This whole series is extremely well explained and presented. I've been watching it over and over again to understand lathe gearing. BTW, I still have the very first part I ever made, in a little box. I'm proud to say it came out perfect! But I'm embarrassed to say it was an "improvement" on an existing part that turned it laughably unusable. So, I keep it as a reminder... but I'm still proud of it.
Don’t worry about the common mistakes George.. I’ve done the same thing MANY times as well as millions of others.. the absolute amazing job you done in restoring your lathe is definitely amongst the very best out there.. a 5 star two thumbs up for you buddy.. ⭐️⭐️⭐️⭐️⭐️ 👍👍
Ah, the old turn the material into chips process. Such fun. Been there, done that. The nice thing about making custom parts, you can fix most anything. Well done on setting up the gear train, that it runs quiet is very nice.
Great video's - your an inspiration. I have the exact 13 inch South Bend (1971n= model) and am slowly restoring / cleaning the lathe and your instructional videos are a life saver!! Thanks!!
An easy way top get a repeatable gear mesh on lathe spur gears is to use a standard sheet of printer paper. Squeeze the gears together with the paper between the two gears until all the mesh is taken up. Rotate the gears to get the paper out. You do want a slight amount of clearance between the gear teeth and the paper is just a cheap easy gauge to set that clearance. Bottoming out the gear teeth will accelerate wear so using that paper trick is a good habit to get into.
I love you videos. Anyway I just got my dads 9”c south bend. It was in my parents basement since 72 and was my dads great great uncles. It’s a 1937. I just put it in my basement and it runs great but need to clean gears. My dad had grease on them
I already see the next part he can make too, it's a spacer to put in place of the gear he's using in it's place. I have a South Bend model 34C, which is 13" x 6ft., and the gear trains are set up so that there is a spot for a compound gear, and there are bushings and spacers that allow various combinations to engage. Funny thing is I just made the same part, and a spacer so I can run single gears, but I got lucky and only made one :)
Tomorrow is the big day here. I am working out the details of a lift truck with experienced machine delivery driver instead of the flatbed winch truck favor I had originally set up. I found a good used pallet jack for $50 yesterday, and a lantern style post and 6 or 7 holders for $35 which I will hopefully acquire today. :)
George, I sent you a message with my email address in it. btw - I secured lift truck transport for the machine AND got a lantern tool post, a garden variety of 7 Armstrong and Williams holders, and a few cutters today. I feel so much more at ease knowing I don't have to contend with a lathe sliding off a flat bed.
He may be using a 3 phase motor operating off single phase 220 through a variable speed drive (VFD) that electronically converts 1 phase to 3 phase. I have that conversion on my Jet 12 x 36 and it works very well. You get an infinite variety of speeds through the lathe gear train and the VFD.
George - 5:50 ......on my thread chart on my 13" it says 'stud gear' 48 for the top row down to 4 tpi as you mention ..........but all the rest of the threads it indicates requiring a 24t stud gear. Like you I seem to only have a 64 and a 48. You call them screw gears here and that's what I see them called in my book. Internet search tells me the stud gear is the outboard gear on the reverse tumbler assembly. And there is a 24 there. ...........I need to make a 12tpi part but the thread I'm getting is WAY too fine. Any idea what I need to change? My gear train is set exactly like yours. (let's assume the quick change gear box is all correct) There is a wide range gear box SB makes that appears to only use the 48t but mine is the regular one.
Bobby, Are you sure the half nuts are engaged with the lead screw? Perhaps you are traversing the cutter with the power feed, which will result in very small threads
@@georgebell7103 LOL thanks G. Wow I was using traverse --- I know better but muscle memory took over. This is a relief though. I thought maybe I put the QC gearbox together wrong. I really appreciate the quick reply--- you hit the nail on the head
Sir ITI is a course where students learn about many trade just like fitter electrician plumber welder civil surveyor beautician nursing or many other trades
Hey, very cool subject you have here! I have a 13" South Bend as well, but it's a bit older...it's a 1919 South Bend model 34C, so it has a six-foot bed and standard change gears. Funny thing about your video is I found it while searching for a video about gearing, and was shocked to see that we both made the same part just a couple of months apart! Lucky for me I got the flanged bushing on my 1st try, but had to make the spacer twice...you might want to think about making a spacer for the end of your leadscrew, instead of using a spare gear for the job. Come and check out my channel and the Old Red Beast, my lathe...Aloha, Chuck
This whole series is extremely well explained and presented. I've been watching it over and over again to understand lathe gearing.
BTW, I still have the very first part I ever made, in a little box. I'm proud to say it came out perfect! But I'm embarrassed to say it was an "improvement" on an existing part that turned it laughably unusable. So, I keep it as a reminder... but I'm still proud of it.
Good to hear that the video series has been helpful. Thanks for your comment
George- I wanted you to know that I have rebuilt my South Bend 13” from scratch using your videos here. Sir, you are a legend!
Wow, thanks for the nice comment. I set out to create the video series I could not find when I restored my machine… glad to hear they were helpful.
Don’t worry about the common mistakes George.. I’ve done the same thing MANY times as well as millions of others.. the absolute amazing job you done in restoring your lathe is definitely amongst the very best out there.. a 5 star two thumbs up for you buddy..
⭐️⭐️⭐️⭐️⭐️
👍👍
Hey, thanks for the nice comment
Ah, the old turn the material into chips process. Such fun. Been there, done that. The nice thing about making custom parts, you can fix most anything.
Well done on setting up the gear train, that it runs quiet is very nice.
