Quick question. I have my ab mold almost ready to cast (except for the walls and some smoothing) and was wondering about doing a mother mold for it. I read in Thurston's book that you can make a ''Mother mold'' for silicone molds. I take it as, pour on the silicone (thin stream) wait for this to cure, then go ahead with plaster or ultra-cal on top of that to save on silicone.
Can someone tell me if thats the right order for the whole thing ?
Thanks guys ,
Here are some pics.....