Hi Alan. I saw your brake disk indexing plate, and since then I have been working back through your lathe tooling playlist, and I've got to say - these videos are awesome. Clear and informative, and just enough detail. There are a bunch of useful projects and tips on there that I can use in future. Thanks for making and sharing the videos. Long may it continue! Cheers, Craig
Gday Alan, some very handy tips, this is a great idea for an indexing ring, I’m looking forward to the next video already, great job, thanks for sharing, please stay safe during these scary times, Cheers Matty
I am very interested in this video. I wish I had seen it some years ago. I have a lathe chuck with a back plate with 60 holes in it. That number provides a good assortment of divisions: 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. It has been quite useful on a number of occasions as that group of numbers handles many dividing jobs. Instead of having more than one ring of holes, I hope to make some sector style shoes so that I can have a Vernier capacity. So a shoe with 8 holes spaced over 9 of the back plate's holes would add three factors of two and I would have additional divisions like 8, 16, 32, 40, 80, etc. Additional shoes with other numbers of Vernier holes could provide multiples of a number of other prime numbers like 7, 11, 13, etc. This technique is only limited by the number of holes in the back plate's hole circles that can be bridged by a sector and that would appear to be around 30 for my 60 hole circle. So 29 may be the largest prime number that I can add. That eliminates the often desired 127 division capability, but who makes gears on a lathe anyway. One thing that I did pick up was the idea of using the tapered part of a center drill as the primary surface for locating the divisions. I did not think about that and you have me wondering if I can go back and center above my holes and add that feature. It seems that is a better way of achieving accuracy. You wouldn't believe the procedure I went through to drill and ream my 60 holes as accurately as possible.
Hi Alan, this is certainly a very useful addition to the lathe. I'm always picking up any scrap steel discs that have been cut out of sheet steel at the local scrappy yard with the intent that they'll make useful indexing plates. I never thought about using brake discs before. In a previous video you were wondering what the two 1/4 BSW holes in you Boxford headstock might be intended for. On my Harrison L6 I have 2 similar holes and they are for mounting the opening/closing lever arm when a Burnerd Multi size Collet chuck is fitted to the machine. That is perhaps the answer as the full range of Pratt Burnerd chucks,collets etc were also available as additional extras for the Boxford lathes.
Fascinating repurposing of a used car bit. I can get a few of these dusc assemblies but because my main lathe uses a D1-4 mount for the chuck I doubt if I could use such zn indexing device. Still, very informative post.
I did wonder why you added the option of lateral adjustment to the locating pins block. It didn't click until you mentioned "The movement in this [is] enough to put maybe 3 rows of holes in this indexing plate"........ I feel like a friggin' idiot now. LOL !
Really not familiar with what you are doing and how to use it once done. I know about indexing heads for a mill, the typical 40:1 type. Once indexed there is a lock to secure the head. I guess, depending on the demands, will the pin be the entire position locking device? Will be watching to see the end result and it in operation. Really like your work and presentations!
Hi Alan. I saw your brake disk indexing plate, and since then I have been working back through your lathe tooling playlist, and I've got to say - these videos are awesome. Clear and informative, and just enough detail. There are a bunch of useful projects and tips on there that I can use in future. Thanks for making and sharing the videos. Long may it continue! Cheers, Craig
Gday Alan, some very handy tips, this is a great idea for an indexing ring, I’m looking forward to the next video already, great job, thanks for sharing, please stay safe during these scary times, Cheers Matty
Coming along nicely, Alan - great stuff!
I am very interested in this video. I wish I had seen it some years ago. I have a lathe chuck with a back plate with 60 holes in it. That number provides a good assortment of divisions: 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. It has been quite useful on a number of occasions as that group of numbers handles many dividing jobs. Instead of having more than one ring of holes, I hope to make some sector style shoes so that I can have a Vernier capacity. So a shoe with 8 holes spaced over 9 of the back plate's holes would add three factors of two and I would have additional divisions like 8, 16, 32, 40, 80, etc. Additional shoes with other numbers of Vernier holes could provide multiples of a number of other prime numbers like 7, 11, 13, etc. This technique is only limited by the number of holes in the back plate's hole circles that can be bridged by a sector and that would appear to be around 30 for my 60 hole circle. So 29 may be the largest prime number that I can add. That eliminates the often desired 127 division capability, but who makes gears on a lathe anyway.
One thing that I did pick up was the idea of using the tapered part of a center drill as the primary surface for locating the divisions. I did not think about that and you have me wondering if I can go back and center above my holes and add that feature. It seems that is a better way of achieving accuracy. You wouldn't believe the procedure I went through to drill and ream my 60 holes as accurately as possible.
Grazie Alan, sempre belli e interessanti i tuoi video. Ciao
thank you for your comments
Your work is great!
Really a very useful video series. I think I’ll have to try something similar on my lathe. Thanks 😊👍
Alan today’s video gave me some ideas on how to make a indexing plate for my lathe thanks
Super awesome idea thank for sharing.
Hi Alan, this is certainly a very useful addition to the lathe. I'm always picking up any scrap steel discs that have been cut out of sheet steel at the local scrappy yard with the intent that they'll make useful indexing plates. I never thought about using brake discs before. In a previous video you were wondering what the two 1/4 BSW holes in you Boxford headstock might be intended for. On my Harrison L6 I have 2 similar holes and they are for mounting the opening/closing lever arm when a Burnerd Multi size Collet chuck is fitted to the machine. That is perhaps the answer as the full range of Pratt Burnerd chucks,collets etc were also available as additional extras for the Boxford lathes.
Hi Howard Thanks for that info
Fascinating repurposing of a used car bit. I can get a few of these dusc assemblies but because my main lathe uses a D1-4 mount for the chuck I doubt if I could use such zn indexing device. Still, very informative post.
I did wonder why you added the option of lateral adjustment to the locating pins block. It didn't click until you mentioned "The movement in this [is] enough to put maybe 3 rows of holes in this indexing plate"........ I feel like a friggin' idiot now. LOL !
Don't worry its my turn to feel like an idiot in the next video
👍
Really not familiar with what you are doing and how to use it once done. I know about indexing heads for a mill, the typical 40:1 type. Once indexed there is a lock to secure the head. I guess, depending on the demands, will the pin be the entire position locking device? Will be watching to see the end result and it in operation. Really like your work and presentations!
Where is the part 3 ?
Hi Tony I sent you the details for part 2 and 3 part 1 you've seen
Indexing plates
see indexing plates from an old brake disc ruclips.net/video/PdCgErVti84/видео.html