very informative. I have a treadmill the has a pulley like that. Not quite as heavy so might not be good enough. Got my gears rolling so thanks for the inspiration!
@markhedquist9597
Жыл бұрын
I picked up an old treadmill from an estate sale for free. They just wanted it gone. When I tore it apart for useable parts, I found the same pulley system. It's sitting in a box in the garage. Was just waiting for the right inspiration to use it!
@stevecarlisle3323
2 жыл бұрын
Food for thought, where have I seen those. Spanish milling machine, snow mobiles and ride em lawnmowers.
@noneofabove5586
3 жыл бұрын
I purchased a part from a lawn tractor that is very similar. The main difference is it uses a wider belt.
@paulbrodie
3 жыл бұрын
I hope it works for you.
@leslieaustin151
3 жыл бұрын
That was most interesting. A very clever pulley set, and a very clever adaptation of it. Thank you. Les in UK
@paulbrodie
3 жыл бұрын
Thanks for watching. I lived in Southampton for 7 years.
@leslieaustin151
3 жыл бұрын
@@paulbrodie i think you can hear it in your accent! Thanks again. Les
@Mad-Duk_Machine_Werkes
3 жыл бұрын
MTD lawn tractors (sold by Montgomery Wards for 50+ years and still available today) - had the SAME variable speed stacked double pulley and I bet you can get them cheaply BRAND NEW -the center is needle bearings and not plastic- check it out for yourself (I was an In-Home repair Tech on Lawn and Garden, repairing Monkey-Wards mowers for over a decade) you could make the exact thing with a double stacked variable speed drive pulley from one of those mowers-
@elbowdonkey
3 жыл бұрын
Looking at the MTD pulleys, they're not quite the same. The ones in Paul's video can "nest" into each other, allowing for a larger diameter in less "stacked" space, I'd guess.
@user-ef8rj1lc6w
4 ай бұрын
Paul... Those are called Reeves Drives and the Dutch Dap had them, I think, in 1966...If you want to experiment cheaply, go to a lawnmower junkyard and look up an old lawn tractor made by Modern Tool And Die with a CVT transmission. I had a MTD 42" cut for 8 years with that and mowed 6 acres with absolutely no problems. I liked it so well, I bought another one which I still have. MTD made John Deeres, Cub Cadets, Sears, Monkey Ward, and many more. I'm 91 years old, so I'm not so fast on my feet, but I'm still thinking. Chuck Hoyt- Hell On Wheels
@jasondk5127
3 жыл бұрын
Thanks so much for sharing! I'm already designing my own set.
@jim2mars
2 жыл бұрын
There a set of variable speed pulleys in the ShopSmith power head. Plus many other parts you could use !!
@alanmony1582
3 жыл бұрын
Hi Paul, my name is Alan, I'm a friend of Ross's. I think you'll know who I mean. Love the channel as I was building gas brazed bikes back in the 80's but without the success you achieved, sadly. When I was messin' with motorcycles back in the 60's we called those single cylinder Harley's "Benelli's". They're originally made in Italy. Made in Cheena now, big surprise!
@paulbrodie
3 жыл бұрын
Hi Alan, I think I know which Ross you are referring to! With Harley making the big V-twins known as "Hogs", the Aermacchis were sometimes referred to as "Piglets" which is not very flattering. Benelli also had their own horizontal singles, but I have not heard an Aermacchi referred to as a Benelli. Thanks for watching!
@adrianrobinson1336
3 жыл бұрын
i own two drill presses, a Taiwanese 1hp 2mt hafco bd20 that's great for everyday use and the second one is a toolroom drill press, it's an Australian made 1.5hp 3mt Waldown 3m-2, it was made in the 60's and it's a beast, im looking for big 3mt drill bits atm.
@markfoggy9933
3 жыл бұрын
They are running pulleys that run a V belt that is driven by a 2 piece pulley at one end where the 2 cones change the diameter. Millions of wheel sizes and v belts available.
@Cerv3ra
3 жыл бұрын
Love your work Paul and Mitch.
