Search found 1076 matches

by ednisley
Thu Feb 21, 2019 11:57 pm
Forum: Tech Support
Topic: Multiple Super Weird Failure Modes
Replies: 3
Views: 822

Re: Multiple Super Weird Failure Modes

What happened? Sounds like the cartridge heater is failing, so replace it. While you're at it, replace the thermistor , because some of the symptoms implicate it, as well. They're not exactly consumables, but they don't last forever. It seems like you've been removing and replacing the nozzle on a ...
by ednisley
Thu Feb 21, 2019 3:54 pm
Forum: Tech Support
Topic: Is my RAMBo card finally giving up?
Replies: 2
Views: 560

Re: Is my RAMBo card finally giving up?

Octopi claims the serial connection went down. LED2 shows the extruder heater PID loop is running and LED3 shows the extruder fan is on: https://reprap.org/wiki/Rambo_v1.1 You just never noticed the blinkiness before … [grin] Because the extruder heater is still running, the firmware hasn't detecte...
by ednisley
Thu Feb 21, 2019 12:40 am
Forum: Printed Object Showcase
Topic: Temp Problem Hard to Fix
Replies: 7
Views: 1380

Re: Temp Problem Hard to Fix

run a pid cal when I set my starting height each time I switch? Assuming you swap entire hot ends (*), including their thermistor & heater, then you can calibrate each one, write down its PID values, manually set 'em with M301 when you install it, then use M500 to store 'em in EEPROM. set to 200C, ...
by ednisley
Wed Feb 20, 2019 7:33 pm
Forum: Printed Object Showcase
Topic: Temp Problem Hard to Fix
Replies: 7
Views: 1380

Re: Temp Problem Hard to Fix

Problem: Temperature fluctuation on the hotend +/- 7 degrees C when set in the controls. A little more extreme when printing (~+/- 15). Slow cycling like that indicates the hot end's PID loop coefficients don't match reality. Preheat the extruder to maybe 200 °C, run a PID calibration (M303), store...
by ednisley
Wed Jan 09, 2019 2:45 am
Forum: Tech Support
Topic: Hotbed suddenly stopped working
Replies: 1
Views: 465

Re: Hotbed suddenly stopped working

What am I missing? Rummage around here and you'll find platform heater failures galore, particularly on early M2s with 12 V platforms. The basic problem: too much current for the connectors. Pull each of these connections apart and check for charred connectors: PSU to RAMBo RAMBo to platform cable ...
by ednisley
Fri Dec 28, 2018 12:09 am
Forum: Tech Support
Topic: Extruder Starting off Bed
Replies: 3
Views: 662

Re: Extruder Starting off Bed

just moved it to my home office Perhaps a switch got whacked out of alignment. Verify the home switches by manually homing each axis using whatever printer control program you're using. I use Pronterface, but assume S3D lets you do the same thing. If an axis don't move in the way it should, verify ...
by ednisley
Fri Dec 07, 2018 3:58 pm
Forum: Tech Support
Topic: max speed of M2
Replies: 3
Views: 960

Re: max speed of M2

what is the max speed that the machine will try and print There's a limit in Configuration.h : https://github.com/MarlinFirmware/Marlin/blob/1.1.x/Marlin/Configuration.h #define DEFAULT_MAX_FEEDRATE { 300, 300, 5, 25 } Multiply the X and Y values by 60 to get mm/min, as used in G-Code: 30000 mm/min...
by ednisley
Sat Dec 01, 2018 2:25 pm
Forum: Tech Support
Topic: Feed motor
Replies: 2
Views: 683

Re: Feed motor

turtleman wrote:
Sat Dec 01, 2018 1:56 am
Is their a fuse somewhere that I need to change?
The firmware won't drive the motor unless the hot end is at the proper temperature.

Check that first …
by ednisley
Tue Nov 27, 2018 5:02 pm
Forum: Tech Support
Topic: Z axis problem. Is this a problem with the motor or the driver?
Replies: 19
Views: 2649

Re: Z axis problem. Is this a problem with the motor or the driver?

Any analysis of the data from my previous posts? You've been doing a lot of fiddling with the machinery as part of finding the extruder problem, so: did you, at any time, even once , unplug / disconnect the Z axis motor when the power was turned on? If so, that likely killed a driver transistor in ...
by ednisley
Tue Nov 27, 2018 1:45 pm
Forum: Tech Support
Topic: Z axis problem. Is this a problem with the motor or the driver?
Replies: 19
Views: 2649

Re: Z axis problem. Is this a problem with the motor or the driver?

I took the bottom of the motor apart No sugarcoating: disassembling a stepper demagnetizes the rotor. You must buy a new Z-axis motor. The motor is assembled with the rotor demagnetized, then it's magnetized in place. When you take it apart, the rotor smacks into the stator, which creates a localiz...