[Samtouyo]

Thanks all, for all the suggestions. Printer is now running veeeery well! Problem was excess play in the three drive belts (not much - but encoder & control circuitry is very sensitive to free play), and also some slack in the shafts.

I think I can recommend the L1800 (but early days yet) - if it is sold in your country?

Dear, can you explain a little how to solve the three drive belts excess?