DIY Injection moulding by JR Hartley.

[Robin Hewitt]

I guess most people aspire to a nicely finished mould (so no machine marks are visible on the end result) - but since these puppies will not be visible, I could probably accept a rough & ready one! I'm hearing that Aluminium loaded expoxy might be the route for the mould for my modest requirements.

I think loaded epoxy may give you a couple of shots before flashing becomes a problem.

After machining the mould you get out your die grinding pencil and polish up the visible bits.

I do have a 4.25" diameter bar of 7075 T6, I could probably flog you a couple of slices off it if you have the means to cut it :naughty: