Learning to cut trapezoidal (acme) thread on a long thin flex stock. What pros don't show us. Lead screw for a lathe, acme thread 18x4 LH. Thread form, tool bit sharpening, troubles and tool breaking.
For those who want to support the channel:
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💖 www.paypal.me/sidworkshop
#SID #acme #threading #trapezoidal
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13 янв 2020