about to build my first CNC machine

[Clive S]

well , i gotta first thank all these peoples who build a wealth of information for people like me trying to get understanding in cnc

Welcome to the forum CHIphload you have come to the right place to find all the info you need your second option is the way to go, start by putting some drawings up to get feed back sketchup, Fusion360 are OK there are plenty of free cad packages around just do a search on the forum.

Please do not buy any electronics (especially kits) motors, screws etc until you have a design almost built.

When you are ready to start, start a build log to keep all the questions in one place.

Good luck with your build.

[CHIpHload]

Please do not buy any electronics (especially kits) motors, screws etc until you have a design almost built.

When you are ready to start, start a build log to keep all the questions in one place.

Good luck with your build.

thanks Clive , yeah, not buying electronics just yet, i do want to order screws, rails and blocks as soon as i can, would like them here before i start build slightly, unsure on pulley requirement re screw length. i am thinking would be better "FOR ME" with my nursery status in cnc , to actually build , then using a spring scale AND torque wrench(if i knew what size wrench) i could see what is required to turn ballscrews and move gantry

[Clive S]

thanks Clive , yeah, not buying electronics just yet, i do want to order screws, rails and blocks as soon as i can, would like them here before i start build slightly, unsure on pulley requirement re screw length. i am thinking would be better "FOR ME" with my nursery status in cnc , to actually build , then using a spring scale AND torque wrench(if i knew what size wrench) i could see what is required to turn ballscrews and move gantry

Well I would still get the designed done first as it could save you a lot of dosh if you buy the wrong bits.

nema 23 motors are the norm for this size of machine (low inductance) and 1610 screws x and y 1605 for z

[CHIpHload]

1610 screws x and y 1605 for z

little experience here though i was thinking i might need 2510 ballscrews for X , though now i think 2010 suitable , i would have liked the resolution 2005 could give but thinking that might require to high RPM, i suppose some further plans need drawing up then i will take your sound advice for build log with questions in one place. gotta think more which direction i'm heading, just that i had almost been set to start ordering ballscrews & rail for option 1, though the more thinking "do i want to do this seriously?" option 2 seems more sensible . i have not looked at much depth into smaller precision aluminium mill type machine . the thoughts of coolant all over the place , or bits breaking an dinging the window through. yep back to the library for me

[CHIpHload]

if any moderator could be so kind to delete this profile , as i can't seem to see an option to delete . THANKS