a vacuum bag has been a cheap alternative to a hydraulic press, that creates high pressure contact on all sides for gluing.
3D print gone wrong
Adhesion of the actual print to the printing surface is crucial for any print. The parameters in which the machine functions are so small that any small defect can throw off an entire print. Here, the initial few layers started to peel up once they started to cool which then caused the printing head to knock the existing layers out of alignment. It then continued to print onto nothing causing the birds nest you see here.
With our FDM 3D printer from Type A Machines, we're able to test fit and aesthetics cheaply and accurately.
Footprint is currently testing fit through foam impression kits that are scanned via photogrammetry scanners attached to an iPad.
Curious to see how expanding foams would interact with our 3d printed structures, we tried out several different density foams in small samples.
While messy, our tests indicated this technique could become feasible down the line.
In order to save ourselves time and money, we often remove the soles from existing shoes, and use the upper just to test our new outsole/midsole designs. This requires heating the shoes in a toaster oven to soften the heat activated glues commonly found in mass produced footwear. We then add acetone which dissolves the glue, and allows us to pull them off without much effort.