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3d printer - Leapfrog creatr conversion

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BillTodd:
I may be premature but, this is as done as I can get it, until the touch sensor arrives.

BillTodd:
A sleek Biqu microprobe arrived promising +/- 3um accuracy ....



While measuring the logic output, I found it  has a linear range of about 200um thus making it entirely reliant on the logic threshold of the I/O port -   :bugeye:

I cannot seem to get Marlin to use the probe as a Homing device , which is what i bought it for , as i don't really need to level the bed every print and only want to be able to change surfaces (which will vary in height) .


BillTodd:
 I left it at the end of the last year working OK ,but, when I returned to the other day my resin printed stepper motor end-plates had distorted and jammed due to creep.

So, as a quick fix ,I redesigned it to use the stepper motor with its metal end-plates. After several failures, involving temperature resin selection and weak supports,  i finally have it vack together

Next is to design a new extruder with a different (lighter) motor with a mechanism to allow the hot-end / filament guide to be swapped out (with the long-term aim to have a tool changer)

awemawson:
Slightly off topic, but in the latest ”Project Binky” episode they are 3D printing solder to form tracks on a PCB. Amazing !

BillTodd:
I heard about that, I'll chase it down.

I made some frog-legs (a stand for the printer) and modified the Lilly-Pad controller.

By adding M117 Ext:{first_layer_print_min[0]},{first_layer_print_min[1]},{first_layer_print_max[0]},{first_layer_print_max[1]}  to the custom gcode in Prusa slicer , I can automatically select which heaters to use on the segmented bed

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