In this video I’ll be building the enclosure around the machine. I have used 3030 aluminium extrusion to construct the frame and 4mm polycarbonate for the doors and front panel. I used a cheaper (but arguably less safe) material for the sides where people are much less likely to be stood if a cutter tries to escape!

I also make some rail extensions and install bellows on the X and Y axes, as well as begin to mount the spindle clamp to Z axis.

In the next episode i’ll be mounting and wiring up the Chinese 3KW ER20 spindle!
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DIY CNC Milling machine build.

My objective for this project is to design and build a CNC milling machine without the need for any machining of the parts. Ordinarily, building a mill requires a much bigger mill to get the axis surfaces flat and parallel.

By using aluminium tool plate (which is in theory pre-machined flat) and bolting the critical components rather than welding, it should be possible to avoid any machine work. After all, I’m building a mill because I don’t have one!

Linear rails and ball screws are the cheap Chinese 20mm style that you can find on eBay etc.
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Music Credits
—————–
No Quarter – TechnoAXE

——————
Not According To Plan – TechnoAXE
Basic Metal 12 – TechnoAXE
Future Ghost – TechnoAXE

source

In this video I’ll be building the enclosure around the machine. I have used 3030 aluminium extrusion to construct the frame and 4mm polycarbonate for the doors and front panel. I used a cheaper (but arguably less safe) material for the sides where people are much less likely to be stood if a cutter tries to escape! I also make



This is full video on how to build CNC machine at home. This CNC mill is very rigid it has very high accuracy. It has zero backlash.

Here are some info on build.

Build time: About 500 hours.
Build cost: About $4500

Travels:
Z : 11″ ( 27.9 cm )
X: 22″ (55.88 cm)
Y: 12″ (30.48cm)

Spindle:
5.5 KW ATC BT30 18000RPM from Ebay. ( very happy with it) seller is super nice guy.

https://www.ebay.ca/itm/Combo-ATC-tool-change-spindle-motor-BT30-5-5kw-18k-rpm-VFD-NBT30/184223154689?hash=item2ae48e4201:g:XTQAAOSwPdhdOt~h

Electronics:

BOB: PMDX 424. https://www.pmdx.com/PMDX-424
Spindle speed control: PMDX 407. https://www.pmdx.com/PMDX-407
Stepper motors : Nema 34 1275oz-in
Drivers: DM860d from Ebay

Software:
Mach4.

Mach4-Hobby

Rails:
20 mm Raills for X,Y and Z

Ball screws:
Y ball screw is 20mm
X Z ball screws are 16mm

Couplings:
Bellows style Ruland coupling with zero backlash .
https://www.ruland.com/servo-couplings/bellows-couplings.html.

Frame:
Y Axis
24″ x 14″ X 4″( 64 X 35.5 X 10.1 cm )
Material 1.25″ X 4″ ( 3.1 X 10.1cm )steel

X Axis
35″ X 11″ ( 88 X 28 cm )
Material .500″ (12.7mm) base plate
1.25″ X 3″ walls

Z column
35″ x 8″ X 4″ ( 88.9 X20.3 X 10.1 cm) tube with .500″ (12.7mm) wall thikness
filled with cement.

Enclosure:
Aluminum sheet and angle.

source

This is full video on how to build CNC machine at home. This CNC mill is very rigid it has very high accuracy. It has zero backlash. Here are some info on build. Build time: About 500 hours. Build cost: About $4500 Travels: Z : 11″ ( 27.9 cm ) X: 22″ (55.88 cm) Y: 12″ (30.48cm) Spindle: 5.5 KW



DIY CNC Milling machine build.

My objective for this project was to design and build a CNC milling machine without the need for any machining of the parts. Ordinarily, building a mill requires a much bigger mill to get the axis surfaces flat and parallel.

By using aluminium tool plate (which is in theory pre-machined flat) and bolting the critical components rather than welding, it should be possible to avoid any machine work. After all, I’m building a mill because I don’t have one!

Linear rails and ball screws are the cheap Chinese 20mm style that you can find on eBay etc.

source

DIY CNC Milling machine build. My objective for this project was to design and build a CNC milling machine without the need for any machining of the parts. Ordinarily, building a mill requires a much bigger mill to get the axis surfaces flat and parallel. By using aluminium tool plate (which is in theory pre-machined flat) and bolting the critical