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+--- Thread: How do I do this? (/thread-739.html)
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RE: How do I do this? - dallen - 08-26-2012
depending on how many of these bushing that there are for you to have to make, it may be worthwhile to have a broach made so that you can cut both sides at one time.
if it is a job that will only be a couple of them at one time, or one once in a while I would set up and figure out how to drill the thru hole then use an endmill to open a slot in the end for the drive stud to fit into. a lot less work that way.
RE: How do I do this? - Mayhem - 08-26-2012
Just out of curiosity, what exactly does this mate with? I'm wondering if it needs to me metal or could be made from an acrylic or plastic etc.
RE: How do I do this? - PixMan - 08-26-2012
A broach made to cut both sides at once is easier to make. However, I believe the force required to push it through the hole would be far too great.
RE: How do I do this? - stevec - 08-26-2012
Looking further at the photo makes me wonder, are the flats the full length of the bore? If they are do they have to be? If a smaller length of the "keyed" portion would work, say, 6-7mm it could be done with a file.
RE: How do I do this? - Wongster - 08-26-2012
Hi guys,thank you for your suggestion. I don't think I'm ready to make a broach. Heat treating and hardening are skills that I've yet to learn. I may just drill thought and finish the 1mm odd thickness by a file.
The material in use has to be 304 SS as it will be submerged in a drinks dispenser. I've not have the chance to see the bushing in use but was told that it is inserted in a motor shaft with flats at the end. I don't have time to visit my dad's office though I would very much love to - there is a machine shop next door...
The making of the bushing will be ongoing though the quantity is unlikely to be big. For this model of the dispensing machines, he only need 3 for a start.
Regards,
Wong