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Type: Posts; User: Nevetslleksah

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  1. Replies
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    Here are some photos of my trial machining on the...

    Here are some photos of my trial machining on the chunk of Shore 75D Polyurethane
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    Results of mt trial milling on the McMaster 75 D Polyurethane

    So for those of you with an interest. My piece of 75D polyurethane 3" x 3" x 6" arrived from McMaster today, McMaster.com part number 8631K85. Per the Shore Hardness Scales chart supplied above by...
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    I did order a chunk of 75D polyurethane from...

    I did order a chunk of 75D polyurethane from McMaster to practice on. They don’t sell 80D. Hopefully it will arrive in time for me to practice milling prior to quote due date. Otherwise I will just...
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    How would 85A polyurethane compare with 80D?

    How would 85A polyurethane compare with 80D?
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    Milling Polyurethane 80 Shore D

    I have the opportunity to quote a small job which consists of (5) rectangular blocks of Black Polyurethane, 80 Shore D. The blocks are approx 2 x 2.5 x 3" with flat bottom pockets that have .50"...
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    7/8-14 would be the standard national fine thread...

    7/8-14 would be the standard national fine thread size and you can purchase threaded rod and taps at McMaster.com
  7. Hi cpak, if you still have a manual for a 16”...

    Hi cpak, if you still have a manual for a 16” Ohio shaper, I would like a copy if possible. I would be glad to pay a reasonable fee for your copy and postage costs if needed. Even better if you have...
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    John, RE: 16” shaper manual, Ohio Machine Tool. I...

    John, RE: 16” shaper manual, Ohio Machine Tool. I am in the process of purchasing a shaper. Would love to have a scan of your manual if possible. Would be willing to pay a reasonable amount for your...
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    In response to Seamoss above: Google and others...

    In response to Seamoss above: Google and others have digitized thousands (probably millions) of old books and magazines and I doubt they are done yet.
  10. Try Woodworkers Supply, Rockler, ebay for...

    Try Woodworkers Supply, Rockler, ebay for possible sources of mahogany.
  11. Some of you guys seem to have way too much time...

    Some of you guys seem to have way too much time on your hands IMHO ....,.
  12. Vent holes in welded tubing

    In the mid 1970’s, just out of high school, I worked as a draftsman-detailer for an engineering service firm. Occasionally we would be drawing large structural tubing bases for machine tools. We...
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    Spindle reverse switch on mill

    Yes, both of my variable speed R8 milling heads on my Bridgeport mills have a spindle reverse switch because when you put the head in low gear you have to run in reverse. Also, depending on the...
  14. Bridgport Z axis power feed

    I use a manual Bridgeport in my shop. I used to use a power drill with the do-hicky to raise / lower the knee. But I spent the money and put power feeds on all three axes. Beats having to pick up the...
  15. Problem appears to be solved at this point. Just...

    Problem appears to be solved at this point. Just finished grinding a test piece of 1018 crs. Also, the wheel may be an 80 grit wheel according to what is listed in the grinder owners manual. I don't...
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    I purchased a Cole Drill this year from ebay....

    I purchased a Cole Drill this year from ebay. Haven't played with it yet.
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    I purchased a Cole Drill setup on ebay this year...

    I purchased a Cole Drill setup on ebay this year (not quite sure why). Haven't taken the time to play with it yet, but will get around to it eventually.
  18. Check ebay.

    Check ebay.
  19. I am in Troy. Thanks for the tips. I guess I...

    I am in Troy. Thanks for the tips. I guess I should have tried grinding fewer work pieces at a time. Doubt if the wheel is too hard, it was the wheel supplied with the grinder from the manufacturer....
  20. Surface grinding issues - burn marks on my workpiece

    I was surface grinding eight round workpieces on my new 6 x 18" surface grinder which has 2-axis powerfeed yesterday. Workpieces were about 2" diameter and 1/2" thick and had been faced each side on...
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