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Thanks guys ! I think I'm stuck with making a new gear as it's not just a gear, its actually ~ 3.625" of shaft that passes through a boss / bushing in the apron casting, ~.600" wide gear cut on the end. Shaft portion and the bushing have ~.050" of wear on them as well.

Thanks Rudy, it's been awhile since I cut one and none of the numbers were "solid". Then imperial or metric etc. Yes, and just "eyeballing this thing, I was thinking 20 * pressure angle. Now off to Ebay.

My lathe is broken down. 1640 Nardini about 1990 vintage (made in Brazil). Rack & pinion for longitudinal feed skipping, no broken teeth just badly worn. Company is dead, no parts supply. Up near the chuck is where its worn, tailstock end looks new (still factory paint on it). I'm thinking I can...

RSVP for me too ! Please and Thanks for doing this !

Quest Industrial in Calgary stocks W-1 drill rod. If I'm going to harden it, I prefer O-1 (oil hardening). I have read that A-2 warps less when hardened but any time I've looked, its considerably more expensive.

For fluxing, I like Pine rosin (that'll clear out your sinuses). I source pure lead and add ~4% pure Tin (helps to fill out the mold). I cast at 820 deg F because that's where I get the best mold fill-out. A couple years ago I abandoned bottom pour and bought a ladle, also added in a PID temp...

I'm with Johnwa. I'm a life long target shooter / lead bullet caster (73 Y/O). Lead becomes hazardous when its vaporized - like at an indoor shooting range - small amounts are vaporized by the blast of the burning gunpowder. Most modern indoor ranges have very advanced air filtration systems to...

Thanks for your help --- Much appreciated !

OK, seems I've made some progress, went out to the shop to record and list P00 thru P07 while looking at the default parameters, noticed P03 (intermediate frequency) set at 46 while default is listed at 25. Reset P03 to the default of 25. Reset P06 to 70, seems to take it fine, reset P06 to 75...

OK, Thanks to those that replied, the manual posted gave me the sequence of buttons to push, was able to increase the max Hz but no joy. 1st attempt, plugged in 90 Hz -- motor ran but quite slow to respond, surging rpm, and as I rolled in Hz on the pot, it finally threw an error code and quit...