oxy fuel torch pantograph with plasma?
Tue, 31 Aug 2021 10:13:32 GMT
Wondering if it would work to use a plasma with a straight machine torch in a oa torch pantograph... I can't think of any reason why not, but figured I'd ask you guys.--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:Other than adapting torch holder to accept plasma torch, I don't see why not. Both require precise control of standoff and cutting speed, where both processes are very similar in that regard.
Reply:Here ya go an O/A pantograph cutting 24" steel back when plasma only occurred when lightening struck the shed overhead. .....The operator is long dead, but hopefully his equipment remains. What you don't see in the background is nuff Acet and 02 bottled in racks big nuff to fill 40' semi trailers, all manifolded into one healthy torch feed.That white headed old man casually guiding the pantograph needle?...They called him CNC for shortLast edited by wornoutoldwelder; 03-19-2015 at 02:59 AM.
Reply:That is awesome! I love "windows"into the past like that. I wonder what the cut speed was for that.
Reply:Originally Posted by JustmeThat is awesome! I love "windows"into the past like that. I wonder what the cut speed was for that.
Reply:Sure it works we did it at my former employers. The only real issue is getting the right travel speed on thin stuff (can't go fast enough), and making sure the torch lead moves free enough.Millermatic 252XMT 304'sDynasty 280DXHypertherm PowerMax 1250Miller Trailblazer 302 EFIOptima PulserXR feeder and XR Edge gun and more athttp://members.dslextreme.com/users/waynecook/index.htm
Reply:The photocell tracers generally operate at a max speed of about 50 ipm. Too slow for really thin materials (with plasma) unless you use a smaller nozzle and lower power. There are thousands of these old machines still in use, many with plasma. Many of these old machines were updated with a cnc control that could digitize and save the large drawings....then the photocell head could be discarded, and often you could cut at faster speeds.Jim Colt Hypertherm
Reply:Originally Posted by jimcoltThe photocell tracers generally operate at a max speed of about 50 ipm. Too slow for really thin materials (with plasma) unless you use a smaller nozzle and lower power. There are thousands of these old machines still in use, many with plasma. Many of these old machines were updated with a cnc control that could digitize and save the large drawings....then the photocell head could be discarded, and often you could cut at faster speeds.Jim Colt Hypertherm
Reply:I retrofitted quite a few of the old photocell tracers to plasma from oxyfuel. Even turned a few of the cantilever machines into bridge machines....then upgraded to cnc control. There are still a lot of those out in the field running. But I'm not all that old.Jim Colt Originally Posted by wornoutoldwelderYup,.......and I'm sure Jim was there thru it all.... Jim, I ain't sayin you an old fart like me, i'm just sayin you 'seasoned' nuff to comment with authority.
Reply:Originally Posted by jimcoltI retrofitted quite a few of the old photocell tracers to plasma from oxyfuel. Even turned a few of the cantilever machines into bridge machines....then upgraded to cnc control. There are still a lot of those out in the field running. But I'm not all that old.Jim Colt
Reply:I'd love to trade up my last year's 30 for this years 30XP. I wonder if Hypertherm has a trade up program?
Reply:That is not a optical tracer ,it is a template shop made aluminum and wood cutting template with tracer wheels following it . Old school but still done.
Reply:I'm currently building a form of this now. It is based off a cnc plasma table with rails for the x and y axis with an area of the table for a stylus to trace a wood template. I'm still trying to work up an adjustable torch height and have a few other things to iron out. This is a cheap way to dip into cnc (without the cnc) before I save enough for a table. so far I have less than $100 into it and if I do get a cnc table I can use what I have as a welding table.Now just to get a plasma machine
Reply:Thanks for all the input guys...turns out the torch pantograph I've been looking at is a magnetic and not optical tracer. Since making steel patterns for everything isn't exactly what I'm looking for, I'll probably have to hold off (unless there's some way to convert a magnetic tracer to optical or cnc).--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
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