Page 7 of 7

Re: Split Mould Casting Technique

PostPosted: Tue Jun 30, 2015 7:54 pm
by TomG
I see, thanks. I have another question. How do you put amount of resin into mould and rest into reservoir? Do you open mould a bit? This would be a bit messy.
Then turn on vacuum to get rid of big bubbles (I expect some border, to catch up resin expansion) and next turn presure to minimalize small bubbles.
I use for only pressure casting syringe with needle. But for typical resin with working time 3 minutes max it is not effective and labourious.
I hope combined casting will solve that.

Re: Split Mould Casting Technique

PostPosted: Wed Jul 01, 2015 7:45 am
by mangozac
Generally I just dump the resin into the reservoir and that's it. The vacuum part of the process sucks it into the mould cavity. Some parts that have a large volume compared to their gate cross sectional area need a little help, so I squeeze the mould a few times while pouring (which sucks the resin into the cavity). It's not ideal though as the squeezing process can cause mould slip.