Floating material
1/29/19
Has anyone experimented with bleeding compressed air into the vacuum table to "float" the new sheet of material as it is being loaded?
1/29/19 #2: Floating material ...
It's my recollection that some older CNCs had an option called a reverse air table. It was a specific type of aluminum table that had small pinholes about every inch, so you get the low air volume, high air pressure needed to float a sheet, like an air hockey table. On a standard gasketed grid table, I'd try an array of 1mm through-holes in an experimental spoilboard and see how it behaves.
1/30/19 #3: Floating material ...
I have an off load system on my KOMO. Its a 5hp dust collector blower. When you shut off the vacuum zone i can press a button on my controller,another valve opens and the blower turns on. It was an option from KOMO.
1/30/19 #4: Floating material ...
Jared,
Old Precix routers had a pinhole hold down system similar to the pattern you describe. As a hold down it was pretty useless but now I wonder if it might have worked better as an offload cushion of air....chuckle.
Dropout,
I have to think that even blowing through a spoil board for an off load air cushion would raise clouds of dust in the shop. Other than that it sounds like a great idea to experiment with.
BH Davis