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

hey Tom,
Just a few questions, I think you should have faced, but I will have to read the whole thread.
1) How are the belts? better than rack?
2) What you think about float switch?
3) Should the side plate not be a single piece
or light wwight is forgiving?

Kiddekanin wrote: Can you shed a light on how you wired the THC300 inside the cebora ?

Yes of course, i still have it here so i can take some detailed pictures.

pinder wrote: 1) How are the belts? better than rack?

For short distances they are much better than the rack and pinion, silent and no vibrations. 15mm wide GTD3 has proven very nice for 3.3 meters of length on the big machine, but the gantry has to be very light, in my case 23KG gantry with GTD3 belts on each side is OK.

pinder wrote: 2) What you think about float switch?

I always used and still use float switches, make them very sensitive so they require roughly 2KG of upward force to trigger, and they never fail. I do not use Ohmic sensing as most of my machines are to be used by other users, so i can not afford having issues with it.

pinder wrote: 3) Should the side plate not be a single piece
or light wwight is forgiving?

If you mean the side plates with logos cut into them, they do not carry anything structural or any weight, so it does not matter much, they just keep the legs from twisting.

tommylight wrote:
If you mean the side plates with logos cut into them, they do not carry anything structural or any weight, so it does not matter much, they just keep the legs from twisting.

No I was talking about Belt drive system.
How a 3mm sheet would work?

Now i am really lost!
The belt drive system is mounted on 10mm thick aluminium plates, same for the idler bearings.

tommylight wrote: Now i am really lost!
The belt drive system is mounted on 10mm thick aluminium plates, same for the idler bearings.

leave it
Nice builds.
I'll definately use belts on the gantry.