Making curved parts

Making curved parts

This topic has 2 replies, 2 voices, and was last updated 13 September 2026 at 20:55 by JasonB.

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13 September 2026 at 20:43 #864728
Steve Huckins
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@stevehuckins53362
I’m struggling with my latest casting kit which is the Rachel Wall engine from EKP. The drawings have some missing dimensions but I can work with that. Not quite ready to move to the part I need help with yet but thought I might start to ask for advice sooner than later.

I haven’t yet made a part that’s cup shaped and I have two to make as seen in the photos.

Im not aware of the sort of tools I would need and how to machine them.

Any help please .

Steve
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13 September 2026 at 20:50 #864733
Steve Huckins
Participant
@stevehuckins53362
Also the two larger ones on the cylinder one of which is part of the end cap.
13 September 2026 at 20:55 #864734
JasonB
Moderator
@jasonb
Form tools are ideal for this. You can use a piece of gauge plate and machine the profile into that so for the outsid eof the cup I would drill an 8mm hole and then use a 1.5mm endmill to form the bead. Harden and then feed that into your work.

Or you could make two separate tools, one a 1/4 circle and the other a half circle and do it a bit at a time.
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