DUET 3 - BL Touch : Error Enabling End-stops

callielli

@Phaedrux said in DUET 3 - BL Touch : Error Enabling End-stops:

G1 X Y

Thanks for your help, I knew I was missing something that was likely basic knowledge, I still need to become more fluent reading this stuff! Learning slowly.

From your response, I think I need to:

STEP 1
Define Z Endstops under M574 in config.g

M574 Z1 S0 P"!io7.in" ; configure active-low endstop for low end on X via pin !io7.in

Does this look right? A BL touch is active low when triggered, I think?

STEP 2
Edit HOMEZ AND HOMEALL to move the probe in to position and activate probing procedure via G30?

G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed

Am I on the right track?

Phaedrux

As for the endstop, you only need to define one if you actually have an endstop you want to use on the z axis. If you just want to use the probe, you just need to change the homing files to use G30.

callielli

@callielli said in DUET 3 - BL Touch : Error Enabling End-stops:

G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed

OK, thanks.

So HOMEALL

G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X865 Y565 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y-5 F6000 ; go back a few mm
G1 H1 X865 Y565 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed
G90 ; absolute positioning

and

HOMEZ

G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed

and no changes to Config.g

Correct?

Phaedrux

@callielli said in DUET 3 - BL Touch : Error Enabling End-stops:

G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed
G90 ; absolute positioning

Slight change. Move the G90 for absolute positioning to before the G1 X430 Y280 otherwise those moves will be relative to the endstop position, which might work, but not exactly what you want to do.

callielli

Roger!

So HOMEALL

G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X865 Y565 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y-5 F6000 ; go back a few mm
G1 H1 X865 Y565 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed

and

HOMEZ

G90 ; absolute positioning
G1 X430 Y280 ;move probe to centre of bed
G30 ;probe bed

Phaedrux

Now you should follow this to test and calibrate your probe.

https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

callielli

@Phaedrux

Yep - I will do that now. Cheers.

callielli

@Phaedrux

P.S. How do I mark this as solved?

Or is that something you guys do?

Phaedrux

That sounds like a large printer.

You can mark it solved by first clicking on topic tools and choosing ask as a question, and then topic tools again to mark as solved.

callielli

@Phaedrux

She's a big one, that's for sure.

Two Bondtech QRs' a huge ATP5 bed and some serious current should hopefully see large scale prototypes be turned around quickly!

Phaedrux

https://forum.duet3d.com/category/10/my-duet-controlled-machine

In case you feel like showing off.

callielli

Ahh - nice one! I had no idea this section existed.

Will be sure to post when if I find the time!

It seems my penchant for hobbies that require a steep learning curve remains strong. haha.

ozgiac

Its a development printer, until it ready would like to leave any pics, specs etc in house.