Link to CAD Models and Plans: https://bit.ly/ToshDavisCNCFiles
Part 4 of a series on how to build a CNC plasma cutter table. All the parts are complete. Check out my playlist for the build below. In this video, I am wiring the electronics of the CNC table. Some back story this is my 3rd build of a CNC plasma table. The first build you see in this video, while the second one I made was for a friend, featured in the THC video on my channel. This design is based on the design I designed for my friend. Hope this video helps.
I’ve updated the wiring diagram. This updated version should be a lot more clear than the one in this video. The updated version is located in the google drive folder under the name “Wiring Diagram Updated.”
How to build a CNC plasma table: https://www.youtube.com/watch?v=OweWXLY_zbI&list=PL2P1-P0kDDPupxC1M-_AI2cfhrufejVZP
0:00:00 Intro
0:00:14 Description of electronic parts
0:03:53 Wiring diagram
0:06:42 Build montage
0:09:12 Floating head assembly
0:10:05 Build montage part 2
0:17:02 How everything is wired to the electrical box
0:17:49 Plasma torch triggering
0:19:21 Wiring in the electrical box
0:28:30 Plasma torch triggering circuit
0:32:53 Location of limit switches
0:33:45 Mach3 setup
0:46:30 Setting steps per unit
0:50:38 Homing
0:51:55 Soft limits
0:53:07 Machine coordinates vs part coordinates
0:55:02 Small tricks with using Mach3
0:56:22 Outro
0:57:07 Some recent cuts
0:59:53 Uncut video of cutting a part
Parts List:
HG20 20mm Linear Rail Guide Actuator CNC 1500mm*: https://www.ebay.com/itm/292600713239
HG20 20mm Linear Rail Guide Actuator CNC 750mm*: https://www.ebay.com/itm/292600713239
3PCS Nema 23 Stepper Motor: https://amzn.to/3naoHLC
Nema 23 Stepper Motor: https://amzn.to/3r5Kc14
SainSmart CNC Micro Stepping Motor Driver**: https://amzn.to/3FfKdEJ https://amzn.to/31H6jCD
DC 24V 15A Power Supply: https://amzn.to/3FbyfvO
R55 Plastic Open Type Cable Wire: https://amzn.to/3GrjGWN
MR12 12mm Linear Rail Guide 100mm: https://amzn.to/3HN50Bf
8mm to 10mm Shaft Coupling: https://amzn.to/3r5Cbth
400mm 8mm Lead Screw ACME: https://amzn.to/3n9N10c
4 Pack Caster Wheels 4 inch: https://amzn.to/3q9Ja5d
5 axis CNC Breakout Board: https://amzn.to/3JTyLCu
12 Pack of Micro Limit Switches: https://amzn.to/3GfcXiy
Metal Gear Rack -20 Pitch 6ft (5174T21): https://www.mcmaster.com/catalog/5174T21
Metal Gear 20 Pitch 15 Teeth (5172T11): https://www.mcmaster.com/catalog/5172T11
Compression Spring 2″ Long 0.875″ OD, 0.635″ ID (9657K03) Pack of 6: https://www.mcmaster.com/catalog/9657K403
Zinc-Aluminum M5 x 0.8mm 20mm Thread Pack of 50 (91274A131): https://www.mcmaster.com/catalog/91274A131
Zinc-Aluminum M5 x 0.8mm 12mm Thread Pack of 50 (91274A127): https://www.mcmaster.com/catalog/91274A127
Zinc-Aluminum M5 x 0.8mm 16mm Thread Pack of 50 (91274A129):
https://www.mcmaster.com/catalog/91274A129
Notes:
* These are the linear rails I bought, though because I don’t have space in my shop I have to keep my machine outside and these rails have rusted, just keep this in mind
** I know the linked Stepper Motor Driver is unavailable. I just wanted to link the exact one I used. The second link is a driver that looks similar, I just have not used it so can’t guarantee anything
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