For steel milling, is it better to use a steel material instead of aluminum for the body material?
@hamrx8
2 жыл бұрын
Yes you are correct, however I don't and never intend to mill steel. This machine is only intended for plastics, wood and aluminium. For those materials it works superbly.
@pjhalchemy
9 жыл бұрын
Thanks for sharing your upgrade! It looks really robust and first cabin ball screw and rails. Using 5083 seems to be a good application choice over the cost of mic6 or Alca5...thoughts? Looks also like that is a zero backlash setup, nice. Wondering why you needed the 2 couplers though...torque or rapid traverse? Also looked like you changed to a bellows type at 15:42? Really love your creativity, setup and your videos. Thanks for taking us through this!! ~PJ
@hamrx8
9 жыл бұрын
pjsalchemy Hi missed this one. The purpose for the lower coupler has no technical answer. When I ordered the Rail and Ball screw kit specified as 300mm, however when it arrived the ball screw total length was 300mm the same as the rails where in fact for my design I needed it to be 350mm to include the machined ends. I applied a bit of lateral thinking and as my Ball Screw Nut was located at the top of the slide I was never going to use the lower 100mm of the screw. That gave me the idea of simply extending the lower machined section with a flexible coupler into the lower bearing. In fact this worked out to be an ideal design point. I changed it to the bellows style of coupler simply because I thought it look good.
@hamrx8
9 жыл бұрын
Updates and downloads now available on my website GHQP.... Just have to add some notes and comments.
@byoung255
8 жыл бұрын
The website link listed on your KZitem links isn't working (ghqp.com.au/). hamrx8.com/ is working.
@hamrx8
8 жыл бұрын
ghqp.com.au simply re directs to the main host at hamrx8.com www.ghqp.com.au works but for some reason if it is not proceeded by www. it doesn't. I will look into this. Thanks for alerting me to this problem.
@80sguitarnut99
9 жыл бұрын
Do you find the SBR16 rails good enough? I am thinking about using SBR20 rails. Also what Z travel do you have?
@genecollier576
8 жыл бұрын
hamrx8 thanks for posting this. I am going to use (steal) your ideas. I already have most of the parts, just waiting on the ballscrew to show up, coming from where else 'China'. My question is: why did you feel it necessary to resurface under some of the parts on the 1/2" plate?
@relikvija
7 жыл бұрын
what's the name of the song? thanx
@DiscoverRajivVlogs
6 жыл бұрын
You worked like pro but design is worse then a noob.
@TINKSTAYLOR
8 жыл бұрын
Excellent video and i especially like the ball nut mounting the way you designed it to allow for any misalignment, really clever idea. Tinks
@hamrx8
8 жыл бұрын
+TINKSTAYLOR Yes it works well. I have also now applied this idea to the Y and X axis ball screws along with some other modifications that I plan to do a video and publish details on my website soon as I find some time.
@raulirimias4810
8 жыл бұрын
No need to thank me. I thank you for sharing your knowledge with all the planet :)
@rok1475
6 жыл бұрын
The design of gantry posts seems dis-proportionally weak compared to the rest of the machine. It would be an interesting exercise to measure the deflection of the gantry along X axis with a dial indicator while taking light to progressively heavier cuts.
@hamrx8
6 жыл бұрын
Thanks for your comments. This video ended with just the initial assembly. Final alignment was done using Dial Indicators and an Edge Technology Pro Tram. I have almost every type of dial indicator both digital and analogue. The whole assembly is extremely rigid, the gantry sides are 12mm plate aluminium. 95% of the machining work I do is with 0.5mm to 4.0mm cutters max, acrylic and some aluminium. Being my first home built machine I have learn't a lot over the years enhancing and modifying it so the next one will be bigger and even better. Cheers
@hamrx8
9 жыл бұрын
Some additional information is available.
@TINKSTAYLOR
8 жыл бұрын
Hi again can i ask were you got your alignment laser from thanks Tinks.
@hamrx8
8 жыл бұрын
+TINKSTAYLOR I bought this on line from SDA Manufacturing. Just Google lasercentreedgefinder
@antons6146
9 жыл бұрын
What spindle are you using? Is this a ATC?
@hamrx8
9 жыл бұрын
***** It is a 1.5KW Air Cooled VFD purchased on eBay from a Chinese Supplier. Disregard the blue top cover, I made this myself from aluminium and anodised it that colour just to be different. :)
@raulirimias4810
8 жыл бұрын
Have you thought mounting a tool changer?
@ericp4672
8 жыл бұрын
I'm really impressed by your design! Currently I'm trying to build my first cnc and I can't figure out what kind of Stepper is necessary for milling aluminium. The build volume will be 400x350x200. Currently i'm looking at the Nema23 with 425oz or would you recommend Nema34 800-1000oz? For the mill I thought about something between 800w-1,5kw. What type are you using in your build? Also could you tell me why you have a coupling on the bottom of the Z-axis ball screw instead of directly putting the ball screw through the end bearing? I would really appreciate any recommendations.
@hamrx8
8 жыл бұрын
+Eric P It all depends on the maximum size of cutter you will be wanting to use. For me milling Aluminum I don't usually go greater than 4mm and take shallow cuts usually 0.5mm per pass. So for me the size of stepper I have on my CNC is way more than adequate. I am not an expert so cant really advise you, when I made my decision I just looked around KZitem videos and looked at what others were using as a guide. I am using a 1.5KW VFD Spindle Motor, that has an ER11 Colet that can take up to a 7mm dia cutter. As for using a flexible coupling at the other end of the ball screw, I just liked the idea, honestly at the end of the day you don't even need a bearing. I originally had a fixed bearing but thought a flexible coupling looked good and allowed for any slight misalignment. Honestly there is no deep engineering secret to why I did it this way.
