My 1st Hybrid Steel/Ally (1150 x 850 work area) (comments/advice please)

[lebies]

No. this is nema 34 stepper . You need Nema 24 stepper 3Nm 4.2 A and look for the Low Inductance. I mean if you can not source that exact one below, which most people here use with the AM822 drivers or similar.




That in case you decide to move the gantry with 2 motors which i recommend personally. Otherwise you will need to investigate Low inductance nema 34 motor which is not easy to come by at all. In that case you can look what motor they sell at http://www.cncrouterparts.com/960-oz...tor-p-112.html. its not so easy to source such motors as one may suppose.Read more here why it matters. But may be some one here can enlighten me which China guy sell them. Its good to know.

Thanks,

Either I'll go 2 motors (NEMA23 3Nm my preference at the mo as well) but I'm also looking into going with belt & pulley on the y-axis, using 1 motor. Lots of advantages, just have to mess with different configs. i.e. these options (tensioners not included - yet):



Where 1 & 2 are single belt and 2 & 3 are 2 belts, 1 to each side from the center. I'll do the calcs and maybe present for comments.

I'm moving house at the mo, so will only really be online again in about a weeks time from Thursday.

Thanks so far for all your comments.

[EddyCurrent]

This might be worth reading, there's also a belt length calculator link in there.
http://www.mycncuk.com/threads/5146-...elt+calculator

[lebies]

This might be worth reading, there's also a belt length calculator link in there.
http://www.mycncuk.com/threads/5146-...elt+calculator

Great! Thanks Eddy.