I’m trying to figure out the best course of action for my invention, which will be made of steel.
I have a hand-made drawing. I went to a machine shop to get a quote for a prototype of the item and the cost will be around $700 (which is out of my budget for this stage of development). I think the price was so high because I didn’t have a CAD drawing?
I’m not positive I’ll find this iteration of the prototype to be acceptable, and I don’t want to spend $700 for every iteration. To decide if I’m satisfied with the design, I was thinking of getting a plastic one made, then I would move it into production. However, I need a functional prototype made before I can get funding for production and that means I need a steel prototype.
I don’t know what to do:
• If I get a CAD drawing made, would a steel version be cheaper to produce (e.g., using a CNC machine instead of machining by hand?)
• Should I go through all the prototype iterations in plastic until I’m happy with the design?