4'x4' CNC plasma DIY project

[hector-xj]

Hi everyone, i'm new in this world of CNC machines. I'm starting a new project that includes make a CNC plasma table, in this case I select a 4'x4' machine and I already have a few parts that enlist below:

RM1605 1385 mm end machined ballscrews
RM1605 single nut
FF12/FK12 sets
SBR20 1400 mm linear rail
SBR20UU block bearing
Nema 23 stepper motor
162 mm linear shaft
Steppet motor driver micro controller
50W power supply
CNC stepper couplers
16 mm SCUU linear ball bearings

I hope you can help me because I have a few questions about limitswitch, how use the software, how install the THC or what plasma cutter use, however, I will be updating the progress.

Thanks for watching.

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[hector-xj]

For now, I receive the 36V DC 9.7A 350W Regulated Switching Power Supply


4x ball nut housings


1x 16 mm ballscrew 1605 and nut and lenght 135 mm


Also, a few aluminium and steel plates are in process to build it, I'm waiting for other pieces in a couple of days.

[hector-xj]

Today I picked up some pieces:

Ballscrew 1385 mm with single nut


FF12/FK12 set


SBR20 1400 mm


SBR20UU block bearing


Flexible shaft coupling CNC stepper motor coupler

[hector-xj]

Today I receive the set of limitswitch


the 6 mm linear shaft for Z axis


50W 12V Switching power supply AC to DC


6000Z Metal Roller-Skating Deep Groove Ball Bearing 26mm x 10mm x 8mm


and I'm wating for the aluminium plates, this will take a week

[hector-xj]

For now i'm modeling the plasma table looking for any issues and find some distances wrong, nothing serious.

[hector-xj]

Some progress

[riyad]

I'm no expert but it looks good so far,

You should consider what type of smoke and dust control system you are going with and integrate it in the early design stages. A water tray is cheaper but you might be looking at about 500lbs of weight added to your table, something to consider when sizing your members.

Also, you can use 3:1 or 5:1 gearboxes with your step motors, looks like you show this in your model, you can find these used on ebay. Direct drive may or may not work best i guess it depend on your application.

Neuron THC looks very good, I plan on getting one for my table when its up and running. Neuron CNC

Hypertherm plasma cutter all the way! PM45 is CNC ready too

[hector-xj]

I'll put on the water tray later, firs I want to learn to use. To install the gearboxes I need to know how the stepper motor works and then put it on or not, this is my first plasma table so I have no experience

[hector-xj]

Yesterday I receive On/Off switches


5 Axis CNC Breakout Board For Stepper Driver Controller



Stepper motor driver CNC controller



Linear Ball Bearing Slider CNC Bushing


Also, the aluminium plates are almost finished

[hector-xj]

Finally I got some stuff and I'm waiting for steel plates for the next week

Screws


Mounting board for the electronics


Torch plates


More torch plates


Cable drag chain, controls, relay and electric fan


Top guard


Bench

[hector-xj]

First armed piece

[hector-xj]

Hi everyone, I hope that someone can help me, I found this plasma cutter, Thermal Dynamics Cutmaster 52, and want to know if can be connected easily with the system of the cnc plasma table, any recommendation?

[hector-xj]

Hi everyone, I need some help.

Recently I bought a plasma cutter and I need to know how to connect an Miller 625 Spectrum to the CNC plasma table system, is there someone who knows how it works?


This is the Miller 625 Spectrum

[assink]

try plasmaspider.com that forum has a lot more knowledge on CNC plasma cutters

[hector-xj]

Thanks Assink, I'll see what I can find

For now, I'm working on the electronics, the mounting board

[coreyperez]

Hector,

How is your build coming along? Any updates?

Corey

[hector-xj]

I'm working on the electronics and I'm waiting for the nemma stepper mounts for install it, Also I need to cut the grid slats but I have not found someone to make them on a CNC table

Electronics mounting board


Grid slats

[hector-xj]

Finally an update, for now, I'm testing the CNC plasma table without the plasma cutter connected, I need to install the torch holder and grid slats to cut some pieces. Also I'm learning how to make better Gcodes in Inkscape. I think that the CNC is slow but it's better than nothing.
If someone has any recommendation to test it or improve it is welcome.

[coreyperez]

Finally an update, for now, I'm testing the CNC plasma table without the plasma cutter connected, I need to install the torch holder and grid slats to cut some pieces. Also I'm learning how to make better Gcodes in Inkscape. I think that the CNC is slow but it's better than nothing.
If someone has any recommendation to test it or improve it is welcome.

Hector,

I agree that it looks a little slow. While it would probably work, I'd expect rounded corners (from the heat) and probably an additional amount of doss in the cut. Depending on the thickness of your material anyway.

One question. Only because it wouldn't cost too much more, had you though of using gears to add drive speed (at a loss of torque)? There would be additional math involved, but once it was all sorted out, I think you would have more versatility due to the increased speed.

For my first project, I cheated. I purchased a R7 (Router) kit. I'll learn on this and hope to (in the future) use this to build my plasma table.

Corey

[hector-xj]

Hector,

I agree that it looks a little slow. While it would probably work, I'd expect rounded corners (from the heat) and probably an additional amount of doss in the cut. Depending on the thickness of your material anyway.

One question. Only because it wouldn't cost too much more, had you though of using gears to add drive speed (at a loss of torque)? There would be additional math involved, but once it was all sorted out, I think you would have more versatility due to the increased speed.

For my first project, I cheated. I purchased a R7 (Router) kit. I'll learn on this and hope to (in the future) use this to build my plasma table.

Corey

This is my very first CNC, I installed the system with screws because it was my first option, I had never seen a machine in person, only in videos. The X axis has two stepper motors connected in parallel and I think that is the reason why I can't increase the speed on Mach3 (up to 40 in/min doesn't work, only X axis), may be if I install another stepper driver, one per motor in X axis, it can be faster.

In the future may be build another with gears, however, for now I will use it just like that to recover some money (4 months of been working on it)

Hector