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reaming radius arms
https://www.ausmini.com/forums/viewtopic.php?f=2&t=55054
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Author:  niffty64 [ Sun Jul 12, 2009 8:12 am ]
Post subject:  reaming radius arms

First of all I would like to thank Mick for his thread Radius Arm Rebushing - A How To.
http://www.ausmini.com/forums/viewtopic ... highlight=
A guide I followed except for one step (the reamer set up)
Because I didn’t have the guide shaft I had to improvise.
I set up the reamer in the lathe chuck. (make sure reamer runs true)
Set the Tailstock up so it slides without movement on the bed.
At this stage you will need a buddy to guide tailstock to keep tailstock centre in the radius arm.
Make sure the reamer is set so it enters the bronze bush(light cuts only) the reamer can generate a lot of grip.
Keep fingers clear. I used the tool post to rest the arm whilst sliding along the reamer.
Slowest Speed on the lathe
Keep reaming (small cuts) till shaft is nice sliding fit.
worked well for me
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Author:  MI65NI [ Sun Jul 12, 2009 8:26 am ]
Post subject: 

Mad idea mate.

Wish i thought of it myself, i had a bit of trouble, but all done now.

Author:  Mick [ Sun Jul 12, 2009 9:38 am ]
Post subject: 

I've got to get me a lathe....
It is very difficult to keep the reamer straight without a decent length guide bar. How many cuts did you take if you don't mind me asking?
Without the benefit of a lathe I took about 8 to a dozen till it was the correct size.

Author:  niffty64 [ Mon Jul 13, 2009 6:07 am ]
Post subject: 

Mick wrote:
I've got to get me a lathe....
It is very difficult to keep the reamer straight without a decent length guide bar.
How many cuts did you take if you don't mind me asking?
Without the benefit of a lathe I took about 8 to a dozen till it was the correct size.


I did it a couple of months ago not sure of the exact amount now.
but i think it was close to .010" .025 mm which i thought was alot.
We were taking about 1/2 thou per cut so well over 20 cuts I'd say

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