Prusa i3 Extruder Failure February 19, 2017 06:48PM |
Registered: 7 years ago Posts: 27 |
Re: Prusa i3 Extruder Failure February 19, 2017 10:35PM |
Registered: 7 years ago Posts: 267 |
Re: Prusa i3 Extruder Failure February 19, 2017 11:49PM |
Registered: 7 years ago Posts: 27 |
Re: Prusa i3 Extruder Failure February 20, 2017 02:29AM |
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Re: Prusa i3 Extruder Failure February 20, 2017 06:21AM |
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Re: Prusa i3 Extruder Failure February 20, 2017 09:11PM |
Registered: 7 years ago Posts: 27 |
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obewan
Silly question, but did you get the hotend up to temperature when you tried the extruder,(motor wont move when cold)
Have you checked the hot end and throat are not blocked solid from when the fault happened?
Sorry if i am stating the obvious
Re: Prusa i3 Extruder Failure February 20, 2017 09:13PM |
Registered: 7 years ago Posts: 27 |
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scottybfg
Yeah ok, cant change the stepper driver out on it then. One thing I never liked about the all in one boards.
What firmware are you using and we will help out with changing the extruder motor pin for you
Re: Prusa i3 Extruder Failure February 20, 2017 10:04PM |
Registered: 7 years ago Posts: 267 |
#define E1_STEP_PIN #define E1_DIR_PIN #define E1_ENABLE_PIN #define E2_STEP_PIN #define E2_DIR_PIN #define E2_ENABLE_PIN
Re: Prusa i3 Extruder Failure February 20, 2017 11:12PM |
Registered: 7 years ago Posts: 27 |
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scottybfg
Im at work so cant do it right now, but have a go your self, doing is half the fun of this project and its how you learn.
What you need to do is swap the pin numbers for the 2 extrudes in the pins.h for your motherboard. there will be three numbers you need to swap, (think its E1 and E2 but could be something different, they come after X Y Z so should be easy to find)
#define E1_STEP_PIN #define E1_DIR_PIN #define E1_ENABLE_PIN #define E2_STEP_PIN #define E2_DIR_PIN #define E2_ENABLE_PINThanks for this. I'll aim to try it tomorrow after work myself. Until then, thank you.
so for the above example, replace the E2 numbers with the E1 numbers and put the E2 numbers next to E1
Like I said I'm happy to do it later, but have a try first as see how you go
Re: Prusa i3 Extruder Failure February 21, 2017 11:32PM |
Registered: 7 years ago Posts: 27 |
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Vgala9
Quote
scottybfg
Im at work so cant do it right now, but have a go your self, doing is half the fun of this project and its how you learn.
What you need to do is swap the pin numbers for the 2 extrudes in the pins.h for your motherboard. there will be three numbers you need to swap, (think its E1 and E2 but could be something different, they come after X Y Z so should be easy to find)
#define E1_STEP_PIN #define E1_DIR_PIN #define E1_ENABLE_PIN #define E2_STEP_PIN #define E2_DIR_PIN #define E2_ENABLE_PINThanks for this. I'll aim to try it tomorrow after work myself. Until then, thank you.
so for the above example, replace the E2 numbers with the E1 numbers and put the E2 numbers next to E1
Like I said I'm happy to do it later, but have a try first as see how you go
#define E0_STEP_PIN 34 //34 #define E0_DIR_PIN 35 //35 #define E0_ENABLE_PIN 33 //33 #define E1_STEP_PIN 37 //37 #define E1_DIR_PIN 40 //40 #define E1_ENABLE_PIN 36 //36
Re: Prusa i3 Extruder Failure February 22, 2017 12:11AM |
Registered: 7 years ago Posts: 267 |
Re: Prusa i3 Extruder Failure February 22, 2017 07:46PM |
Registered: 7 years ago Posts: 27 |
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scottybfg
You get +1 for being a mechanical engineer (I'm also a mechanical so understand your pain)
So to make the changes you can do it offline and save (always make a copy of the old file so you can roll back if you F it up), but you will need the control board plugged in to upload the compiled code. Do not have the printer connected in your host software (what you use to control the printer), its no issue if you forget, you will just get an error message. If you haven't already watch a quick youtube video on updating firmware, its simple once you get the hang of it.
As for the board, I had a look and you are using board 33 RAMPS 1.3 / 1.4 (Maybe double check that one, I've had a lot of numbers in my head today) This is found in the configuration.h file. Get use to looking at this one as this is where most the movement and auto bed leveling information is stored
Re: Prusa i3 Extruder Failure February 22, 2017 11:51PM |
Registered: 7 years ago Posts: 267 |
WATCH_TEMP_PERIOD WATCH_TEMP_INCREASE
Re: Prusa i3 Extruder Failure February 26, 2017 12:28PM |
Registered: 7 years ago Posts: 27 |
Quote
scottybfg
Don't worry mate, I'll try and get you up and printing if not someone else should be able to jump in and help out.
So what is happening now is thermal runaway. If the temperature of the hotend doesn't change over a set period of time, the printer suspects there is something wrong and shuts off. Its a safety feature.
Few things to look at, first have a look at the wiring, there could be a bad connection coming into the control board or from the control board to the heater cartage.
Another wearing issue could be with the thermister, but with thermister issues you normally see 0 or a negative temp or something like 700C,
You could try a P&ID tune for the hotend, this will help fine tune the control loop for the hotend, can also speed up heating times so always a good thing to do if you change hotend or power supply.
The last is to look in the firmware again for the thermal runaway settings
WATCH_TEMP_PERIOD WATCH_TEMP_INCREASE
Watch period is how long it will wait for a temperature increase (in seconds) and watch increase is the increase it is looking for.
The firmware you linked above, is this the new one you are trying to upload from HICTOP? I did find it a bit outdated in some aspects and now that you mention HICTOP I know its a cheap Chinese build. Nothing wrong with them but I find the firmware they send is usually a mash up of outdated open source. You should consider flashing a new version of marlin on your board, this will require you to change a few setting in the firmware, but there are lots of great videos and information out there on what to change. If you want to take this option let me know and ill link a few.
Re: Prusa i3 Extruder Failure March 01, 2017 07:53PM |
Registered: 7 years ago Posts: 27 |
Re: Prusa i3 Extruder Failure March 05, 2017 10:17PM |
Registered: 7 years ago Posts: 267 |
Re: Prusa i3 Extruder Failure March 05, 2017 11:22PM |
Registered: 7 years ago Posts: 27 |
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scottybfg
I wouldn't go that extreme it could be a wiring issue.
As for the firmware change, a quick google should give you all the info you need, its a question that asked about every few days so I should not need to type out the steps and hold your hand.
As for things to change, make sure that the correct control board is defined, the correct thermisters, and the movement setting so steps/mm (use the calculated steps but being an engineer I should not have to tell you that) and the acceleration, jerk and feedrate settings.
Re: Prusa i3 Extruder Failure March 06, 2017 02:20AM |
Registered: 8 years ago Posts: 5,232 |
Re: Prusa i3 Extruder Failure March 06, 2017 10:14PM |
Registered: 7 years ago Posts: 267 |
Re: Prusa i3 Extruder Failure March 07, 2017 08:21AM |
Registered: 8 years ago Posts: 413 |