X2 belt drive conversion

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raynerd:
Hope you don`t mind me posting a pic, not trying to hijack your thread :whip:

I`ve just bored the piece to size, and taken down the diameter to form the pully section and I suppose the shaft area. Don`t know where to go from here.... pully sections? I couldn`t have done it without your pics and your post....I really appreciate it, cheers

Chris

spuddevans:

--- Quote from: craynerd on May 24, 2009, 07:01:43 PM ---Hope you don`t mind me posting a pic, not trying to hijack your thread :whip:
--- End quote ---
Feel free to add whatever you want, or even start a build thread yourself :thumbup:

--- Quote ---I`ve just bored the piece to size, and taken down the diameter to form the pully section and I suppose the shaft area. Don`t know where to go from here.... pully sections?
--- End quote ---

The next step that I did was to get the outer sections of the two V pulleys to size. Then there's the dreaded key-way (or is it key-set?) and the shaping of the inside of the V sections.

Those are my next steps.

Tim

spuddevans:
So I started today by working on the keyway (ok people, start your screaming :lol:) I re-ground the Hss bit to be more the profile of a parting tool on it's side. This worked a bit better than previously but I found a bit more success with using a file gripped in the QC toolpost

To make things a bit easier, I released the saddle so it would slide by hand rather than by winding the handle back and forth, and then just pushed the saddle to and fro while advancing the cross-slide by about 0.10-0.25mm each time.

I then turned to the V parts of the pulley, as mentioned before I couldn't set my compound to the required angle, I decided to grind up a form tool, and here it is.

After grinding the bit up I found out that I had accidently ground it up to the exact size needed for the V-belt. :headbang: ( I had thought that I would plunge it in and then move the bit sideways to get the size needed) The only thing I would do different if I did again would be to use a 5/16" Hss tool blank instead of a 3/8" as it was a bit tight cutting the 2nd (the smaller one). I used the larger size of toolbit to try to reduce chatter.

So I very gently and slowly inched (or should that be millimetered :scratch: ) the tool into the workpiece. I started off in the higher gear but the chatter kept kicking in the safety overload detector thingy in the C2 and it kept cutting the power, so I used the lower gear. The tool produced a lot of fine shavings.

And after that I repositioned and did the same again and ended up with this,

And that's as far as I got today, next I gotta start on the smaller pulley.

I may have to deepen the keyway a bit as well.

Tim

sbwhart:
Well done that man.

:clap: :clap: :clap:

Nothing wrong with methods that work :thumbup:

Cheers

Stew

Darren:
That's a neat idea with the file...looking good there Tim :clap:

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