Grinding a Custom Threading Tool on the Surface Grinder

I have a job that will require cutting some Modified 10 degree Square Threads on the lathe and needed a special threading tool to do the job. I used a blank of HSS to grind one on my Landis surface grinder using a compound sine plate to grind the compound angles. We will go over how to set up for this job, including how to make the calculations to grind angles on a sine plate or sine bar. Original Video showing how I made the nut for this job: Machining a New Bronze Cross Feed Nut for a 1909 F. E. Reed Lathe - https://youtu.be/5xxoREftKwk Link to the Sine Plate calculator on the SuburbanTool web site: https://www.subtool.com/st/how_to_set_a_simple_sine_plate_bar.html Support VintageMachinery.org on Patreon: https://www.patreon.com/vintagemachinery Please Visit: http://www.vintagemachinery.org Sponsored by: American Rotary Phase Converters https://www.americanrotary.com/?sld=krucker Use checkout code "Vintage10" for a 10% discount on all AD, ADX and AI converters! Hot Shot Heat Treat Ovens https://www.hotshotovens.com?sca_ref=4747637.UGmffQwafG Use checkout code "VINTAGE10" for a 10% discount!