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HomeCNC Plasma CuttersHow to build a CNC Plasma Cutter Table | Water Table |...

How to build a CNC Plasma Cutter Table | Water Table | Free Plans & CAD Files


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Link to CAD Models and Plans: https://bit.ly/ToshDavisCNCFiles

Part 3 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 building the water table 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.

How to build a CNC plasma table: https://www.youtube.com/watch?v=OweWXLY_zbI&list=PL2P1-P0kDDPupxC1M-_AI2cfhrufejVZP

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):

* 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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  1. Hi, i am going to build one. But i am wondering if its better to use a waterbed or a floor grate. And a big funnel under. And do i need 3 axis (do i need the torch height controller?). Or can i use 2 axis. Thanks 🙂

  2. Phenomenal work. One tip for the future, You welded the frame on a not so flat floor, to remedy that, every surface can be made flat with 3 points of contact. Basically make a large cross with sturdy steel sufficient enough for the project, then support it at 3 points with machinist jacks, captive nut and bolt or whatever you want. Then clamp your frame together on that, get it square (not flat) then use the level to level everything length wise, turn the level perpendicular and make sure the pieces are square to each other. Do a diagonal measurement to make sure your still square. Then tack weld alot before final welding. I had to build a massive ibeam structure that was going to be lifted to a nearby mountain, in the middle of a dessert. Tape measures, levels, plumb bobs and soapstone. I didnt think of this but it has worked for me so many times. The cross we made was 30’x20’.

  3. Great job with the design. Have you considered replacing parts of the gantry with aluminum to reduce weight? I'm trying to plan a cnc build right now, thank you for the downloadable plans they are exactly what I needed.

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