I can't answer your questions, but there was a 116-tool SB change gear on Ebay just a couple of days ago. Heck, found it again:
https://www.ebay.com/itm/393150136206?hash=item5b8992ff8e:g:pkwAAOSwGLZgNQcp
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Friday, July 16, 2021, 12:06:42 PM CDT, david pennington via groups.io <davidwpennington@...> wrote:
The gear tooth counts you say you're looking for--116 and 108--strike me as odd. My 9C has the full set of change gears, and the highest tooth count is 80.
Do you have the gear cover with its graphics depicting gear arrangements for threading and fine feed? Do you have an intact banjo?
I went back to read your original post. You said the lathe was dropped. Just what was damaged? Was it only the change gears? What undamaged gears do you have? (Sorry for all the questions: my goal is to understand your situation, so I can help you get where you want to be.)
Obviously, there are other more intriguing options, as Jeff Chadima suggested.
Dave
David W. Pennington
Denver, Colorado
720-442-3744
On Friday, July 16, 2021, 07:17:59 AM MDT, pwoolybul via groups.io <pwoolybul@...> wrote:
I would like to thank you all for your help. I tried to fine the gears on Ebay with no luck finding a match for the ones that were on the lathe. The idle gear has a 6 to 1 ratio with the large one being 108 tooth gear and the small gear 18 tooth gear.? I did fine a 5 to 1 gear one Ebay but they want over 100 dollars for it. Did not fine the 116 tooth screw gear either. So it looks like I am finely going to have to buy a 3d printer (any thoughts on what printers that will do the job) and using abs filaments. I do have a Shapeoko 3 router I may try cutting them out of aluminum plate, but I do not know it they would be accurate enough to run smooth enough to not bind up and created a load on the machine.
Bill in OKC too