jack620
17th Sep 2017, 05:25 PM
I bought a used indexing wheel off eBay and made an indexing attachment for my Hercus 260. It's an amalgamation of a few designs I saw on the web. The only "unique" part is the mounting bar for the indexing arm. This screws into the aluminium mount which screwed to the headstock. It must be removed to allow the side cover to be closed. Other than that part, this design could be applied to any lathe.
The dividing wheel gives me: 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 15, 17, 18, 21 & 24 divisions.
I included the facility to add a handle for thread tapping or single-point thread cutting to a shoulder. The square part of the mandrel is 14mm square. I opened up the tapered square hole in the bike crank with a file to fit the mandrel. The local bike shop gave me an old pedal. I removed the shank and I turned it down to 8mm. The hand-grip is just drilled to 8mm and bored at one end to clear the retaining nut and the other end to clear the hex on the shank.
Hopefully the pictures tell the story. I tried to place the pictures in chronological order, but no matter which way I arranged them in the "Manage Attachments" window they came out this way. At least they are all orientated the correct way. :rolleyes:
Now I just need to find a project to put it to use!
The dividing wheel gives me: 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 15, 17, 18, 21 & 24 divisions.
I included the facility to add a handle for thread tapping or single-point thread cutting to a shoulder. The square part of the mandrel is 14mm square. I opened up the tapered square hole in the bike crank with a file to fit the mandrel. The local bike shop gave me an old pedal. I removed the shank and I turned it down to 8mm. The hand-grip is just drilled to 8mm and bored at one end to clear the retaining nut and the other end to clear the hex on the shank.
Hopefully the pictures tell the story. I tried to place the pictures in chronological order, but no matter which way I arranged them in the "Manage Attachments" window they came out this way. At least they are all orientated the correct way. :rolleyes:
Now I just need to find a project to put it to use!