@bradleynealdaley
3 жыл бұрын
you should be able to machine up a spindle tube to take some needle roller bearings and 3D print those pulleys. If the pulley's don't hold up as a print, you should be able to print some molds and then cast the pulley's out using an engineering urethane (try Reynolds or SmoothOn [same company] ) Brilliantly simple design. Should be easy to duplicate.
@paulbrodie
3 жыл бұрын
Just remember that the spindle needs to be hardened..
@bradleynealdaley
3 жыл бұрын
@@paulbrodie very true. Thankfully its easy enough to get a hardened rotary shaft from McMaster or Misumi!
@1crazypj
3 жыл бұрын
Hadn't watched vid previously, thought it was just another VFD and DC motor conversion. Very interesting, basically 4 sheaves with manual adjustment instead of bob-weights and springs as in a CVT. With a bit of research and ingenuity, I think few old ATV parts could be converted particularly as it seems somewhat similar to 1900's motorcycle technology (completely forget name of variable adjuster at present but belt drive era). Still won't be cheap but probably substantially less then commercial set. ($500 is so far out of my price range it isn't even funny)
@paulbrodie
3 жыл бұрын
Yes it is pricey but still working great 31 years later. Good value!
@meatball1974
2 жыл бұрын
Fantastic information and great history! Princess Auto has a complete floor standing drill press with 5/8 chuck and a Variable speed - very much like these ones - the belts look more like small snow mobile belts though. In your truck for ~$800.
@paulbrodie
2 жыл бұрын
Price sounds reasonable.
@JW-jc5ti
Жыл бұрын
Riding mower variante speed pully like a husky was thinking of using one to do this when I found this video
@paulbrodie
Жыл бұрын
Thanks for finding our videos! 😉
@ricvis44
3 жыл бұрын
Paul, that pulley system is a lot like the John Deere Variator used on the old John Deere lawn tractors. As long as they are clean and lubed occasionally they are much better then a VFD.
@rolandturner657
3 жыл бұрын
Interesting that you mentioned John Deere- this system reminded me of a mechanism on an old JD combine harvester that adjusted the drum speed. Pretty simple but works well!
@jeremyclark2447
3 жыл бұрын
Immediately started searching the internet trying to find a set of pulleys.
@paulbrodie
3 жыл бұрын
I like your style :)
@anthonyGbachiller
3 жыл бұрын
Any luck?
@sirnearlyheadlesnick
3 жыл бұрын
Thanks Paul- this is great My late father a "Electrician" by trade converted his Multi pulley drill press is a similar yet different means through a VSD with foot peddle to control, yet one would still need to manually set the correct belt and pulley configuration on the the head gear It has 3 different belt and pulley length setups. Just discovered your Channel looking to get into some frame building of sorts... Would like to take the time to thank you for your supper informative Videos they absolutely rock ✌🏽
@paulbrodie
3 жыл бұрын
Nicholas, thanks for watching!
@sirnearlyheadlesnick
3 жыл бұрын
@@paulbrodie Than you Sir for sharing your wealth of Knowledge & Expertise with all us Apprentices out in the world 🤝
@paulbrodie
3 жыл бұрын
@@sirnearlyheadlesnick My pleasure you are most welcome :)
@G58
3 жыл бұрын
Huge apologies Paul, will need to watch the whole video again because I couldn’t concentrate due to being distracted by the finer scenes of the concluding episode of Tipping The Velvet on the Tell Lie Vision...!😎😜 Anyway, it occurs to me that those automatic scooters have variable belt driven ‘gearboxes’. I wonder how they work, and could they be adapted for a drill press? How easy would it be to rig up a spindle speed indicator? Thank you for sharing this innovative conversion. You know we all want one. As always we leave your shop inspired.
@paulbrodie
3 жыл бұрын
I'm not sure what you're apologizing for... No worries. There are probably several variable speed pulley systems that could be adapted to work on a drill press. Some, better than others. Thanks for watching!
@recyclebills
2 жыл бұрын
I've found these CVT pullys on old treadmill exercise machines, now I know what I can use them for.
@paulbrodie
2 жыл бұрын
You have a project!
@recyclebills
2 жыл бұрын
@@paulbrodie Now I just have to remember where I put them.
