Excellent discussion, and like most metal working and wood working projects there is more than one way to skin a cat.
My tool collection includes the usual right angle grinders, abrasive cut iff saw, acetylene torch, and the crown jewel of metal cutting, a 1940s vintage Kalamazoo 8肺 16 horizontal bandsaw.
Not to hijack this thread but has anyone invested in a plasma cutter and after using it regretted the decision?
Aside from using a cutting torch, my options for cutting steel plate are limited and for several months have been looking at plasma and the Hypertherm XP45 is to die for but a huge dent in the pocket book. Ideally I would like the capacity to cut 1/2 plate but in reality, 1/4 to 3/8 thick would be 99% of my cutting needs.
Any suggestions?
B. John
The china units are getting better a quote from WW member (Brand X)
Fine tuned my $92.00 120 volt plasma. The IGBT in these little units do a good job in them.. 1000 times better than a older mosfet unit,, Key is buying the correct/decent consumables for the torch..
Here are some cuts on a good 20 amp breaker(pulls more amps) 1/2 down to 10 ga..
https://weldingweb.com/vbb/attachment.php?attachmentid=1721621&stc=1&d=1608860812
How cheap can you go?? - Page 3
post 62- Pretty amazing 1/2 cut quality for what the machine cost.
post 64 how he achieved those quality cuts with a sub $100 plasma cutter Swirl ring seems to be a key item.
Another quote:
Cheap China stuff, but I've always had the best luck here..A few things that matter.. Correct .039 nozzles/electrodes, and most important thing is the swirl rings. Most China made ones are drilled at random. If you put ones that spin the air correctly, it will make a huge difference when using the .039 nozzles (30 amp nozzles/ 70 psi flowing) Really the 1/4 inch cut quality/speed is much improved, and overall sever is too.. The life on these consumables is very good too.. This machine blows away the performance of the original Esab Handy Plasma 250 (120 volt only 18 amp machine) imported from Italy years ago.. Herocut is made by Arc Sonic, and has stepped up the low cost Plasma machines.The pierce is really good too.. Punching throw .250 really fast. That was with the older non upgraded consumables. Bet it does 3/8 without issues now. Another test though.
His 1/2 " cuts are better than with my 50 amp MOSFET on 240 VAC
What I have and use use-
Rage chop saw for most tubing that i need a clean cut and the abrasive when it isn't as critical
long cuts time for the plasma cutter or the Oxy acet.
Overall Very happy with my 5 year old 3 in 1 50 amp (Arcsonic-Lotos) pilot arc plasma cutter, HF 14 " cut off saw and the Rage saw
the horizontal band saw is still on the wish list
ps. For what brand X paid for his plasma ($91) Can No longer see a Good reason for most not to give an inexpensive Plasma cutter a try, it is now a very,very affordable option.
That is if he isn't pulling our legs. trying to verify the cuts were made by a dirt cheap plasma cutter.