I want to build a fixture table, but it will be stored outside, so I am not spending the money on a good cast table.
I have a 4’ x 5’ chunk of 1/2" plate that I want to burn the holes into with my CF Pro. I also have some 1/2x4 bar stock I will rib the bottom with on a 12" grid.
The best hole I have been able to produce is .685 a the top, and .630 at the bottom. That creates a lot of pivot. How much pivot is acceptable with the 5/8 table clamps?
I am having a table milled to get away from this. I think the clamps will grab but they may be cocked alot.
You would have to cut a hole and try it. I would not want that much on a fixture table. Some guys will cut then come back and drill to size with a mag drill.
24^2…lot of damn holes.
But then you would have the holes there just flip sheet over and you have a hole your annular cutter will start in and save a bunch of time on lining things up.
I have a sample piece of 3/4" that had a 5/8" hole put in with a laser, to see how it measures.
Not much cheaper to have holes cut with a laser or a mill. laser might be $300-400 cheaper on a 5x8 table.
and your right its a whole lot of holes
Yeah, that hard crusty shell that the plasma leaves somewhere in the 63 rockwell area is hell on HSS cutters, Carbide do not like interrupted cuts.
If I am running an annular cutter, no point in running across the table.
If I am going to spend the coin on outsourcing the laser cutting, I may as well buy the cast table.
for me to have a 5x8 milled with holes on a 2" grid is about $6500 plus cheaper then a premium Fireball or Seigmund. I will mount to the frame I have or make a new one.
Thats no grinding on the one if I have it milled.
Well, local shop that has a laser…$2800. 4 ArcFlat tables…$2800. Premium Fireball 54x54…$6500 +S&H.
Looks like I am going to wear out a few annular cutters, and a 12 hour shift drilling holes.