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Re: Find Top Dead Center of a Hemisphere
Originally Posted by
N2 Welding
So many ways to skin this cat. Now I think I have to go get an el cheapo combo square kit from HF. Would like a Starrit but I’m too poor.
If you want a quality combo square at a reasonable price, check out Harry Epstein Co. They have "blem" squares made by PEC in the USA.
https://www.harryepstein.com/catalog.../result/?q=pec
https://pec.tools/
Last edited by Oldendum; 09-04-2020 at 10:26 AM.
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Re: Find Top Dead Center of a Hemisphere
Thank you Od. I've never head of PEC prior to this. A little research shows precision measuring tools etc.
Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.
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Re: Find Top Dead Center of a Hemisphere
Measure OD with caliper. Split the difference and use the sharp tips of caliper to scribe in from the edges 3-4 directions and easy to place tip of small bit centered on your marks or prick punch it and center bit in it.
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