Search found 18 matches

by akku3D
Tue Oct 24, 2017 7:54 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

hello slippyr4, I have my printer now finished and it works almost perfectly. I have still one problem , with which I have the firmware in suspicion. Maybe you can help me here too. When heating up the extruder, the heating bed is switched on at exactly 50° C. If the extruder temperature falls below...
by akku3D
Mon Oct 23, 2017 1:48 pm
Forum: Hardware
Topic: thermistor position on the mk42 clone
Replies: 3
Views: 1511

thermistor position on the mk42 clone

Hello,

I have got a MK42 heated bed for ma Prusa clone.
What is the best position for the thermistor?
In the middle of the heating bed are two holes, of which I only use one to mount on the sled.
Dies it make sense to put the thermistor in the other hole and fill it with thermal paste?
by akku3D
Sat Oct 21, 2017 11:14 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

So, I've changed my x-carriage and x-endstop holders a bit to actually get up to 0. But unfortunately this has not brought any success. The xyz calibration has still not worked. Then I have looked, which differente I still have to the original and found that I have the X and the Y endstop inverted i...
by akku3D
Fri Oct 20, 2017 9:27 am
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

Unfortunately, I can not move my x-carriage to the left. Otherwise, it will come to the frame.
Is there another option?
by akku3D
Fri Oct 20, 2017 7:33 am
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

at G28 XY both end stops are reached. The Nozzle is then over X2 Y-2.2. In the firmware I have the following registered: #define MANUAL_X_HOME_POS 2 // 0 akku #define MANUAL_Y_HOME_POS -2.2 #define MANUAL_Z_HOME_POS 0.15 // Travel limits after homing #define X_MAX_POS 250 #define X_MIN_POS 2 #define...
by akku3D
Thu Oct 19, 2017 8:59 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

here are the results: >>> M45 V2 SENDING:M45 V2 Iteration: 1 correction angles: -0.03326, 0.26167 X vector, adjusted: 1.00000, 0.00058 Y vector, adjusted: 0.00457, 1.00001 center, adjusted: -7.46308, -0.64254 Difference after correction: point #0measured: (106.09375, -1.65938); measured-corrected: (...
by akku3D
Thu Oct 19, 2017 5:45 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

I need to bring my problem up again. XYZ calibration runs correctly in the first step. All four calibration points are found while the first round. Then X moves left to the end stop and from there about 2 mm to the right. However, this is 10 - 12 mm too little to find the left front point for the se...
by akku3D
Mon Oct 16, 2017 8:09 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

Sorry, quite I have not yet understood what causes the change.
For me it is not Z, which is in the wrong position, but X is too far left?
by akku3D
Mon Oct 16, 2017 6:01 pm
Forum: Software
Topic: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds
Replies: 196
Views: 69852

Re: Prusa firmware for RAMPS Prusa i3 clones with MK42 beds

just to make no mistake:
I have a separate stepper driver for each of the two Z motors.
One is connected to the ramps at Z, the other to E1.

In this configuration I have to change the code as described?