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Mainboard Upgrade: How to handle heatbed thermocouple connectors

by mb18m039

Hi Folks!

I´m currently trying to breathe some new life into an old Duplicator 4S which includes an upgrade to an SKR 1.3 Board. The only challenge I´m currently facing is the connection of the Heatbed. The D4S´s heatbed has a total of 6 connectors - 2 power supply connectors and 4 appear to be for the thermocouple. I joined the 3D-printing party fairly late (2018), so all I have ever seen were two connectors for the heatbed thermocouple. That's why I wanted to ask what the two additional ones were for and if anyone knows of an easy way to connect the thermocouple to my beard, which offers only two connectors for the heatbed thermal measurement?

EDIT:
Ok, so according to the following link two of the connectors are common grounds. Does that mean I can simply connect those to a ground pin on my board?https://beta.ivc.no/wiki/index.php/MakerBot_Replicator_1_Upgrades_and_Repairs#Heated_build_platform_connector_replacement

Best regards
Thomas

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Cura builds cause Z axis to try to bottom out HBP

by Fogbankminis

Hi folks,
I have acquired a D4s and am frustrated with using replicatorG as it seems capable of only dealing with single part STLs.
I have tried Cura to combine them (which is does easy) but the gcode builds cause the Z axis to go to bottom and then it continues to try to wind down even when it hits bottom. No such issues if I generate gcode with replicator G other than it fails to build about 50% of anything I attempt. And always lots of filament bursting out.

Any ideas? I'm new to 3dprinters. At the moment I'm ready to return the printer, its second hand but the previous owner couldn't get it to work consistently.

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X axis error

by nickaprahamian

My x axis motor sometimes works and most times doesnt work but there is always a continual base as to where it does not work. I dont know how to fix it... if you can help, I would really appreciate it!
P.S. the deadzone is in the front left side about 3.5 inches into the middle all the way to the left.

Help
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Error

by dotpower

Hello!
Any idea what is causing this error on my Duplicator 4S?

https://www.youtube.com/watch?v=m-dvGj1UcSA

Greetings Thomas

Wanhao_Duplicator_4s
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Dual Extrrusion with Per-Layer Temperature Setpoints

by TPrime3797

Hello everyone.
Trying to perfect my dual printing. The model I'm trying to make has a section near the top that's a different colour than the rest. By default the printer wants to heat up both extruders at the beginning. That results in one extruder idling hot for an extended period, which is bad and ends up ruining the print when it tries to do it's part with 'baked' filament. So s3d has a 'per-layer temperature setpoint' setting which I figured would be exactly what I need. It works great if I make the temperature changes at the beginning of the print, but all the changes at the end, where I need them, are ignored. Does anyone have any idea what the problem might be?
Thank you

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