You did a great job explaining the limitations of the upgrade when a belt tensioner is used. Thanks
@Stevesmith-yw7cr
4 жыл бұрын
Sandblast those pulleys and they will never slip ever again. I replaced my 1/2 HP motor with a 1 HP motor and I had the same issue until I sand blasted the pulleys and then used belt dressing on the belts. It stopped the slipping and it is now a torque monster. Those link belts are fine for straight from motor to main drive pulley but using link belts on tension adjustable pulley assemblies will cause problems. On my drill, I also replaced the two bolts that hold the tension on the belts by holding the motor position. I use a large screwdriver to move the motor back to tighten the belts and then use a wrench to tighten the two bolts instead of the two hand bolts that were from the factory. Big big difference. The reduction system also is a great way to thread bolts and bolt holes. Having that huge pulley out of the drill allows me to turn the drill press by hand (remember to unplug the drill first!) To remove the main pulley, instead of a gear puller, just heat the pulley up a bit with a propane torch and it will easily slide off with a little force from a screw driver. That pulley is locked in place with a counter clockwise nut and the pulley itself is press fit which will slide right off with a bit of heat.
@desertdweller9548
10 ай бұрын
Yes, sandblast a pulley to make more friction on the belt and eat them up. Proper tension goes a long way. Trashing the pulleys is nonsense.
@ivanbasso3027
Жыл бұрын
The idler pulley offset crank is pointing to close to the jack shaft which would require an extremely tight tension from the jackshaft pulley to the idler pulley. If the jackshaft was where the motor is mounted and the idler pulley crank was close to 90 degrees to it then you can tension the belts properly and even use the original belt for the spindle pulley.
@RustyInventions-wz6ir
Ай бұрын
Just found your channel and subscribed. Very nice video
@GeorgeGeorge-xj2bc
2 жыл бұрын
As seen inside the pulleys housing there is enough space for a little bigger pulleys for the center and the quill driving.So replacing both with custom made pieces can reduce speed a lot more without extra modifications.Even in the excisting pulleys if wind inside 'em some thread or a tiny rope they will become bigger and speed become lower.Of course the belt will not seat perfectly in place but for some occasional large drilling it might work.
@christianbarber3420
2 жыл бұрын
That center pulley is designed to be tensioned by the drive motor, you could ad a pulley/jack shaft back in the original spot just to tension it back and keep all your pulley speeds and it would be minimal modification and it would be easy to reset to stock if you ever decide to upgrade and sell that drill press
@Cervan
Жыл бұрын
i know this is a late reply but i ended up ditching the center pulley, trying to drill 1 1/2'' holes the center pulley no matter how much tension i put on the drive motor it would continuously slip due to the drive belt stretching slightly and unloading/loading the secondary belt. In fact i had so much tension on the center pulley at one point that it had bent the mount that it rides on. I ended up going straight from the jackshaft to the quill and that worked great.
@johnlagatta5841
5 жыл бұрын
I bolted a piece of angle iron to the motor mounting bracket that had holes its entire length. Then hooked a heavy duty clutch return spring to the idler and then on to the angle iron. You can then adjust the tension along the angle iron. Your kinda making the idler work like the idler pulley on a automotive engine.
@petertyrrell6690
10 ай бұрын
If you put your jack shaft where your motor is now and the motor where your jack shaft is now, you'll be able to keep the original belt tensioning scheme, and you'll have more available torque at the quill.
@daiburt1833
4 жыл бұрын
I put a dimmer switch on mine works perfect and has done for many years . It slows the moter down didn't cost anything just ten minutes work . It's between the on off switch and the plug
@EMCOcompact
4 жыл бұрын
Is that an motor-dimmer (dimmer must be made for several Amps?), or.
@LBCAndrew
4 жыл бұрын
A dimmer lowers the voltage to the motor but when that happens it greatly increases the current draw and will overheat the motor coils causing short circuit. IT will also eventually blow out the triac on the dimmer. bad idea. what you need is a VFD.
