I am new to the world of CNC, and I humbly presenting to you my Hobby CNC design. Yes, this is Another Chinese Linear Rail Concept. the base of the design is from the ROVERCNC.COM lt model, adjusted to my budget.
First mistake, In the excitement of getting my own CNC I putted the cart before the horse and directed myself straight to alliexpress, ordering some linear rails, controllers, and motors. I end up with some weird ball screws and linear rails dimensions. anyway, i ended up putting things together and i would say that the design is 95% finished. Some parts are missing, I plan to 3d Print them in ABS.
Fusion 360 file
to date, i have in hand:
x-y-z axis linear rails ( 20mm), made in china
1605 ball screws assembly, made in china
A weird 4 axis RNR bitsensor controller, made in china
4x DM542, made in china
4x High torque Nema 23 motors, made in china
1x 36V 360W power supply, made in china
all C beams, required uncut. Oben build
all 20x40 required uncut.
screws and bolts
shielded cables, 4x wire and 2x wires, 18ga and 22ga.
Gantry Plates 3/8" 6061-T6
Z front and back Plates 3/8" 6061-T6
Feets 1/4" 6061-T6
Rail risers 3/8" 6061-T6
to be ordered
Hitachi, M12VC, I was looking for low speed ( aluminum/acrylic) and has to be Quiet ( 79.5db)
milling bits, cable chain, dust shoe
Any advice is welcome.
Still waitning for the 3/8 plates to be machined the lead time was 3-4 weeks. by the time stuff are pilling and I worked on the electronic enlocsure wich will all be inside the PC case.
Printing some drag chain component
hardware is slowly arriving.
working on the computer case with enclosed electronics
Today i received the machinated plates made from 3/8 6061 T651 precision plates, some paint will pimp this rig. Unfortunatly, some grass as stuck below the paint! I guess it will make a « greener » cnc.
Tapping all extrusion is a long process! Thanks to makersparts.ca that did some of the work for free!
Corona is more important than wd40 when tapping!!
While this build is starting to look at something, i got a bad feeling this weekend, when I tried to move the carriers over the rails, the movement was not smooth at all. i was really bad, and carriers are getting stuck every here and there. each carrier have been tested individually and each rail. I can say that most carrier are working well on the small rails but are not working smooth at all on medium and long rails. ( X, Y). Thus, said, i would warn anyone from aliexpress china made rails. i sent video to suppliers to see if he can do something.
by the mean time, some picture and the video of the carriers bad movements.
Z axis is done! Not the sexiest Z axis of all time but hopefully it will just work.
The base frame is done.
Now need to assemble everything together. with all the screws ordered, i shall be fine.
Yet Another Chinese Linear Rail CNC, my first one, doing this mainly for the fun of building it more than using it.
- Build License:
- CC - Attribution - CC BY
Reason for this Buildfor the fun of building it! Mill small aluminum and acrylic parts,
Inspired byrovercnc.com LT model