2L Brown & Sharpe surface grinder

Dhansen

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Mar 3, 2021
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I was unable to find an elevating screw and nut for my grinder for less than $4,000 so I decided to make my own. Here's a picture of my latest project. I bought a 3/4-8 Left hand Acme Tap for $50 and the materials for the screw and nut for $100. Time, patience and perseverance and here is the result. 2L Elevating Screw and Nut.JPG
 

springer

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Dec 29, 2013
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Very nice, not an easy job with lots of different features. Did you buy the acme threaded rod or thread the entire thing from a blank?
 

Dhansen

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Mar 3, 2021
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Very nice, not an easy job with lots of different features. Did you buy the acme threaded rod or thread the entire thing from a blank?
Thank you. I bought 1-1/2 diameter round 2' long. The hex is 1-3/16 which I cut with the 4th axis on my mill and ground an 1-9/16 radius tool to cut the radius at the bottom of the hex. All the threads were lathe cut. The acme, because of its length required some finagling to get a good snug fit for the nut. Time, patience and perseverance.
 
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