How to build a DIY CNC machine completely from scratch. I designed the machine in Fusion 360 from the ground up and had a local water jet cut the parts.

The frame is built from 1/2" aluminum plate. Fully supported linear rails reduce the flex and NEMA 23 stepper motors drive the anti-backlash ball screws for the best possible performance on a budget. I used a TinyG motor controller in this project.

In this episode I put together the Z Axis rails and ball screw and finally get to see how the machine with look assembled.

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Bill of materials for this machine (Affiliate Links):
Total Price - $1,255.47

Aluminum Frame Local Shop ($520):
1/2" Aluminum Plate

Stepper Motors ($66.00):
http://amzn.to/2i6lN8B
http://ebay.to/2Br5FX6

Motor Controller ($129):
https://synthetos.myshopify.com/produ...

Z Axis Linear Rails ($41.40):
http://amzn.to/2nlvbdU
http://ebay.to/2iv0PEy

X and Y Axis Linear Rails and Ball Screw Kit ($218.96):
http://amzn.to/2j69yKl
http://ebay.to/2j79CJD

Z Axis Ball Screw ($37.99):
http://amzn.to/2zU9Nm6 (Doesn't include supports or coupler)
http://ebay.to/2AyFBN3

Longer X Axis Ball Screw ($29.36):
http://amzn.to/2nlynX2
http://ebay.to/2ANj8fx

Router Mount ($29.98):
http://amzn.to/2zSf7pT
http://ebay.to/2AmtsrD

Small Drag Chain ($4.45):
http://amzn.to/2jCWLyy
http://ebay.to/2zVFRpB

Big Drag Chain ($12.99):
http://amzn.to/2nkBezH
http://ebay.to/2i8tsU4

Wire ($21.95):
http://amzn.to/2jBuS9M
http://ebay.to/2zUyGOm

Limit Switches ($11.59):
http://amzn.to/2jCRbfr
http://ebay.to/2nlAjyM

Power Supply ($50):
http://amzn.to/2i6poDD
http://ebay.to/2zGuY6S

Nuts and Bolts Order Screenshot ($81.80):
http://bit.ly/2kepBca

The Router I Used:
http://amzn.to/2iaYjPV

Transfer Punch Set:
http://amzn.to/2jAtt3z

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