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HomeCNC milling machineHow to build A CNC machine _ DIY CNC mill

How to build A CNC machine _ DIY CNC mill


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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

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

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



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



20 mm Raills for X,Y and Z

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

Bellows style Ruland coupling with zero backlash .

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.

Aluminum sheet and angle.



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  1. Awesome Pro machine you got there. I am intending to make my self a small CNC machine for the use in the apartment. Seems to be able to make it I will need first some Chinese CNC than on it make upgrades to be able to make parts to make my own CNC. I will have to use aluminum though. I wish it gets like 1/10th stable as yours is. It will way smalle so it will be less of a challenge to. Seeing yours made me first happy to see someone builds something so cool and then sad while I do not have access to such tools to make one plus no space to have such a nice beast. Awesome work.

  2. how can you have a metal capable milling machine and still 3d print door handles, they need to be machined aluminium or brass, flex on the non metal mill guys lol

  3. Тоже делаю станки себе с использованием сварки. Но я произвожу температурный отпуск перед фрезеровкой. (правда требуется огромная печь для этого).
    п.с. Ну и обязательно шабером довожу поверхность под рельсы!

  4. Вау ! Уважаемый ! Ты просто ранишь воображение !!!! Это эмоции Колоссальная робота Вот что значит: МУЖИК задумал – МУЖИК -воплотил Мои наилучшие пожелания Творческих успехов и свершений !

  5. A machine needs to be pretty chunky to be able to reach speeds, feeds and depth of cut that gets a job out in a reasonable time.
    I wonder when they are going to make steel extrusions similar to the aluminum ones…
    Wont be as rigid as this masterpiece but …
    That will cut the cycle time and stress down quite a bit on the work I have to now do on a China 6040

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