@d1986ben
3 жыл бұрын
Love that you showed off your rig. I have a Powermatic 1200VS (variable speed). If I didn't have that I would simply purchase a 3 phase motor (us AC power) with a Variable frequency drive for the variable speed. That being said I love the old school approach; reminds me of a reeves pulley drive on my wood lathe. Cheers and thanks for sharing!
@paulbrodie
3 жыл бұрын
Benjamin, thanks for watching!
@morganwheeler7417
2 жыл бұрын
@benjamin denk i think you're powermatic vs has the same system inside of it!
@d1986ben
2 жыл бұрын
@@morganwheeler7417 correct my 1200 has a reeves drive but slightly different. They all have variations but the same concept. Thanks for the reply! Cheers.
@rok1475
2 жыл бұрын
If you are on a budget a DC motor with speed controller from a salvaged threadmill is a decent solution. I converted my mill that way and it works quite well. The controller from the threadmill compensates for variation in load so that’s nice bonus feature.
@paulbrodie
2 жыл бұрын
Sounds good, thanks.
@user-fx7nq6jq7x
11 ай бұрын
Speed Selector makes variable speed pulleys that replace the Reeves and Hi-Lo pulleys. I think they went out of business. A lot of them are in stock or they can make a custom if needed. They have an actual engineer to help you if needed. Very helpful.
@tombier9170
3 жыл бұрын
Bridgeport & similar milling machines with variable speed use a Reeves Vari-Speed pulley system. There's one spring loaded conical pulley on the motor and the spindle pulley has the distance between cones controlled by a crank and a yoke on one piece. I think the range is only about 5:1 or 6:1 though.
@jamest.5001
2 жыл бұрын
It's like a scooter variator you could probably use one to make these, by putting both pulleys of the cvt/variator in a single shaft!
@amok42
2 жыл бұрын
That was such a great vid I bought a t-shirt.
@paulbrodie
2 жыл бұрын
Thank you.
@heyimamaker
3 жыл бұрын
I managed to get a McMaster catalog last year. It's very cool and fun to look through. I had placed an order with them and unfortunately It's very hard to get them to ship to individuals in Canada. Much like your self, I placed my order 4 times and eventually they shipped what I wanted after I used my personal email through my domain, and included my website so It seemed like I was a company rather than a person.
@836dmar
3 жыл бұрын
Was hoping you would talk about that variable speed. Thank you!
@dallyjacobson2146
3 жыл бұрын
Hi Paul, the vari drive on early model grain harvesters ( International, John deere, massey etc) had the same concept for ground speed.
@bradgotschall3259
3 жыл бұрын
Nice modification😊. Mechanical variable speed is a great way to keep torque at all desired speeds that a VFD usually can’t. One could fabricate this same unit with two variable pitch v-belt sheaves mounted atop each other and modified to allow the moveable pieces to slide rather that thread together and on a common shaft or sleeve between both units. McMaster Carr carries these and they’re common in power transmission. Check out Burden’s Surplus in Nebraska for another possibility. I’ve been thinking of this same mod for an old press I have with a 4 step jack shaft.
@paulbrodie
3 жыл бұрын
Yes, there is usually more than one way to achieve the same end result. Thanks for watching!
@AfricaTwin-Stuff
2 жыл бұрын
I’m in Oz. For an extra $50 on the base model “Wild Boar” I bought a variable speed (CVT) unit at Bunnings warehouse. Love the ease of varying speed.
@paulbrodie
2 жыл бұрын
Yes, variable speed is good. I would never want to be swapping belts and pulleys again.
@donsipes
3 жыл бұрын
FYI. My go to place in Calgary for fasteners and hardware is Blackfoot Industrial Supply and they do stock some Acme threaded rod and matching nuts. Not sure about all sizes but they did have what I needed back when!
@rcjbvermilion
2 жыл бұрын
I think I've seen similar acme threaded rod at the Bolt Supply Warehouse here in Lethbridge.
@millomweb
3 жыл бұрын
14:29 Re spindle extension - did you not look at mounting the motor higher so the top variable belt goes to the motor and the bottom one to the spindle ?The slope on Dave's is to keep the belts aligned.