@LBCAndrew
3 жыл бұрын
dimmers on induction motors = bad. Reducing voltage results in higher current draw which causes lots of heat in the motor coil. Also, when you slow an induction motor with a dimmer the torque drops off a cliff.
@kkall0602
3 жыл бұрын
I use 10k potentiometers
@totheknee
2 ай бұрын
What do you drill, tissue paper? There's no way you'd have anywhere near enough torque to drill through metal, unless you are using 0.5mm bits...
@spartaeus
5 жыл бұрын
Just get rid of the middle step pulley. Run the belt from the Rogue speed reducer pulley directly to the spindle pulley. You don't need the middle pulley when you have a vfd.
@Cervan
5 жыл бұрын
Thats what i eventually ended up doing, still slips but it works much better now.
@spartaeus
5 жыл бұрын
@@Cervan Belts tend to do that. Glad it's working better though.
@TF856
Жыл бұрын
Check out the video on here that adapts bicycle sprockets and bicycle chain to the shafts on their drill press so there won't be any slipping belts.
@JLang-bn3hs
Жыл бұрын
Swap locations with the jack shaft and the motor. That way you can pull enough tension on those belts to keep them from slipping. Pulling to the side doesn’t give you enough leverage.
@tjrick7745
5 жыл бұрын
Neat Kit.. seems like a little fabrication could fix the problem? any way to reverse the position of the motor and the jack shaft?
@Cervan
5 жыл бұрын
Yes you can flip the entire assembly upside down if you needed to run the jackshaft on the other side, i believe there are a few holes that are different on the top and bottom but it shouldnt be much of an issue. I ended up (mostly) fixing the issue by swapping to a drill press that used 1/2'' belts. Now i have a secondary issue with the plate flexing when put under load causing the belts to unload as my new drill press doesnt have a tensioner and goes straight from the jackshaft to the drill head. My next fix will probably be adding supports to the plate and some sort of rigid adjusting mechanism to keep the plate from moving towards the drill head when under load. Currently it will drill a 1'' hole without issue which is a major improvement from the original 1/2'' hole i could drill with this setup. ill make a followup video when i get it all done.
@spartaeus
4 жыл бұрын
What brand vfd are you using on that??? I'm looking for recommendations for a decent cheap one.
@Cervan
4 жыл бұрын
the brand is "KCLY" i think this is a similar one to the one im using now. www.ebay.com/itm/KCLY-1-5KW-2hp-7A-220VAC-Single-Phase-Variable-Speed-Drive-VSD-AC-Drive-Inverter-/202218178553 if i were to look for another VFD i would highly suggest getting an oversized VFD for your application, atleast double the hp with a moderately sized braking resistor (or the ability for the VFD to use a braking resistor). I had quite a few problems with the vfd giving errors and shutting off if it accelerates too fast (over amps due to undersized VFD) or decelerates too fast due to the lack of a braking resistor and it opens the circuit.
@spartaeus
4 жыл бұрын
@@Cervan Appreciate the info! I'll give it a look. I am very curious if the Chinese vfd ' s are any good. A lot of people use em. I'm hoping they hold up. They sure are a lot cheaper than the Japanese ones.
@paulthorla9569
Жыл бұрын
Would the conversion you bought, work better if it was offered with a set of cogged pullies and cogged belts?
@Cervan
Жыл бұрын
Yes that would be a substantial upgrade, however there are two reasons that (still to this day) i have not changed over to cogged belts is two fold: 1. The harbor freight drill press takes a special tapered top pulley, and i would have to get this custom made or weld a toothed pulley on top of the original. 2. i moved from the harbor freight drill press to an old school press with 1/2 belts since this video, very quickly the main issue actually became the rigidity of the mounting plate as putting too much load (belted or not) would cause the jackshaft to deflect and unload the belt.
@anamyid6085
6 жыл бұрын
That kit will make extra torque ya?
