3D printing - 8mm sprocket help needed

[Shakey]

What's up with the printer?

[limpet]

It was the left/right (x/y?) drive belt sprocket slipping, the head just kept working its way towards the left every time there was a quick movement.
I took it off and tried some loctite 270 on it but no good, today I tried superglue and its been great. I`ve printed some fairly big pieces (not robot related) and its been spot on all day.
Printed that much today I`ve now run out of white abs! Just ordered some yellow abs and a reel of grey pla to see what thats like.
I`ll try a sprocket again later.

[Shakey]

Ah right, I've had a slippy belt before but that was due to a tensioner working itself loose thankfully.

PLA is nice, I've just got my heated bed running along with printing PLA and It's like my printer has never even heard the word warping.

[limpet]

I'm still not getting anywhere, I think there may also be an issue with shrinkage of the ABS as the measurements need to be so precise.
Its probably going to be easier to make timing pulleys and use a belt instead which will probably work better anyway.

[Rapidrory]

I'm looking at using 'toy drive belts' off ebay (glorified slightly stiff rubber bands) for 4wd. They're much simpler to use and cheaper than timing belts, and tbh should be just as effective most of the time...

[limpet]

This is to power the arena pit though so weight is not an issue but accuracy/non-slippage is, I tried using PU drive belt with pulleys but the slightest slip and it threw the lifting mechanism out of alignment. Chain would be fine but I`d have to buy the 4 sprockets I need, also I`d have to modify other parts (printing them would have overcome that).
Timing belt is the way forward for this I think but as a drive system on a bot then rubber belts would be just as good.