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I also thinking in buying one from torchmate, or just building a clone,...I already located almost all the components from internet sources
It will be nice to have some opinions before deciding going this way
Regards...
Hector
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Has anyone out there got a "torchmate" system that they are using, or know of someone with one? How are they? Are they worth risking running a business with them? Was it easy to use? Reliable? etc Please let me know......
Thank you.
Peter
I also thinking in buying one from torchmate, or just building a clone,...I already located almost all the components from internet sources
It will be nice to have some opinions before deciding going this way
Regards...
Hector
They use flashcut for their drive. I've read good things about them. I want to build one, but I will probably use Mach2 with a breakout board, and THC from Bob C. I'll use geckos or rutex for the drives. I'm looking at One CNC for the cad. My cousin retro fits industrial cutting tables around Portland and strongly recomends a servo drive over a stepper system. This is because of the speed you can get off of a servo and maintain position at speed. We have to remember that plasma cutting goes faster than routing.
I looked at the TM before buying a ShopBot plasma CNC. The TM was Aluminum framed and flimsy in my opinion. I know that it would not be able to stand up to the abuse of throwing a shet of 3/8" steel on it like my steel framed SB. Aluminum pits...badly!
Seems like a good outfit, the owner is nice, but it just wasn't beefy enough for production work IMHO.
-Brady
Originally Posted by braidmeister
I plan on throwing to the table 6x20ft 1/2" and 3/4" steel sheets...I think either one the TM or the SB will break apart if I dont go easy
We have to talkI just planning same stuff as you...do you have a msn messenger account we can chat?
Regards..
Hector
A couple of problems that I noticed with these machines.
1. they drive with a rack and pinion on one side of "X" axis.
2. the linear slides on X axis looks kind of cheap
3. looks hard to load because all four corners come up above the table to support the rail
just a few observations
Allen
I'd be wary of any machine that uses extruded AL on a plasma cutter. I don't like the idea of ANY cnc machine that you can bump into and mistakenly move the table...The only way my machine moves is if you jack it up in several locations and have wheels and a football team to help. My frame can probably support a truck on it...the TM doesn't seem robust enough....and they use teeny steppers on it.
-Brady
Braid,
To support the weight using steel and making it heavy duty is a good idea. But on the moving axis on a machine that has no side pressure (like a milling machine would have) I would think using aluminum is the way to go.
Allen
Hi Allen,
1.- driving a axis with a rack an pinion is a problem? Could you explain, because I plan to drive my machine this way....
2.- the linear slides, in the torch mate machine are cam followers they dont nead manteinance and are rated at very high loads...the idea of this guys at torchmate are to provide a cheap solution that can compete with expensive linear slides, I know there are better ways to drive a axis put in a expensive way...think in this I'm trying to build a 20ft x axis table...that will mean thousands of dollars for a dual vee rollers and rails, or THK slides instead of a couple of hundred dlls...
3.- could you explain on this...looks hard to load, do you mean the material to cut? I'm planing on using a electric 3 ton hoist on a crane.
My table will be quite sturdy, very heavy structural steel....with a very light gantry...do you see any problems if I do this setup this way?
Regards...
Hector
Hello Hector,
First of all I'm not trying to be critical of another persons work. I'm sure their machine works fine.
I do understand that cam followers, stepper motors and using a rack and pinion are cheaper but with anything in this world you get what you pay for. Driving from one side with a rack and pinion, seems to me, to not be the best solution. Even with a rack and pinion one could drive it in the center to prevent the torque of the motor from twisting the rail along "x" axis.
looks hard to load the material that's going to be cut. Since the material to be cut sets below the top of the legs (by quite a bit, looks like 1-2 ft) you have to load it between the legs. If a person drives it in the center below the table you simply move the machine to one end, which exposes the whole table, and load the material.
One last note. I am making a plasma/router the will cut 4X4. The ballscrews for it will be $100 for X and Y axis. That's with two ball nuts for each. That seem pretty reasonable to me. The company, roton is listed below.
http://www.roton.com/web/index.jsp
a 5/8 dia. ball screw (rolled) cost 8.95 per foot and the ball nuts are $20 each
Again.....I'm not trying to be critical and I'm sure that all this stuff works fine. I wanted my machine to last a long time and cut very accuratly. Maybe one could accomplish that with the other items. I've never used them so I'm not sure of it.
Allen James
Allen,
Generally speaking, rack and pinions work very well on a plasma machine. My machine uses 2 racks and 2 motors on each X rail. One thing you might want to check is top speed of your machine in the X&Y directions. Depending on your torch amperage and nozzles, you may not be able to move that ballscrew fast enough to cut thinner materials. Your only saving grace at that point would be if your torch could use Hypertherm FineCut consumables, which don't require as much speed in thin materials.
-Brady
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