@sofakingphat8087
2 жыл бұрын
I wonder if a electrical pedometer would slow the RPMs down. I use a electric pedometer to dim my LED lights. They are available commercially everywhere now. It has settings from 0 to 10 one being the lowest setting with the least amount of light. Tim been the highest and allowing for the most light to be distributed. My thoughts are can you use a electrical pedometer to do the same?
@Cervan
2 жыл бұрын
Unfortunately there is no way to to use a potentiometer to slow down the RPM's that i know of unless you are tying it into a VFD as the rpm reference source. This would still require a VFD for speed control. You might be able to convert this to a DC drive and use a pwm controller however.
@EMCOcompact
4 жыл бұрын
The electronic-rpm-adjuster - an expensiv one? Seems to be able to reduce rpm to almost nothing.
@LBCAndrew
3 жыл бұрын
VFD's are always expensive. Need a 3 phase motor typically though i hear they do somehow make them for single phase like this: www.amazon.com/Teco-Variable-Frequency-L510-101-H1-Inverter/dp/B01J8K3UVI
@johnwayne7551
Жыл бұрын
Couldn't you just use a speed fan control and plug it right in. No mods ?
@dp4racing
2 жыл бұрын
I think you needed to install a one horse motor instead of the reduction pulleys. Also the VFD is going to reduce power at low speeds. More tension on the belt should help & a better belt I think. Aluminum pulleys are likely more prone to slip than iron pulleys. I can drill 1” holes with my floor model HFT drill press, 1 hp, no VFD but it has more speed options. What’s the stock lowest RPM for that model press?
@racekrasser7869
2 жыл бұрын
220
@garyvukich4059
5 жыл бұрын
Wy not make an adjuster for the idler.
@EMCOcompact
4 жыл бұрын
Or a belt-tensioner.
@rustwilfried9857
3 жыл бұрын
Hi Cervan, no propper englisch, sorry. And I have not read all the comments ... . May be my idear is told somewhere ... The tightpower from the belts is not equal, because they are not in one line. the Power between spindel and middel is much lower than between middel and motor. The middel polley needs a second mechanism to tighten. Or, may be to short the Spindel/middel belt will bring a better angel for the lever at the middel bearing and it works I am not quiet sure with this, but i think it shoud be tested. Regards PS Thanks for your Idears. I just working with my Drillpress with VFD ;-)
@larrymoore5811
3 жыл бұрын
Chain drive
@TF856
Жыл бұрын
Have you thought of using that belt dressing spray to keep it from slipping?
@Cervan
Жыл бұрын
I did consider using that non-slip spray, however i opted against it simply because the issue is the pulleys unloading due to the belts stretching, and i think if they would have gripped any more they probably would have either broken or damaged something else.
@bulletproofpepper2
Жыл бұрын
Belt dressing spray.
@dull2114
3 жыл бұрын
Use a2 belt pulley
@phyxismonoxium9030
3 жыл бұрын
lol man. u need to put the biggest pulley at the drill side to get the most torque on the drill and the least on the belt.
@ANILKUMAR-hc9bg
3 жыл бұрын
If you do so speed Will increase than you can't drill larger size hole's... What he has done is right 👍
@EmmanuelBadabu
5 ай бұрын
Hi
@TF856
Жыл бұрын
Two pilot holes on each end? Why would you need four pilot holes?
@davehammond9796
Жыл бұрын
Purchase a. mag drill.
@bulletproofpepper2
Жыл бұрын
Mag drills a cheap right now, used a Kurt vice clone and a platen plate off the immovable jaw.
@desertdweller9548
10 ай бұрын
Looks like a deathtrap. Pulling the handle by the big pulley is nuts. Why, why put a vfd and this pulley kit when you could just buy a real vintage drill press that can punch 1" holes all day long? For the money you blew on all this you could be into a nice 15" or bigger machine with slow enough speeds to drill no problem. Too much money not enough sense. Hope you don't lose a finger to that contraption.
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