Thanks, Fixittt . Sandblasting is doable but I don't think it would help a lot in my case, you see my friend is using one final machining step that I don't know english word for, but the surface isn't smoth at all. I'll try and make on very closeup photo so you can see. As for my custom made block I use dremel and roughen inside surface of the block.
Ultra PeePi ,like EMC2 wrote it's the cross section that matters most and that's larger than the cross sectional area of 1/2" fitting (9mm ID).
What now everybody likes my custom made block more
Prices hmm, I have to checked with friend but informational prices for cnc blocks, actualy we named it M&B blocks (morphling & Boeing)M&B Al 45$, M&B Cu 65$ it's not just material, that almost doesn't count, but 2h longer machining (3h for Cu, 1h for Al block), they both come with 1/2" OD brass fittings, teflon washer, and all the nuts and bolts for instalation to mb.
For my custom block I would say I could make it for 60$, but now everybody would want that, and my time is very limited I'm home only on weekends until end of April, so I could make few blocks, but for CNC it shouldn't be a problem once we optimize process.
And Btw production block would have 4mm thick base. And of course I'll retest them with higher power AXP and posted results here
and if somebody would give me Joe's address, or where I could send M&B block for test, I would really apreciate. Any other info you can email me:
turbo1@email.si