@paulbrodie
3 жыл бұрын
Well, you have to remember this all happened 30 years ago, so my memory is vague. I had help designing it from my friend Dean Chalmers, who was an engineering student at that time. There must have been a reason why we did it like we did. It has worked flawlessly for those 30 years, so we must have done something right :) Thanks for watching!
@millomweb
3 жыл бұрын
@@paulbrodie Vehicles have used these variable speed pulley systems but I've not yet seen a two stage version to give a greater overall ratio range. It's given me ideas though :)
@t2t
3 жыл бұрын
Love your working Dad, i like the way you sharing a second witching for safe. I always wonder like that. Now i learned more trick. Thank you 👍👌✌😃. Srr if i think you re my Dad hihi because i miss my father like you. He passed to the heaven. 😂
@paulbrodie
3 жыл бұрын
Sorry to hear your Father has passed on. Thanks for watching!
@richard-sim
3 жыл бұрын
McMaster-Carr had flip-flopped back and forth on the whole Canadian shipping thing a number of times, but seem to have settled on shipping not being a problem finally. I can't remember how long ago that change was (finally!) made, but it was at least 3-5 years ago now. So go forth and order all the cool hard-to-find parts you need!
@paulbrodie
3 жыл бұрын
For me, they weren't even shipping to Canada; I was using a US address at the US Border. Once they found out I was Canadian, they wouldn't even do that. I was a little upset.
@jonfeuerborn5859
2 жыл бұрын
Well, color me inspired, Paul! Thanks for sharing this. I just did a little looking around on the web at various lawn mower and go kart variable speed pulley sets, then hit the jackpot on ebay. I found a used Cleveland Speed Selector for $100. Can't wait to get it and figure out how to mount it to the old drill press.
@paulbrodie
2 жыл бұрын
Thanks Jon. That's great you are updating your drill press!
@jonfeuerborn5859
2 жыл бұрын
@@paulbrodie You betcha. Got a couple projects I anticipate putting it to use on in the near future, one of which you would certainly find interesting. I'm going to be restoring a 1976 Yamaha RD400 for one of my brothers (we have 5 RD400s in total between us four brothers, two of which are 1979 Daytona Specials).
@paulbrodie
2 жыл бұрын
@@jonfeuerborn5859 In 1973 I owned a Yamaha R5 350, drum brake, 5 speed. I put 8000 miles on in 6 months. That was a lot of fun. Obviously, your specialty is RD400 :)
@jonfeuerborn5859
2 жыл бұрын
@@paulbrodie That is very cool. My dad used to drag race an RD400. He and my uncle loved the things, and all us boys were hooked as well. I did a pretty thorough job on my Daytona last year. Upgraded to electronic ignition and a higher capacity stator, new pistons & rings, and tons of other maintenance items. Runs like a top.
@ericmuehlstein2238
3 жыл бұрын
Fantastic videos! There's a little bit of a New Yankee Metalshop vibe happening here.
@MrJohnnaz
3 жыл бұрын
Cheaper/better just to buy an old Rockwell DP with variable speed. They use the same system and it works fairly well. I think Powermatic used the same system as well. Google Reeves drives, I think they still make all sorts of variable speed pulleys and drives.
@paulbrodie
3 жыл бұрын
I'm sure glad I got mine! Thanks for watching :)
@michaeljames9671
3 жыл бұрын
Ebay is fairly awash in vs pulleys. I had a lathe with such a setup and have a bandsaw with it. Reeves drive is one of the names for it andBrowning dabbled in it as well I believe (in addition to bicycle 'transmissions').. variable speed transmissions in snowmobiles and newer cars have same idea. Time marches on ... VFD's are the new iteration.
@triathloner1
3 жыл бұрын
Great video love the old technology, I'm sure they went out of business because you can buy a cheap VFD for any drill press for like $100 usd.
@jasondk5127
3 жыл бұрын
You can get higher torque at lower speeds with this setup.
@Kosmonooit
3 жыл бұрын
You generally need a 3 phase motor for a VFD
@nunosantiago2273
3 жыл бұрын
Beautiful. I would however just fit a largish , about three hp ,three phase motor for torque driven by a cheap VFD. I'd much rather have the elegance of your system though.
