Gallery, Projects and General > How do I??

Expanding arbour

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Gerhard Olivier:
Could anybody explain how to make a 12mm diameter 20mm long expanding arbour that has to have a wider register to back material onto.  The other post somewhere made me think that this will make the tailstock die holder job easier but cant afford to buy the set from ARC at moment

Gerhard

bogstandard:
Gerhard,

I hope this helps. Done in a bit of a rush, but should explain it OK

After you have turned down to right size, put part on and tweak screw to lock it on.


John

Baldrocker:
John
Have you ever considered publishing a collection
of your crap o cad drawings, say 5000 of them?
Sure to be a hit in the m e fraternity plus an invaluable resource.
BR

Gerhard Olivier:
Thanks Bogs -ideal and not to difficult to make

20mm EN1A MS
 



Tidy the back end




Cut down to 12.5mm drill and tap m8



add M8 bolt and skim to 12mm and the reduce and cut bolt to an angle



Leaving a 12mm expanding arbour.




Gerhard

bogstandard:
But does it work Gerhard?


BR,

I find that run of the mill people understand a scrawled piccy much easier than a cad or works drawing.
This is how it is done on the shop floor when discussing how to get a job done.

The job is usually finished and all working before the engineer and draughtman have had time to draw it up.


John

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