2+2+3 More Plasma builds, double the joy ! 3X2M and 2.5X1.5M cnc plasma build.

Tommy, what dimensions is that gantry extrusion. Is that what you are going to use?

machinedude wrote: to put things into perspective the gantry on the machine i am building is close to 300 lbs.

You and Stefan have too much machinist in you thinking bigger is better.

Mine is heavier than Tommy's but with all motors and gantry ends, I think it came in at just over 30 kg (75 lb). A lot of that weight is the linear rails and gear rack. so only 100kg or 220 lb lighter than yours.With hindsight, I'm sure it only needs one linear rail, but Tommy's belts are way lighter again!

My rapids are about 21 m/min (825 in/min). I chuckled when Stefan asked if one of my videos had been speeded up

that's why Tommy is so smart driving with the belts. it cuts a lot weight out of the machine and makes it do it's job that much better. very clever without a doubt

it just reinforces two things.

1. Routers and Plasma's have totally different design parameters. Dual purpose machines don't work out well.
2. Velocity and Acceleration is King for plasma cutting.

rodw wrote: Tommy, what dimensions is that gantry extrusion. Is that what you are going to use?

That is Bosch 45X45mm, and no i am not using that for the gantry, i will be using this:


if i ever get them in the lengths i need, they are 128X44mm, thin walls at 2.5mm and thick ones at 6mm, so at 210 and 270cm lengths should be plenty strong.
BTW i got the big guns out getting ready to do some damage! I mean the big Lam Technologies drives.

cool, I used 80x40mm RHS. I think the wall was 4mm, but it could have been 3mm.

And hurry up ans slam the Lams. I wanna see them fly.

why the expensive AL profiles not a cheep Square steelbody 3mm wall 2x2"