Sshire
Well-Known Member
- Joined
- Jun 29, 2011
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Boring Head Presetting Tool
If youve followed (and how couldnt you) my Elmers #33 build log, you saw that I used a boring head to mill the inside and outside curves on the crank.
The question came up about how the head was set for the radius.
When I did the operations, I guessed a lot, did a lot of adjusting on the boring head and generally moved the X and Y handles until the tools path matched my layout lines on the part.
There had to be a better way and heres my take on it.
The Mark I Boring Head Presetter
Nothing more than a 6061 flatbar with a 6 scale attached with 2-56 SHCS
The tool is zeroed under the spindle.
The boring head is mounted and the tool tip is brought close to the 6 scale
And, the boring head is adjusted to the desired radius.
Disclaimer
I havent tried this yet and dont know how precise it is. It should be close enough for a starting measurement. I think it could be very precise if a caliper was used instead of the 6 scale.
Enjoy!
If youve followed (and how couldnt you) my Elmers #33 build log, you saw that I used a boring head to mill the inside and outside curves on the crank.
The question came up about how the head was set for the radius.
When I did the operations, I guessed a lot, did a lot of adjusting on the boring head and generally moved the X and Y handles until the tools path matched my layout lines on the part.
There had to be a better way and heres my take on it.
The Mark I Boring Head Presetter
Nothing more than a 6061 flatbar with a 6 scale attached with 2-56 SHCS
The tool is zeroed under the spindle.
The boring head is mounted and the tool tip is brought close to the 6 scale
And, the boring head is adjusted to the desired radius.
Disclaimer
I havent tried this yet and dont know how precise it is. It should be close enough for a starting measurement. I think it could be very precise if a caliper was used instead of the 6 scale.
Enjoy!