A New Build

[Robertmr]

I need a little help. I keep looking at the GT2 belts and pulleys and keep thinking the teeth are very small not much grip, the teeth are only 0.762 mm tall and 6 mm wide the other belt I'm looking at is the XL which has a taller tooth of 1.3 mm 10 mm wide but the pulleys have a flange about 36mm diameter the GT2 pulley have a flange about 16mm diameter, so what would you use if you where building a laser today? Or even tell me about another type belt and where to get it?
Next is the stepper motors, I would like to use Nema 23 what size can I use 1.8 deg steps, or do you need 0.9 deg steps? I want to use this for engrave photos so will be using a AWC608c or AWC708c but I still have to look to see what the difference is.
Mike.

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[Unreatrap]

Hello !you can find many accessories shop on ebay and aliexpress. and it is very convenient.

[Edwardrib]

In the UK. most common is Gt2 or XL. I did find some HTD but he had no 20 tooth pulleys only 30, This is why I have posted here asking for advice. Only looking for UK supplier.