It would help to know what you wanted to cast and what its use would be. This way we can determin the most suitable material and also the best moulding method. There are DIY injection moulding plans availiable on the net, but these plungers are slow to use.
I guess it all comes down to how many of the parts you need per day.
I recently finished reading a book on plastic forming methods and was very surprized at how many methods and variable there was in casting items.
When you mention vacuum forming, this method usually referes to shaping a flat sheet of plastic. The finished item will be hollow and not solid. Casting nylons usually requires a mould that will cast the entire object instead of just one side like vacuum forming. To cast an item in nylon will produce a solid item.
Then there is rotational moulding where beads of plastic are put into the mould and the mould is rotated in all directions while been heated. The easter egg principle. This will produce fully skinned item that is hollow.
Dont ever think " bout to say screw it " It may take some research but in the end you will get what you want and at the price you want it.  |