help with end stop and firmware

[vonhellsing]

Hi budies,

I love droplit but i live in one country that's insane buy some outside, we pay around 70% of import taxes (tax over tax over shipping) and price gone to sky, its like paid 2,3x droplit price (printer price+shipping+60% import taxes+27% iva+9% IOF tax (its like if you paid outside with credit card my gov take more 9%), and my pocket don't have this size .

what i did, download droplit files in github, cut some parts, make some changes in Z structure, make some printable parts, include LM8uu and linear rods, put stepmotor in center, if work i'll publish here to seemecnc comunity.

http://blog.protoneer.co.nz/arduino-cnc ... bly-guide/ (really cheap gbrl)

1st question : one friend give me a protoneer GBRL+Uno+Pololu's drivers (cheap and nice) protoneer using end stop soldering in COM and NO, (signal and ground ) i see in your manual that u using COM (signal) and NC.

if i using COM and Ground i'll need make some configuration in firmware or will work ?

2nd question:

If i using linear rods and grow high print size i'll need made changes in firmware ?

Firmware changes its my fear, everytime when i see arduino code my soul frozen kkkkk .


If is possible help me i'll be happy and if no (no problem) i know thats this forum its for customers. i'll understand.

Cheers


Angelini

[Nylocke]

COM is common. NC is normally closed, NO is normally open. For RepRap firmwares (and I'd assume GRBL since everything has derived from that in some way) there is a setting to invert logic of the end stops. If it's true then the end stops have COM and NO used, if it's false then COM and NC are used.

[vonhellsing]

HI! Thx!!

I'm still fighting with the Protoneer GBRL, but I think the problem is to find where to place the NC (ground), the COM this easy Z + pin.

[img]http://i0.wp.com/blog.protoneer.co.nz/w ... 024%2C1024[/img]

My 1st config

EG: if i connect COM in Z+ and NC on other Z+ pin and pull endstop dont show nothing on UniversalGcodeSender

My 2nd:

Same. if i pull end-stop dont show nothing in UnversalGcodeSender

Any idea ?

cheers!

Angelini

[Nylocke]

http://blog.protoneer.co.nz/arduino-cnc-shield/

Limit switch pins have been doubled up so that each axis has a “Top/+” and “Bottom/-“. This makes it easier to install two limit switches for each axis. (For use with a normally open switch)

http://blog.protoneer.co.nz/arduino-cnc ... /#EndStops

their instructions are a bunch of jumbled hodge podge from each version. Your board doesn't have the jumper to configure the endstops. Looks like yours is always NO. I can't figure out what each pin of Z+ is, but I'd assume its probably a signal pin and a ground pin.

[vonhellsing]

thx!!

If i pull microswitch, UniversalGcodesender need show some in console ? in marlin we have a command to see if is trigged or open, gbrl have same command ?

Cheers!

angelini