@paulbrodie
3 жыл бұрын
Three HP motor is HUGE for a drill press. My was 1/2 HP but I upped it to 3/4 HP. Thanks for liking the elegance of my system.
@edwardclark3980
3 жыл бұрын
Good I want one
@mikey7278
3 жыл бұрын
One of your bikes won bike of the month on Retrobike recently
@paulbrodie
3 жыл бұрын
Thanks, they didn't even tell me!
@mikey7278
3 жыл бұрын
@@paulbrodie I tried to post a link here but YT wont let me. It was a red Brodie Catalyst.
@paulbrodie
3 жыл бұрын
@@mikey7278 Someone else sent me that link on IG. Nice bike!
@petepure3387
3 жыл бұрын
Some years ago I saw a video on a car transmission that used a similar principle. Interestingly the belts on that transmission were rubber but had segmented steel rings around the belt so the belt pushed instead of pulled. I hope that makes sense. Search "infinitely variable car transmission" on Google... Thanks again Paul and Mitch.
@rogeriocosta1035
3 жыл бұрын
Maybe a set of pulleys from a CVT scooter transmission will work.
@paulbrodie
3 жыл бұрын
It's possible I do not know...
@tomwagemans1872
3 жыл бұрын
I was thinking the same thing.
@dereketheridge133
3 жыл бұрын
Internally that's how the pre-DC speed controlled shopsmiths worked, so if people are looking for parts a pulley set from a broken shopsmith should be a good start.
@dereketheridge133
3 жыл бұрын
Woops, I'm a bit off with that, the shopsmith does it in two stages but with a lathe you might be able to mod the Sheave's
@TY1979KA
3 жыл бұрын
I enjoyed it
@bradleynealdaley
3 жыл бұрын
my understanding was that mcmaster now sells into Canada. Perhaps not with covid going on at the moment, but they were within the last few years (after a while of not)
@paulbrodie
3 жыл бұрын
That might be so, I just haven't checked lately.
@claudearmstrong9232
3 жыл бұрын
Hmmm.... In the 70s I was the maint. guy for a large agronomy supply concern and needed a good drill press for the shop. Searching I discovered one that had this same double sheave variable pitch pulley and it was a blessing! Now I'm retired and designing a wood lathe made with hardwoods. Looking into variable speed designs I wanted to find the same double sheave pulley but no matter how much i look only the one you list as making this exists. That's crazy! One would think that with all the tech advances there would be competing manufacturers... But, with the political and union sell out of manufacturing to cheesy China crap, I easily see what happened, plus, people are so ignorant of how motors work and burn up at slow RPM the profit is with variable freq. controllers and 3 phase motors that burn out after some use! Well, I also wanted to have great lathe spindle torque at low RPM, and low cost as possible. VFC motors have two strikes against them in that department. The cheaper ones lose both cooling and torque at low RPM, and the very expensive ones lose vital cooling at low RPM, frying them if turning large objects for long, unless they have aux. cooling. Back to the mechanical RPM reduction and it's either multi-sheave pulleys or . . .? I discovered spring loaded variable pitch sheaves, and was hoping to find a video using two of these, either on a jack shaft, like this setup, or some combination on motor and driven shafts, or even combined on drive, driven and jack shaft. My application requires very compact space, limiting my design further. I'm no good at video, so I would share a solution if . . . . but . . . . On a side note, I dabbled in bicycle assembly by buying a cargo frame and specing the wheel and drive train. A Peterson two speed crank driving a Nuvinci CVT N360 makes for a very nice setup. Not wanting to repair flats driving a fully loaded bike, I went with puncture proof liner and tubes in puncture proof tires!:-)) The wheal build was quite fun, too. I used a down hill front hub for durability. 8" Disk brakes. My build ended with trying to machine stainless steel plates which I designed to mount the brake calipers on for floating them, as stopping that weight is hard on pads. My limited machine experience . . . . BTW. I was disappointed that the Nuvinci can't handle the load and heat of turning all but the smallest wood ....
@paulbrodie
3 жыл бұрын
Claude, you seem to be facing a conundrum of sorts. I hope you find a suitable solution, and thanks for watching our channel.
