Mini-lathe questions

Mini-lathe questions

This topic has 1 reply, 1 voice, and was last updated 5 December 2009 at 20:43 by Dunc.

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5 December 2009 at 20:43 #45922
Dunc
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@dunc
While I had already completed the initial clean-up procedures when reading Mr. Fenner’s text a little gem caught my eye (page 16, right-hand column, “Attention then moves… Arc drill an oilway and add internal oil grooves.”)

Hoping that I can get a few specifics:

diameter of drill ( for procedure in photo 2.16)?

Anything special about the hole (special drill form or ordinary twist drill, countersunk to make an oil reservoir, how is the swarf cleaned from the bore)?

Internally, does the diagonal groove extend completely to the exterior of the bearing surface or does it end blindly? Is it the same width as the drill diameter? What depth (into the bearing material) does it extend?

While I imagine that this is simply good engineering practice I need a few pointers.

Also, on page 9 Mr. Fenner mentions (top of right-hand column) that Arc is planning a “picture storybook” on their website of the initial preparation. I have looked around without success. Would anyone have a webpage reference?

Thanks
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5 December 2009 at 20:43 #4874
Dunc
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@dunc
From David Fenner’s book
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