One possibility for the change gears is 3d-printed gears. South Bend 9A 9B 9C and 10K lathe gears (14.5 PA, 18DP) by KouPouVou South Bend 9A 9B 9C and 10K lathe gears (14.5 PA, 18DP) by

I doubt I'll change much about it. I'm not that interested in cnc for what I do, I mostly do shade tree engineering or what we can redneck fabricating. I work on my cars, motorcycles, tools, and

Complications converting a C to a B.. dont be surprised if the back of the apron rub on the lower face of the bed, then theres the issue of needing a gear on the crossfeed screw. Adding a QCGB... the

Agreed - my comment is to go big on the stepper NEMA 32 or 34. Or consider a newer Servo Motor. My experience was what sounded right for torque and holding even with a gear reduction ended up a bit

Converting a lead screw from gear to be driven by a stepper motor is common. Search the internet and YouTube. Also look for CNC

I would think ya can with a new apron assy & carrage assy animal

That's what I was thinking too. Can you change it over to power cross feed. I know you can add a qcgb if you can find the qcgb and leadscrew but I don't know what power cross feed would have to have.

OK. I loaded 2 pictures. Search belt guards. In one of them i put a guard over a fiberglass cover on a 9". The flat piece on the left is designed to hook over a drum switch. I guess you can drag them

I believe ya have a C , no QCGB & no power crossfeed animal

I believe you have a c. The apron lever operates half nuts for screw thread cutting. The compound is not powered, only hand operated. payson.

A guy in Newton MA closed down and a friend bought a 9". He threw in some belt guards they had made up. I have 2. I don't want to toss them. If anyone is around the Boston area I'm happy to try and

My lathe is a 9 inch with a 48 inch long bed there is no quick change great box on it so I think that means it's either a 9b or 9c how do I tell which. I hope this photo of the apron comes through and

Roger; I believe I have a good crossfeed screw and dial for a Heavy 10. Denis DodgeM37@...

Has anyone got any NOS dials and screws for a Heavy 10L? Im looking for both the compound and crossfeed. Thanks. Roger

One of the reasons for your success is the size of your motor. I guess the original motor on the lathe was less than 1HP , so your motor is over 2x the size of the original. That gives you a lot

On my 11" Logan 922, I went with a 2 horse 1750 RPM 3 phase motor with a VFD. Drive manufacturers recommend using an inverter duty motor because they have more substantial insulation which can

OOPS! didn't realize you are not using a VFD on the present motor. Mine came with a 3PH motor so all I did was install a used VFD ($85) and programmed it for min 20hrz ND MAX 75Hrz. I still have ample

Interesting that you aren't getting lower than 130rpm. Are you running the VFD at full RPM? I run at 20htz on mid pulley in back gear and its about 32RPM

OK, agreed. Bigger pulley on countershaft? 1720 rpm doesn't seem excesive for motor speed, so are the pulley ratios non-original? Eddie

At some point. a smaller pulley will slip. Depending on the torque ( HP ) you are needing, you need a certain amount of area on the pulley surfaces that are contacted by the angle of the belt wrap