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Metric threading on a 9A ?
??? ??? A bud gave me a set of the metric threading gears for my lathe . I keep thinking I? have seen on some lathes you need a different banjo to use these gears . DO you use the stock banjo
By mike allen · #107299 ·
Re: ER Collet nut
??? ??? My thought is to ??? ??? 1 . Make your pass ??? ??? 2. Back the tool out . ??? ??? 3. Power the lathe off leaving the halfnut engaged . ?? ???? 4 . Use the
By mike allen · #107298 ·
Re: ER Collet nut
??? ??? ??? I believe if you have a hand crank on the outboard spindle it will work , but I will not be able to test that theory for a couple 3 weeks.. ??? ??? animal
By mike allen · #107297 ·
Re: ER Collet nut
??? ??? If your threading SLOW that would be a good time to have a crank on the outboard end of the spindle????? . That will probably be my MO when I attack this project . I'm hoping to
By mike allen · #107296 ·
Re: ER Collet nut
Yup, You are right. I just re-watched this video from Abom79. He does the metric threading on his imperial lathe, starting at minute 11:40. He does start at the same number (1 in his case, with the
By Andrei · #107295 ·
Re: ER Collet nut
There are 5/8¡± 3C collets. They are NOT through collets. They will accept work 1¡± deep however. Jim B,
By Jim_B · #107294 ·
Re: ER Collet nut
Too bad it isn't true. allan
By m. allan noah <kitno455@...> · #107293 ·
Re: ER Collet nut
I think what makes my idea work is I have the 10k lathe with the 6k collet allowing me to put on a chuck. I don't think you can do that with other lathes. -- Bill From Socal
By William Nelson · #107292 ·
Re: ER Collet nut
Well that would have been the tricky part. I would have put in my 5/8" 6k collet. I'm able to put my 3 or 4 jaw chucks over that. Install a 5/8 ground rod in the collet block and tighten well. Insert
By William Nelson · #107291 ·
Re: ER Collet nut
Yes, that is the plan, anyway. ? ________________________________ Sent: Wednesday, February 15, 2023 11:49 AM To: [email protected] <[email protected]> Subject: Re: [SouthBendLathe]
By Andrei · #107290 ·
Re: ER Collet nut
Are you saying you can just disengage the half nut, hand crank the carriage back, and restart on the same number?
By Rick · #107289 ·
Re: ER Collet nut
I thought about this, but how would you indicate it in so as to minimize runout? ?The taper would be facing the chuck, so you couldn¡¯t indicate it on that, maybe on the relief cut?
By Rick · #107288 ·
Re: ER Collet nut
The only difference between metric and imperial on using threading dial is that with metric you have to start ON THE SAME mark, every time. ________________________________ Sent: Wednesday, February
By Andrei · #107287 ·
Re: ER Collet nut
I had that idea a while ago as I had some parts to make that would have been easier to leave in the chuck and go back and forth to the lathe and mill. I considered using carbide tooling to thread a
By William Nelson · #107286 ·
Re: ER Collet nut
I made an ER32 collet chuck for my Atlas 618 several years ago and love the ER system.? I turned this one from piece of round stock, threaded the inside for lathe spindle, outside for purchased ER
By Dallas · #107285 ·
Re: New member seeking info on my 3 Jaw Chuck
My SB9 was built in 1936; it uses a 1-1/2x8 spindle thread.
By Ken Powell · #107284 ·
Re: ER Collet nut
I don't know about the collet chuck drawing, but I provided that threading info a few years ago. Glad to see someone making use of it. When threading, I use the same method DJ showed, so I can use a
By m. allan noah <kitno455@...> · #107283 ·
Re: ER Collet nut
Here is a picture of the one for my SB13. Note the relief groove, plenty of room for the spindle to park. This is a schematic I found on the internet, it is what I used to make mine. I don¡¯t know
By Rick · #107282 ·
Re: ER Collet nut
The spindle stops in the relief groove. Therefore, no variation in the thread.
By Rick · #107281 ·
Re: ER Collet nut
I¡¯ll concede that he is using the threading dial, but not how one would normally use it. What he is doing seems like a lot more work, for what advantage? I think he is just introducing another
By Rick · #107280 ·