MartinH

Use one of the 2 homing options that use pre heat, this will then use the pre raise as roko mentioned. Set the pre heat temp to 0 to disable heating.

in Raising Z axis Auto home. G28 Comment by MartinH June 2018

As you are moving over from marlin i would recomend uploading the eeprom clear sketch from arduino examples menu then re uploading the repetier firmware to clear out any unwanted values stored in the eeprom. Also Repetier host has a built in eeprom …

in New to Repetier Firmware and having E-Step issues Comment by MartinH May 2018

The main difference is the new driver have to be fitted rotated 180deg from the A4988,(so the pot is opposite end) The DRV8825s with the 3 micro stepping jumpers fitted will have 1/32 microstepping so you will need to double your steps/mm in config …

in Change A4988 stepper driver by DRV8825 ones. Comment by MartinH May 2018

Also can you tell us what size you have for Xmax and Ymax

in Z-probe autoleveling problem Comment by MartinH May 2018

Recommended voltage range: 0.8 to 1.6 V. This corresponds to a theoretical peak motor current of 0.73 - 1.46 A, equation: I = k U with k = 0.91 A / V. 1.6 is max recomended and should be enough. With the motors rocking back and forth i would suspect…

in Extruder won't extrude but is ticking? Comment by MartinH May 2018

What drivers are you using? What microstepping? You have some large numbers in your config regarding steps/mm and max feedrate, maybe try reducing the max E feedrate see if any different.

in Extruder won't extrude but is ticking? Comment by MartinH May 2018

Change endstop type to electronic to disable the arduino's pull-up resistor.

in bltouch clone , delta printer, z-min end-stop trigger Comment by MartinH May 2018

In firmware tool,mechanics tab.If you select one of the homing option with the preheat,it then allows you to set the X Y coords where it will go for homing Z, set preheat temp to 0 so it does not bother heating the nozzle. I also set pre raise Z=al…

in Z-Home Position? Comment by MartinH May 2018

You need to enable 'distortion correction' in the 'General' tab on the firmware configuration tool.

in Help. G33 command Comment by MartinH May 2018

The mega boards have a 500mA 5volt regulator fitted as standard, fitting a full graphic smart display will run this regulator close to its max rating and can cause low voltage on the 5 volts rail, or even a regulator failure.

in 1.0.2 not working on my Mega 2560 and RAMPS. Comment by MartinH May 2018

With the Y endstop at the back of the bed, that is a Ymin endstop. So X0 Y0 puts the nozzle at the Front left corner of the bed

in Both Z axis steppers are moving the oposite direction Comment by MartinH May 2018

Just a idea but wouldn't setting 'Z min pos' to say, -5 in eeprom allow Z to go negative.

in Autobedlevel and Z homing setup with Inductive Proximity NPN Comment by MartinH May 2018

I am experimenting with the new cura 3.3.1 atm, seems to be working well, just have to sort out a bit of under extrusion after layer change,i think its the fact they now do the un retraction in mm cubed rather than just mm. Will test further tomorro…

in Thin Wall settings ?? Comment by MartinH April 2018

slic3r is not compatible with the 3dlabs single shell designs, however cura engine works great.

in Thin Wall settings ?? Comment by MartinH April 2018

Normally this fan is connected to permanent 12 volt so it is on all the time.

in Hotend cooling fan not turning on when heating extruder Comment by MartinH April 2018

Attached is my config, had to zip it to upload it. Main things to note are homing method, use one with pre-heat option so you can set the x y coords for Z homeing. Allso, grid locations for bed probing.