@claudearmstrong9232
3 жыл бұрын
@@paulbrodie Thank you. One item I might note for you, Paul. The WD-40 has bee's Wax. In time it hardens and causes lock up. I learned this the hard way with outdoor locks. The plastic sheaves pose a challenge to lube, but a non-petrol lube with silicone or dry lock lube may resolve it. On metal parts I like the chain lube and LPS petrol lubes in a pressure can. Industrial maint. employment taught me lots!
@paulbrodie
3 жыл бұрын
@@claudearmstrong9232 You are not the first to mention that WD40 isn't best for lubricating the sheaves. I will use something more suitable. Thanks!
@1duesy
Жыл бұрын
You went to a lot of effort to build what is readily available in the form of Variable Frequency Drives (VFD) and electronic AC speed controls, not to mention Reeves drives found in older Rockwell drill presses.
@paulbrodie
Жыл бұрын
Well, I built this back in about 1988 / 1989, so were those things you mentioned available back then? I have no idea...Maybe you can tell me?
@vanguardcycle
3 жыл бұрын
Me: in the weeds on a big tube fabrication job Paul Brodie: here's a new video about a tool that I built Me: calls customer to apologize for the delay 😁😑
@paulbrodie
3 жыл бұрын
Is that what really happened? Thanks for watching!
@KimMoth
3 жыл бұрын
PMSL
@joelfraser405
Жыл бұрын
MTD lawn tractor uses similar pulley. I believe cost is currently around 100 dollars new. Could scavenge from old unit.
@paulbrodie
Жыл бұрын
Great Idea!
@cbpuzzle
3 жыл бұрын
I have a cheapy WEN drill press with a variable pulley system for $97 on a Black Friday special.
@paulbrodie
3 жыл бұрын
Thank God for Black Friday.
@leslienixon9274
3 жыл бұрын
Comet makes a system that uses a pulley very similar. Used on gocarts and mini bikes everywhere, readily available and cheap!
@paulbrodie
3 жыл бұрын
I will check it out, thanks!
@leslienixon9274
3 жыл бұрын
@Airfab 01 Don't take my word for it, have a look for yourself. The spring loaded driven pulley would be able to open and close regulated by the spring compression instead of the angled ramps that would be machined off.
@dorancoonse4189
2 жыл бұрын
You can also find variable speed pulleys on the drives for riding lawn mowers MTD, Tory Build
@danielminskey
3 жыл бұрын
what a great video...beautiful builld as usual... if you ever need anything from mcmaster...ill snag it for you and ship it up to you.
@paulbrodie
3 жыл бұрын
Thanks, will do!
@cobralyoner
3 жыл бұрын
im intrigued. I have a nice big drillpress where changing the pulleys is so annoying to me. I may start looking i to modding it this way. Thx for the research work you did too (:
@paulbrodie
3 жыл бұрын
Yes, changing belts on pulleys was something I didn't like much at all. If you're intrigued that is a great start. Everybody needs a project from time to time :)
@eddiedolendo
3 жыл бұрын
Thanks for this video Paul. As always, its inspiring. I'll try to make a system of my own. Hopefully some pulleys are out there or perhaps I can design some of my own.
@paulbrodie
3 жыл бұрын
If you look through the comments, many viewers have suggested using existing systems that are already out there being used on other applications. Finding a good, used, suitable pulley system might be your best "bang for the buck". Good luck!
@davesalter4928
3 жыл бұрын
The same principal variable speed transmission.
@rgetso
3 жыл бұрын
Is this the same mechanism inside a variable speed knee mill (Bridgeport) head? Words to live by: "You don't have to make it fancy to make it work." Make it work, then make it fancy.
@paulbrodie
3 жыл бұрын
I don't know. I've never had my mill apart.
@ronwhittaker6317
2 жыл бұрын
hi-lo is still around i just found my feed and speed solution to my homemade lathe think to you bubby been mulling that over for years when I get my shed ship-shape and that will be soon/ no more excuses. and the "gear" box just got a lot more compact and I need all the space I can use / my shed is not very big. time to get to work making.
@paulbrodie
2 жыл бұрын
Right on. I think your projects are calling you.
@franciscomelendez3894
3 жыл бұрын
Some cars like DAF, had similar arangement for their gearboxes.
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