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Gallery, Projects and General => Gallery => Topic started by: boatmadman on October 11, 2009, 02:30:26 PM

Title: Home build dividing head.
Post by: boatmadman on October 11, 2009, 02:30:26 PM

A few years ago, I decided I wanted to try and cut some gears, for an idea I had, so, I needed a dividing head!

I already had a peatol lathe, and found plans for a div head by Tony Jeffrie.

At the time I had access to a mill at work, but since then the 'elf & safety police have locked down all the machine tools, so now I am buying one for myself.

So, off I set and ended up with what you see below, along with some gears I cut with 0.5 mod cutters.

Sorry, there are no interim pics to show.


Ian

Title: Re: Home build dividing head.
Post by: sbwhart on October 11, 2009, 02:44:11 PM

Hi Ian

Thats a nice bit of tool making :thumbup: did you cut the worm yourself ?.

Cheers

Stew

Title: Re: Home build dividing head.
Post by: spuddevans on October 11, 2009, 02:45:24 PM

That's a nice piece of work there Ian  :clap: :clap:

Tim

Title: Re: Home build dividing head.
Post by: boatmadman on October 11, 2009, 04:19:03 PM

No, I didnt cut the worm drive - wouldnt know where to start with that!

Ian

Title: Re: Home build dividing head.
Post by: CrewCab on October 11, 2009, 04:56:46 PM

Nice work, though I don't envy you drilling all those holes Ian  :scratch:

CC  :beer:

Title: Re: Home build dividing head.
Post by: boatmadman on October 11, 2009, 05:06:53 PM

Drilling those holes was  a real P I T A, and, marking out the protractor wasn't much better.

Ian

Title: Re: Home build dividing head.
Post by: CrewCab on October 11, 2009, 05:13:26 PM

Quote from: boatmadman on October 11, 2009, 05:06:53 PM

marking out the protractor wasn't much better.

Off topic a little really ........... I've been meaning to ask for ages about methods for marking dials etc, as your protractor Ian  :dremel:

CC

Title: Re: Home build dividing head.
Post by: boatmadman on October 11, 2009, 05:29:12 PM

Here is the web link for the dividing head. About 3/4 way down there is the description of how to mark out the protractor.

http://www.jeffree.co.uk/pages/divheadmk1.h
Ian

Title: Re: Home build dividing head.
Post by: Bluechip on October 11, 2009, 05:41:38 PM

Ian..

Link not quite right, got truncated I think..

try this,  ..


http://www.jeffree.co.uk/pages/divheadmk1.html

(Got the discs with my RT, still don't know how to use them! Bought Harold Halls book on dividing, no lights come on so far.
Maybe if I had to use them in anger .. not had need to yet.)


Dave BC

Title: Re: Home build dividing head.
Post by: sorveltaja on October 11, 2009, 06:03:59 PM

That's great work, boatmadman!

I've had dividing head on my todo-list for a long time, but that wormy thing has kept me away from it, as I'm not sure if I can make it properly. But someday..

Title: Re: Home build dividing head.
Post by: CrewCab on October 12, 2009, 02:05:56 PM

Thanks guys  :thumbup:

as quoted "This is a very tedious process, but the reward is a nicely marked out 360 degree protractor." steady job but a nice result  :thumbup:

CC

Title: Re: Home build dividing head.
Post by: bogstandard on October 12, 2009, 02:13:28 PM

Sorveltaja,

It is that wormy thing that is one of the easiest gear sets to make.

At a push you can get a length of trapezoid thread in the diameter you want, use one piece for the drive and another piece to make a cutter.

It is very well documented on the web.

Bogs