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DIY Cheap Arduino CNC Machine – Machine is Complete AND Accurate!



In Part 1, we set up the Arduino & GRBL shield. Now, let’s use inexpensive linear motion hardware (links below!) to assemble the bearings, rods and steppers into a functional CNC machine!

Products used in the video:
Arduino Uno:
Linear Bearing Slider:
GRBL Alternative for Arduino CNC:
GRBL Shield:
24V Power Supply:
Multi-Meter: or
8MM Linear Rail:
Stepper:
Timing Pulley:
Timing Belt:
Dial Indicator:
Indicator with Mag Base:
2-4-6 Blocks:

In this video, we look at the CAD model of the machine, discuss basic design philosophy, test it’s accuracy (amazing results!), then do the final GRBL set up so that we can export CAM G-Code to use on the machine!

CAD Model (SolidWorks) available for download at (For Patreon Supporters)

We just added a Part 3 with a Z-axis upgrade! Check it out at !

Download Free Fusion 360 trial at

Part 1:

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Music copyrighted by John Saunders

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  1. Hi my much appreciated engineer, years ago I was working in autodesk inventor next then in SketshUp that is very Good and now in Fusion 360, my question for you is why do you working this cnc machine in sold works? I am does developer automatization as cnc and little robots, what software do you recommend for mi?

  2. so basically you made a printer can this diy build do anything besides draw a picture? theres printers that are 20 to 30 bucks that allready do this to the the cost you basically made a very over priced printer… right?

  3. "𝐈𝐭'𝐬 𝐋𝐢𝐤𝐞 𝐚 𝟑𝐃 𝐏𝐫𝐢𝐧𝐭𝐞𝐫𝐫𝐫𝐫 𝐟𝐨𝐫 𝐰𝐨𝐨𝐝" 𝐃𝐈𝐘 𝐈𝐧𝐯𝐞𝐧𝐭𝐢𝐨𝐧 𝐓𝐮𝐫𝐧𝐬 𝐚 𝐑𝐞𝐠𝐮𝐥𝐚𝐫 𝐏𝐢𝐞𝐜𝐞 𝐨𝐟 𝐖𝐨𝐨𝐝 𝐈𝐧𝐭𝐨 𝐀 𝐂𝐨𝐯𝐞𝐭𝐞𝐝 𝐖𝐨𝐫𝐤 𝐨𝐟 𝐀𝐫𝐭 >> https://t.co/gYUKPGsFw0?1dda23juhe65aa 4931

  4. "𝐈𝐭'𝐬 𝐋𝐢𝐤𝐞 𝐚 𝟑𝐃 𝐏𝐫𝐢𝐧𝐭𝐞𝐫𝐫𝐫𝐫 𝐟𝐨𝐫 𝐰𝐨𝐨𝐝" 𝐃𝐈𝐘 𝐈𝐧𝐯𝐞𝐧𝐭𝐢𝐨𝐧 𝐓𝐮𝐫𝐧𝐬 𝐚 𝐑𝐞𝐠𝐮𝐥𝐚𝐫 𝐏𝐢𝐞𝐜𝐞 𝐨𝐟 𝐖𝐨𝐨𝐝 𝐈𝐧𝐭𝐨 𝐀 𝐂𝐨𝐯𝐞𝐭𝐞𝐝 𝐖𝐨𝐫𝐤 𝐨𝐟 𝐀𝐫𝐭 >> Woodcarvingmachinee.blogspot.com 3208

  5. Didn't see if someone already suggested thus. You're using toothed belts and pulleys? Why not measure the distance per tooth on the belt (maybe count a number of teeth, take total distance and divide to get distance per tooth). With that and the number of teeth on the drive pulley you should have a good measure of distance per motor revolution.

  6. Would you recommend an Arduino/Grbl with independent drivers for a mini mill (Sieg X2), or would I be better off with Mach3 and a breakout board? I’m mainly concerned with missed steps and general performance. Any drawbacks that you’ve noticed with the Arduino?

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DIY Cheap Arduino CNC Machine – Machine is Complete AND Accurate!