Topics created by wingtip

@Phaedrux
If it only has to be temporary then I will use the ribbon and bypass the cable chains I guess.
I will try to find time to do that this weekend. Then I will try to get the necessary Gcode added.

Glad you got it sorted out. Those intermittent connection issues are hard to pin down.

@wingtip said in 3d Benchy Question:

if i pause and have to temp remove the fans, can i just turn off the heater, then turn it back on and resume once its up to temp?

Yes. You can.

Well if you really wanted to customize you could create a folder within the macros folder and then create a set of macros for whatever baby stepping amounts you want using M290 commands. Then when that folder is open on the paneldue it's basically a touch pad.

https://duet3d.dozuki.com/Wiki/Gcode#Section_M290_Baby_stepping

Yes it can all be a bit overwhelming.

Here's what I would use for homeall.

; homeall.g G91 ; relative positioning G1 H2 Z5 F6000 ; lift Z relative to current position G1 H1 X-805 Y-505 F800 ; move quickly to X and Y axis endstops and stop there (first pass) G1 X5 Y5 F1800 ; go back a few mm G1 H1 X-10 Y-10 F360 ; move slowly to X and Y axis endstops once more (second pass) G90 ; absolute positioning G1 X320 Y220 F4000 ; moves probe to approximate bed center. G30 ; home Z by probing the bed G1 X0 Y0 Z5 F4000 ; return to origin position

Removed the H2 from the XY moves.
Removed the G92 to force a position. The position will be determined by the M208 minima value set in config.g
Changed the probe position to match your homez.

In bed.g you need to specify two points close to the lead screws to probe and a command in config.g to tell the firmware where those lead screws are located.

Example here shows what you need.

https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors#Section_Example_for_2_motors

Final bed.g would look something like this (with your actual positions)

; bed.g M561 ; clear any bed transforms G28 ; home all G30 P0 X20 Y100 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X180 Y100 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors G1 X320 Y220 F4000 ; moves probe to approximate bed center. G30 ; probe the bed G29 ; create a mesh grid G1 X0 Y0 Z5 F4000 ; return to origin position

@wingtip said in Another mesh bed leveling thread...:

And still wondering what spacing you guys suggest on the probing. Currently i have it set to 20mm. On a bed thats nearly 800x500 that could be a lot of probes??

You're limited to 441 points, so if you set a very low spacing in your m557 command and send it in the gcode console (like 1mm) it will tell you what your minimum spacing would be to stay within the limit.

It's also possible to use number of points to probe and it will figure out the spacing to get that number of points.

M557 X15:630 Y15:415 P10 for example will probe a 10x10 grid.

I would like to add that using a fuse that is rated at a much higher draw then what you normally use (and using a higher rated fast blow in order to not trip it) is not recommended for obvious reasons.

we're here to help!

@wingtip said in Home Y wont home...:

That solved it. Thank you sir!

Now to decide whether to configure gcode for the bl touch or build the bed first... id rather test it without the bed so i dont smash anything lol.

Glad I could help.

Frederick

Problem Solved:

Went to take a pic and was verifying the wiring and noticed on one of the breakout boards i had two wires backwards... Switch now works as it's suppose to...

Once again i just need to take a break now and then and stop spending 10 hours at a time working on this thing frying my old brain hahaha.

Thank you guys... Now i just need to figure a way to tighten the carriage belt without redesigning and reprinting some major parts... then build the bed, then start printing....

@wingtip said in Motors working then chatter before and after homing...:

Now have the two z motors working (two center wires were crossed) but i have no bed built yet and no endstops plugged in or probe setup so i may as well work on finishing the probe setup ...... Its getting close!!!

You will probably want to include some sort of bed in your printer design.

Printing in mid-air has proven to be less than satisfactory unless you only wish to print interesting tangles of filament.

😉

Frederick

@wesc I believe these to be my current config... id have to double check at a later time but these were my backup files so i think i had updated them when i last was messing with it... im still building/ modelling the printer so its not finished.

homeall.g config.g