Thanks, now to hunt down a 34 tooth gear!

Rick- The real trick is to use a 34 tooth stud gear instead of the 24 or 48. That makes your 6 tpi screw act like a 4.235 tpi screw, which happens to be 5.9972 mm per turn. That's close enough to 6mm

George, if that was directed at me, I have already made one for my 9a several years ago. I’m asking about the cutting of metric threads on a SB13, as I would like to make one for that lathe as

Allan, does this apply to a double tumbler SB 13 also? If not, do you have a similar setup for the 13 double tumbler? Thanks, Rick

Welcome Kit, I also have a 405 (#59162), and unless I am mistaken, someone has replaced your tailstock with one from a later 9". The 405s usually had the tailstock cast with both sides open which

Brian - I would keep the original drive assembly if I had it and use the VFD to power it and add the variable speed capability. That way you have the best of both worlds. Plus I like to keep the

Louis Can you show me a picture of the box you use for the VFD and how you vent it. Do you use a filter over the box . Also where Can i get a the boxes. I am looking for a 12"x12"x12" box with a full

Hello Louis, I just wanted to say thank you for taking the time to share your experience and thoughts on the VFD's and what you've used. Your information really helped me out, and I'll put it to

The 405 should have 20 DP gears, IIRC. But, you should measure the OD and tooth count of your gears to be sure. allan -- "well, I stand up next to a mountain- and I chop it down with the edge of my

I may be incorrect on Boxford. I think the 22 DP is Myford. Here is a link to gears.

Kit, I've got the 3D printer files from Thingiverse contributor dsell. The info on the gears he designed are as follows: 14.5 PA; 18 DP; 3/8" thick; 1/8" key; 9/16" hole. If you can find the same info

I'd suggest you clean it up and add a spindle sensor and X/Z drives and use LinuxCNC or MACH to automate it. You can still do manual operations with a CNC controller. If you don't want full

I ay be wrong on the Boxford. I think its Myford. here is a

I used to have a 405. first thing to know is that the gearing is 20 DP. Later workshops, 415 and on are 18 DP (except for the 415 twin gears, which you the 405 does not have). When I got my 405, it

Just bought my first South Bend lathe. It is marked South Bend Workshop Precision 9” with a 3’ bed. I am told it is a 405, manufactured in 1935. Unfortunately it is missing the reversing stud and

Thanks Louis

Brian, Based on my experience with repowering machines over the past 20 years and having half a dozen machines here running vfd's, here's my thoughts. If you want or need variable speed, a VFD is the

Nice - sounds like you are hooked up! That's what I did in my previous shop - ran a nice line to a sub panel for running a jumbo melting kiln, and some CNC equipment. I think we'll be moving in

Best thing I did years ago was to pull 240 volts from the house main breaker to a 125 AMP sub panel in the garage. 240 single phase runs the Rotary Phase Converter. The RPC runs a Bridgeport, 13"

Hadn't thought of using mig wire. Might give that a try. I just use nylon stranded cord rated 170 lb. Can't remember where I bought it. Either Lowes, HD or Ace Hdwr.