Using a template with a plasma cutter
Using a template with a plasma cutter
(OP)
Is it possible to use a template when cutting with a plasma cutter? Would it have to be non conductive? For example if I want to cut 16 4" diameter holes can I make a template for that and clamp it to the steel and cut the holes by hand ...





RE: Using a template with a plasma cutter
RE: Using a template with a plasma cutter
When we cut holes, we also use a template that is larger than the desire hole. The stand-off we use on our Miller Spectrum 625 has about a half inch between the cutting arc and the edge of the stand-off. Therefore, we would use a template that has a one inch larger diameter than the hole we want to cut. The plasma cutter would then ride inside the hole template. When the cut is finished, the hole waste falls out. If you use an inside template on a hole, as you cut you will have to move the clamp holding the template in order to cut under the clamp. You will then be holding the template on a hot, fresh cut edge and when the waste falls out, so does your template. This is why we like the outside template for the hole cutting job.
RE: Using a template with a plasma cutter
Thanks
John
RE: Using a template with a plasma cutter
RE: Using a template with a plasma cutter
RE: Using a template with a plasma cutter
I've used templates made of metal and some made of plywood. Either works as long as you allow for the offset.
The determining factors on material were complexity and longevity. Plywood tends to scorch on the edges and is short lived but a jig saw can rip out a fairly complex pattern quickly.
Aluminum is light enough to make larger templates easier to use as well as being fairly simple to shape.
We found that life and handling improved if the pattern was made with some risers to keep some space between it and the work. The template did not get as hot and dross had space to clear away from the cut instead of building up on the edges of the template. The buildup made the next pass with the cutter less smooth and caused dragging which affected cut quality.