RobertW wrote:Very nice! I printed a large hinged bangle on the B9 a while back that came out great, too. Printed it at an angle, though, with much fewer and heavier supports. But the end result is the important thing, so if you can remove all those supports without damaging the model it will be a total success!
I'll share a little of my experience FWIW...For difficult support removal I like to use a pointed krause bur. When a lot of supports are fused together making heavy wall-like or thick rod-like structures, I've found it safer to first cut through the support structures about 5mm away from the model and then go back with the pointed bur and remove the remaining nubs using high speed and very little pressure. Easy does it at high rpm, not forcing the cut, keeping the bur clean. I do this after curing in water under UV for 10 minutes or less; the resin is no longer tacky but still pretty flexible. Once the supports are removed I put the models in a clear jar of water on a foil covered dish outside under the hot Phoenix sun for a couple hours and it's ready to be filed, rubber-wheeled and sprued up.
Hope that helps!
Chris Botha wrote:like so.. in Thailand the lamps cost about 3 bucks and lasts 18 months or so. damn cheap. damn effective.
beware it does generate significant heat which doesnt seem to affect pic100 but does cause the b9resin to smoke slightly. for pic100 its 10 minutes straight up, for b9 its two batches if 5 minutes with a coffe break between. cured rock solid.
Hi Chris,Chris Botha wrote:The machine still set at 50xy as have a few more of these bangles to go... So the boys been testing it for regular jewelry at that resolution. Not to shabby actually, so I got then to cast two to test if we are fluking it with the great casts on heavy parts. Appears even lightweight parts cast fine on same cycle.
Once bangles are done I'll be keen to put them on 30XY25Z instead of 50XY35Z...
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