@ericp4672
8 жыл бұрын
+hamrx8 thanks a lot for replying. the website offers a lot of steppers did you use the nema23 or 34?
@hamrx8
8 жыл бұрын
+Eric P The specification of the Stepper Motors I used is NEMA23 3A 263 Oz-in (18.9Kgcm = 262.4 Ozin)
@andreels
8 жыл бұрын
wow mate, nice job. i was just about the ask what is that coupler at the bottom, but then read your website :) .. great work !
@hamrx8
8 жыл бұрын
+Andre Els Thanks Andre for your comment, much appreciated :)
@TeTauruPihama
9 жыл бұрын
Wow! Mate that is a piece of art work, love it.
@hamrx8
9 жыл бұрын
TeTauru Pihama Thanks, you know me it not only has to work but has to look good as well.
@cncdavenz
9 жыл бұрын
Hi I am in the process of making my second cnc router and this will help me lots Cheers Dave
@hamrx8
9 жыл бұрын
Dave Bassett Thanks for letting me know. More info on my website soon.
@protator
6 жыл бұрын
the pic with the digital angle gauge was a joke, right? oh boy, my stomache ...rofl
@hamrx8
6 жыл бұрын
The digital angle gauge was just used as a guide during the assembly. For the actual alignment I used all the usual dial gauges etc including an EDGE Technology Pro Tram. Pleased you got some enjoyment out of watching my video and thanks for taking the time to comment. :D
@tino2828
7 жыл бұрын
Hello, do you have any plans or kits available to buy for this CNC machine?
@hamrx8
7 жыл бұрын
Robertino Ioan I am sorry I don't have either of these. I am retired and this is just a hobby so I never made any plans. However there is a very detailed page with many pics and downloads on my website. www.ghqp.com.au
@marcfeyzeau
8 жыл бұрын
Hi, where do you get your aluminum plate/stock ?
@hamrx8
8 жыл бұрын
+Marc Feyzeau I obtain my Aluminium from a local supplier Action Aluminium in Bayswater, Victoria They are only 15 minutes drive from my home.
@jadherpoco
7 жыл бұрын
Is there no need for tram adjustment on this new build? Nice work by the way :)
@hamrx8
7 жыл бұрын
It does have tram adjustment grub screws at the top of the motor mount allows the spindle to be rocked forward and back in the Y-Axis along with X-Axis by virtue of having the motor mount screws slightly loose. I found I could do it without having to make up specific tram blocks with grub screws like the previous Z-Axis assembly. But in hindsight this probably would have been a good addition.
@philiprogers5772
8 жыл бұрын
I have been using a steel cutting end mill to cut the perspex for this part but i find the cutter gets hot and the plastic melts on to the tool. What cutter do you use?
@hamrx8
8 жыл бұрын
+philip rogers First of all make sure you are cutting "Acrylic" ( also known as "Plexiglass") and not what you would get from a hardware store commonly known as POLLYCARBONATE. Pollycarbonate has a lower melting temperature than Perspex and will soften, clog the cutter and cause a mess. Next use a 2 flute or 3 flute cutter NOT a 4 flute cutter as you would use for steel. I have never had a problem machining Acrylic as you describe.
@philiprogers5772
8 жыл бұрын
+hamrx8 I have indeed been machining polycarbonate. I bought this instead of the acrylic because of its better toughness but am now suffering the consequences of its lower melting point. Thanks for getting back to me, its much appreciated.
@hamrx8
8 жыл бұрын
+philip rogers Way back when I started I also used Pollycarbonate and had to spray it with water while machining to stop it from melting, very messy. Pollycarbonate also does not have the clarity or polished surface of acrylic as pollycarbonate is extruded and not cast like acrylic. I learnt the same way as you!
@gioraver
8 жыл бұрын
very good and detailed job !
@hamrx8
8 жыл бұрын
+Gio Van Thanks for the comment. :)
@AlenaziCompany
6 жыл бұрын
Would you make me Z axis like yours without the linear sliders in the back
@hamrx8
6 жыл бұрын
Sorry I am unable to do this, I am not a business, this is a just hobby for me.
@AlenaziCompany
6 жыл бұрын
How much the whole job cost you money wise,
@AlenaziCompany
6 жыл бұрын
How much it cost you money wise
@hamrx8
6 жыл бұрын
For just the updated Z-Axis using some of the existing components the cost was only about $200 for the aluminium plate and linear rails. For the whole machine built back in 2010 I am guessing back then about $2,500. It was a while ago and I never totaled all the costs for parts and materials.
@tenij000
7 жыл бұрын
can share the dfx files
@hamrx8
7 жыл бұрын
Sorry I didn't make files. I used Vectric Aspire for all the CAD/CAM. I can share these if that's any good to you. Go to my website and send me an email via the Contact Me page. You will also find a lot more detailed information in the Projects Section.
@raulirimias4810
8 жыл бұрын
Good and clean work .
@hamrx8
8 жыл бұрын
Thanks, really appreciate your comment.
@oliverkarla9057
7 жыл бұрын
Raul Iri
@DiscoverRajivVlogs
6 жыл бұрын
Thr design is totally incorrect 🤣🤣🤣🤣you can't use full length of z axis .
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