Dave Yes I like Protomold, in the same way I like RS for speed of delivery, and both companies have got me out the poo in the past. I like the idea of just uploading an stl file and then 2 or three weeks later the parts turn up in the post. They also do a CNC service. Getting past Protomolds automated system can be tough, last part I ordered with them they just would not budge on the wall thickby rm2014 - Ormerod
Dave You are right I am way off on the power cost (I thought it was a bit high when I wrote it) I am an order of about 6 out I should think. Energy costs are more like just short of £500. Which means an hourly cost of £10.84 cycling at 1 part every 2 hours., so approx. £2.17 per part x 30 + 5= £70 per set. That would put a break even tooling point at approx. 460 ormerods. Also cycle time may bby rm2014 - Ormerod
I'm with you on this Dave. Although Protomolds moulds seem cheaper its because they are aluminium but don't last that long obviously- the part prices are very expensive. Mclaren plastics have a small flexible standardised cavity insert system which is ideal for small parts it uses a common fixed and moving half so you only pay for the cavity, which can be P20 steel, and the part price is inexpenby rm2014 - Ormerod