Technical recording. Frame. Mold assembly. 3D printed parts. PVA.
Submitted by Alexdobrianski on February 08, 2013
All parts of mold was 3D printed from PVA. PVA are tricky to print, slow speed are the only choice.As a result mold consists from small parts.Need to glue parts of the mold together. With PVA glue.
But before assembly needs to dry parts - Under Vancouver's weather it is essential step. Bake parts in stove / oven under 50-60C for 1 hour, and cool down inside zip-lock bag. Last step after assembly - PVA from the glue makes mold soft. Reason - water from a glue.
To solve this (it was not recorded on video) mold needs to be placed together with 1 pound of the sugar inside zip-lock bag. Baking in oven also can help. Now mold ready for composite manufacture -- knotted carbon fiber + epoxy will do job.