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by eth0up 604 days ago
To the machinist/s here:

For nearly a year, I've been contacting local machinists for a small[*] project which involves 1) an accurate cut on both ends of a 17" billet of T6061, 2) two crescent cuts, 3) up to 8 threaded holes, but probably, 4) a wee bit o end shaping.

All the aesthetic contours, shaping and weight reduction I'd do manually - I hand machine bronze, aluminum and wood archer's thumb-rings, so can wangle that part.

This project would result in the world's first ILF asiatic (no shelf), ambidextrous aluminum 17" riser.

Though... Every machinist I've spoken to is either friendly at first, implying willingness and ready capabilities, or they simply say no thanks. But all of them ultimately reject the task, typically saying they're too busy.

I also have a design for a bow stringer that can handle longbows, recurves and short Asiatic bows safely and efficiently. No one will fabricate it around here.

Any suggestions as to why this is such a pariah project? Any suggestions on how I might achieve this?

* Not necessarily a good reason/excuse

3 comments

Have you looked at Shapeways or sendcutsend or xometry or 100k Garages?

That said, I have an especial interest in archery and multiple machines.

Contact me at: https://community.carbide3d.com/u/willadams and we can at least work out doing a couple of prototypes.

Will,

I looked at your site and didn't see a contact option. I'm quite tired and am often worthless by evening, so I'll look again come morning.

My apologies, you would need to an account there which probably isn't worth it.

My e-mail address is my name here, on AOL.com --- just drop me a line.

Thanks for the help. I will see what shapeways says too.
Find a hobby machinist.

People who aren't trying to expand their business don't want to deal in non-gravy projects from customers who don't seem likely to shovel them a bunch of gravy projects later.

Machining is a slowly dying industry in the west so there's far more people not growing their business at any one time.

Thanks for the insight. I think you're correct... My area is very gravy oriented in general.
Do you have a complete technical drawing?

My guess form rejection is either:

1. No drawing and vague specs.

2. Too time consuming and they don't want to quote the crazy price it'd take.

Machine shop time is very expensive.

I have another riser to copy the connectors. I have a not so technical drawing of the stringer and a wood/Al prototype.