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Another Paddleducks build log
kvom:
don't forget the oil holes on the tops of the bearings. :clap:
spuddevans:
--- Quote from: kvom on August 29, 2009, 01:34:51 PM ---don't forget the oil holes on the tops of the bearings. :clap:
--- End quote ---
Do I still need these as I'm using ball races? :scratch:
If necessary I can add them when I bling up the bearing blocks.
Tim
bogstandard:
Tim,
Very nice indeed.
I thought I showed how to drill the offset holes using the vice on the mill and a backstop. I do all my offset drilling by that method, it is much more accurate than playing about with a four jaw. Such a long time ago now, I just can't remember all the details I wrote.
If you had bearings at either end of the blocks, ie 2 per block, then yes you would put an oil hole in between them, as it would lubricate both, but as you only have one in each, then the oil will drain away without going thru the bearing, so there is no point in putting oiling holes in.
John
spuddevans:
--- Quote from: bogstandard on August 29, 2009, 02:09:24 PM ---I thought I showed how to drill the offset holes using the vice on the mill and a backstop. I do all my offset drilling by that method, it is much more accurate than playing about with a four jaw. Such a long time ago now, I just can't remember all the details I wrote.
--- End quote ---
I think you did show that, but my issue was holding the eccentrics firm and square, I wasn't confident about just holding them in the vice as my Vee blocks are too large to use in my vice ( or rather my vice is a bit too small and the vee blocks are a little too big)
Anyway, it only took 2mins to clamp the 3jaw self-centering chuck to the mill, and that held them secure and square.
--- Quote ---If you had bearings at either end of the blocks, ie 2 per block, then yes you would put an oil hole in between them, as it would lubricate both, but as you only have one in each, then the oil will drain away without going thru the bearing, so there is no point in putting oiling holes in.
--- End quote ---
I have 2 races on each of the two central bearing blocks, so I could put in the oil holes in those. I have got some more of these bearings coming from the ebay supplier you gave the link to, so I could install the extra bearings on the outer bearing blocks as well if needed. That would challenge me to accurately bore out for the ballraces to match and keep concentricity with the existing bore.
Tim
chuck foster:
looking good tim :clap:
i have been looking at the plans/book that i downloaded and i like what i see...............if i just had more spare time :doh:
keep up the good work :beer:
chuck :wave:
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