Yes, thanks for your comment
Great video's - your an inspiration. I have the exact 13 inch South Bend (1971n= model) and am slowly restoring / cleaning the lathe and your instructional videos are a life saver!! Thanks!!
Thanks for the comment. Lots more videos in this series on your machine. You may find them helpful
Must compliment you on the colour of those chips but when you said "$4700 part" I understood exactly what you meant!Cheers,wonderful job!
More parts have rolled of the since then, so the price is dropping. Thanks for your comment
I had to make that exact part for my 13" lathe also. Really helped quiet the gear train noise.
Hope your part was easier to make than mine.
Fixing the old machines, with the machines is my thing.
Yep, thanks for your comment
@@georgebell7103 thank you for the video
@@1889michaelcraig you are welcome
An easy way top get a repeatable gear mesh on lathe spur gears is to use a standard sheet of printer paper. Squeeze the gears together with the paper between the two gears until all the mesh is taken up. Rotate the gears to get the paper out. You do want a slight amount of clearance between the gear teeth and the paper is just a cheap easy gauge to set that clearance. Bottoming out the gear teeth will accelerate wear so using that paper trick is a good habit to get into.
Thanks for the comment
I love you videos. Anyway I just got my dads 9”c south bend. It was in my parents basement since 72 and was my dads great great uncles. It’s a 1937. I just put it in my basement and it runs great but need to clean gears. My dad had grease on them
Thanks for the comment, yes, gears on the lathe should have oil for lubricant.
I rally appreciate your videos Mr Bell
Thanks, I hope they are helpful
Make just one more good part and it will be down to $2,350 each! Congrats--looking good, George!
I already see the next part he can make too, it's a spacer to put in place of the gear he's using in it's place. I have a South Bend model 34C, which is 13" x 6ft., and the gear trains are set up so that there is a spot for a compound gear, and there are bushings and spacers that allow various combinations to engage. Funny thing is I just made the same part, and a spacer so I can run single gears, but I got lucky and only made one :)
I know you can put more than one gear on the bracket (banjo). Thanks for your comment. I hope to be more efficient when I make future parts.
Well done!
Thanks for your comment
Great installment in the series.
Thanks John
Tomorrow is the big day here. I am working out the details of a lift truck with experienced machine delivery driver instead of the flatbed winch truck favor I had originally set up. I found a good used pallet jack for $50 yesterday, and a lantern style post and 6 or 7 holders for $35 which I will hopefully acquire today. :)
Post your email
George, I sent you a message with my email address in it. btw - I secured lift truck transport for the machine AND got a lantern tool post, a garden variety of 7 Armstrong and Williams holders, and a few cutters today. I feel so much more at ease knowing I don't have to contend with a lathe sliding off a flat bed.
I received your test message. Loud and clear.
Excellent video, George. Did you make the electrical control box?
I seen from another comment you found out what I did. Thanks for this comment
George, another fantastic video... what are you using to lube that gear train ?
thanks,
Joe
Joseph Durnya ü787
thanks
I am also a ITI student of fitter and I am learning about this machinery just like u uploaded
great
I am so happy yo see you are back making your great videos. Will you show more of that electric motor driving the lathe. Thanks ...Ken
Thanks for the comment, happy to be back
Hi
He may be using a 3 phase motor operating off single phase 220 through a variable speed drive (VFD) that electronically converts 1 phase to 3 phase. I have that conversion on my Jet 12 x 36 and it works very well. You get an infinite variety of speeds through the lathe gear train and the VFD.
George - 5:50 ......on my thread chart on my 13" it says 'stud gear' 48 for the top row down to 4 tpi as you mention ..........but all the rest of the threads it indicates requiring a 24t stud gear. Like you I seem to only have a 64 and a 48. You call them screw gears here and that's what I see them called in my book. Internet search tells me the stud gear is the outboard gear on the reverse tumbler assembly. And there is a 24 there. ...........I need to make a 12tpi part but the thread I'm getting is WAY too fine. Any idea what I need to change? My gear train is set exactly like yours. (let's assume the quick change gear box is all correct) There is a wide range gear box SB makes that appears to only use the 48t but mine is the regular one.
Bobby, Are you sure the half nuts are engaged with the lead screw? Perhaps you are traversing the cutter with the power feed, which will result in very small threads
@@georgebell7103 LOL thanks G. Wow I was using traverse --- I know better but muscle memory took over. This is a relief though. I thought maybe I put the QC gearbox together wrong. I really appreciate the quick reply--- you hit the nail on the head
@@dizzolve I only knew what you did because I have made the same mistake... kind if dumb but it happens. Take care
Fitter and electrician have a international scope for work
thanks
Sir do u know about ITI. Industrial training institute
No Sir, I am not Associated with that organization
Lathe workers are called in India fitter Turner and machinist
thanks
Sir ITI is a course where students learn about many trade just like fitter electrician plumber welder civil surveyor beautician nursing or many other trades
thanks
Hey, very cool subject you have here! I have a 13" South Bend as well, but it's a bit older...it's a 1919 South Bend model 34C, so it has a six-foot bed and standard change gears. Funny thing about your video is I found it while searching for a video about gearing, and was shocked to see that we both made the same part just a couple of months apart!
Lucky for me I got the flanged bushing on my 1st try, but had to make the spacer twice...you might want to think about making a spacer for the end of your leadscrew, instead of using a spare gear for the job. Come and check out my channel and the Old Red Beast, my lathe...Aloha, Chuck
Thanks for your comment