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Thread: H59 brass
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19th Feb 2020, 08:13 PM #1
H59 brass
I need to machine some 8mm brass rod . It's a carby throttle shaft . I am milling a section down to 4mm thick for the butterfly . What would be the most suitable milling cutter for a nice clean finish ?
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19th Feb 2020, 09:41 PM #2
Hi Morrisman,
If it were me I would be using a straight sided woodwork router bit ! Straight sides and no rake, run it fast and take fine light cuts so that you don't bend it. Or drill a suitable hole in a block of hardwood to support the shaft whilst machining.
Edited to add, you could use the same support to cut the slit for the butterfly !Best Regards:
Baron J.
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19th Feb 2020, 10:18 PM #3
Thanks
Thanks baron
The butterfly is fixed by two 3-48 screws
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19th Feb 2020, 11:01 PM #4
Hi Morrisman,
After you have slit the rod put a piece of scrap brass plate in the slot and then drill and thread as needed.
Just leave the bar in the jig.Best Regards:
Baron J.
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19th Feb 2020, 11:33 PM #5Gear expert in training
- Join Date
- Aug 2008
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- 34
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Fyi, all woodwork bits have a positive cutting angle
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