First of all I want to state that I love this forum, great feedback and active community!
Now my problem:
I own form2 and print in the castable resin V01.
I send it to two different casting houses
- Big casting house who also print themselves on EnvisionTec (uses Vacum casting)
- Small local caster who uses centrifugal casting and does not own any printer
Results with different casters:
- (Big company) Good to almost great casting results
- (Local company) Modest to very poor results (see images): we’ve been having a lot of extremely rough surface and porosity in the gold. Although he does claim to follow the recommended burnout schedule.
We’ve tried putting the flask in the oven at a higher starting temperature (didn’t fix the issue)
We’ve coated the print models with HairSpray (which seemed to work once, but the second time it didn’t).
What would be the reason for this problem with my local casting agent? I like the guy and we’re undergoing this learning curve together =)
The local casting house uses SRS Silk (Could this be the problem? ) http://www.srs-ltd.co.uk/products_services/silk.html
The Big casting house won’t disclose any of their processes. Although since they have printer themselves I think they might some other process?
I’ve printed several models (1 stone, 3 stones, 5 stones, 7 stones and 9 stones) and cured each in my curing nail salon box for respectively 1 hour, 3 hours, 5 hours etc…
We’re now testing if this influences the casting proces. I’ll keep you updated.