Drive pulley size, Y drive redesign

[threedee]

Recently i learned that GT2 pulleys are tricky in my case.
I need to get a pulley that is 40teeth/10mm wide belt/8mm bore. And i cant, for the life of me, find one.
It is either gonna be 6mm wide belt or 5mm bore... Starting to pull my hair out (whats left of it anyway).
I dont know anyone with a small lathe to bore it out, no point going back to 6mm belts as machine is supposed to be fast (not a 3d printer, that crawl.).

Its a "pick 2" triangle situation. Gah.

Thanks for the drawing, btw, thats all i needed - an approximation.
Since shaft center runs about 35mm above "floor" i can stick in whatever doesnt exceed 55-60mm in diameter.

[Lee Roberts]

No problem,

Is this not the perfect match for what your looking for: https://reprapworld.co.uk/products/...GT2 pulley (40 teeth / 9 mm belt / 8 mm ID)

£8.20 all in but only 19 in stock so you better be quick lol

And you do know someone with a lathe who can bore things for you, you have hundreds of members on this forum with lathes ready to help other members for a little bit of bear money, just put a RFQ up when you need one, see link:

Projects, Jobs & Requests
Do you need a part making, are you looking to start a project, please make your request for a quote in here.

[Voicecoil]

These are the guys I get my pulleys from:

https://www.beltingonline.com/40-too...h70ar358nm5ci3

Maybe not the absolute cheapest but service and quality is spot on. If you need to calculate belt lengths etc. go here:

http://www.hpcgears.com/n/left_menu/calc/calc.php

[threedee]

What is AT5 pulley ? Are they GT2 with different naming convention ?

[Voicecoil]

What is AT5 pulley ? Are they GT2 with different naming convention ?

Sorry I gave you a link I had stored - Beltingonline do a big range of different types of belt/pulleys and do give accurate dimensions and will bore to order so I thought they might be able to help. AT5 is a larger tooth pitch (5mm vs 2mm) than GT2 and I was advised that they're about the best for backlash at a sensible price. But with the larger tooth pitch, for the same number of teeth they'll be propotionately bigger diameter so you might have fit problems - and if the other pulley in the system is GT2 then you'd obviously have to change both.

[hanermo2]

Anyone can bore any pulley to any size.
Usually, UK suppliers charge 2-3 for boring to whatever.

Generally,
*You* cant get better or equivalent for same or less money, and typically end up paying a lot more for it.

Likewise;
We, or some of us in the industry,
make 5 axis parts for 10$ an hour, qty 1, or 2, and are very sure to do QC on their critical dims.
We have to do make-up parts, so we get the next 2000 part order at reasonable pricing.