The platform is the basis of this PET filament machine. It is simple and inexpensive to manufacture.
I used a simple wall shelf and the dimensions are 130mm x 450mm x 18mm. (4.3inch x1 7.7inch x 0.63 inch) . The board used is chipboard, but you can also choose another material. It is important that the bolts hold firmly and do not come out under load.
You must print four legs, which are printed from PLA or PETG. I recommend a higher temperature (225 – 230 degrees Celsius) for higher platform strength. Attach the legs with wood screws that will not be longer than the thickness of the wood board.
You can watch short video how to make complette Petamentor platform here: