Warco WM16 Conversion

**birchy** · 22-03-2011

Hmmmm, they're expensive. Maybe I should buy a dividing head (was gonna get one anyway) and make them myself? Where can I find specifications for such things?

**Jonathan** · 22-03-2011

Originally Posted by birchy

Hmmmm, they're expensive. Maybe I should buy a dividing head (was gonna get one anyway) and make them myself? Where can I find specifications for such things?

They certainly are. I used a vertex 6" rotary table and put a stepper motor on it.

Can cut the pulleys quite quickly if you grind a form tool and hold it in boring head, or just make a quick holder as it's not exactly complicated. I've posted a thread with more about it somewhere, including a program I wrote to mill the pulleys. My pulleys are XL so in the end I just ground a trapezium of the right dimensions on the end of a piece of 5/16" HSS from the lathe.

5mm Pitch

**birchy** · 23-03-2011

Isn't it ironic how I could do with a cnc mill to make the parts for my cnc mill? I know there's a load of timing pulleys dumped in a box at work. Will have a mooch through it when I get time. I certainly need to buy a rotary table or dividing head. Not really sure whether to get the Vertex HV6 rotary table or go the full hog and get the dividing head or just make my own rotary table with a standard industrial gearbox and indexing via a plate with suitably positioned holes.

I guess timing pulleys could also be made with a home ground broaching tool. First of all, I need to find me a pulley so I can decide the easiest way to copy the profile...

EDIT: B'jaysus, look what I found in me scrap bag. It's a 30 tooth with OD of 93.5mm and 30mm wide. Bit big though. Bummer. We have lots of them at work. Tooth to tooth is 10mm so I assume it's a 10mm pitch?