Cnc plasma table using Mach3 and Majestic ac servos

[outlawed26]

hey im new to this machinery and im a bit confused. What type of sensors are installed that allows the robot to know its current position?

[macbarrera89]

HI, I making a cnc plasma cutter table. I just wonder how can I setup the plasma torch so when the z axis goes up the toch turns off and when it goes down it turns on. I'm using Mach 3 and I have a regular Breakout board. I really have no idea. I will appreciated if you can help me out.

[bcaindustries]

@macbarrera89

This unit uses a MP3000 torch height control made by Candcnc. It basically controls the the z axis and the plasma cutter through the Mach3 software. If you don't want to use a torch height control you can use the spindle on output to trigger a relay to turn the plasma cutter on and off with an M03 and M05 command.

[BraydenFleece]

Very nice! Want to build another?

[bcaindustries]

@BraydenFleece

Sure we'll build another one. Are you looking to buy one?

[matthewsmyth1001]

@bcaindustries yah i buy one of u if cheap

[baccus61]

Nice build. If I bought just the rack here in Australia it would cost about $10,000. I made one and it cost about $10000 and it's about 1/2 the size and has nowhere near the refinements you have on this one. Ahhh. America is the land of opportunity (and bloody cheap good stuff )

My Hypertherm 1250 cost $5800 and that was with a VERY good discount from the resaler.. I actually got mine running last week after 2 years of working out how it all goes together and the cut speeds and feeds etc

[bcaindustries]

@baccus61

The rack we used was actually one of the cheapest components. It is a 20dp Made by Browning Gear It was purchased in 8ft sections though motion industries for about $200.00 each.

[baccus61]

@bcaindustries

Now I am just totally jealous. Thanks for the reply.

[lilkarlo789]

Can somebody help me? What mechanisms are used for x,y and z axis? Are those ball screws?

[bcaindustries]

@lilkarlo789

The x and y axis drive on gear racks drive by zero lash planetary gear boxes. The z axis runs a precision acme screw. All axis ride on precision linear rails with an automatic lubricator which is plumed through lines and manifolds to each rail truck.

[biessebod]

thats a whopper!

estimate of total build cost? im making a 4ft by 5ft with the same hypertherm, thc etc

[bcaindustries]

I have about $10,000 invested.

[nionut]

Lol

That is a fraction of a similar size if you buy from a specialized company

Nice Job