Thermistor error with the MK8 extruder

Community General Discussions
1

Test.stl (4977Bytes)

Dear: LMR

Hi lmr it is me Noah again. I am running into some extruding problems with MK8 exturder. This is for my Prusa I3 and for some reason it can't reach to what ever temperature I set it to. I set teh printer to 230 degrees celcius when it keeps bouncing between 216 and 223. When I set the printer to 250 the temperature is more than 230 (more or less 230 - 235.) I know it can extrude I have done it before. Also it can't print untill the temperature is exactly to what I set it to. Any ideas.

From: Noah

PS: Here is the firmware for Sanguinlolu. Check steps for installing the drivers for the download and instructions.

UPDATE: 6/18/15

Dear: LMR

Just to let you know I have solved my 3d printer problem well good enough. The problem was not enough power was getting into the printer. It has been weeks since I first built this printer and apparantly something was an issue that I didn't think would be. You see the united states tends to have 110 volts between 117 volts for power sockets. The power supply apparantly still thinks that it was made in china because it was anticipating 220 volts.Anyways there was a switch on the printer that fixed all of this. Unfortunatley I never did manage to figure out how to PID autotune my printer but I don't think autotuning is no longer a problem.

Can you guess what this is I want to see your faces...

my_first_print.jpg

It’s a hexagon simease twins. No just kidding it’s my first print. See you guys later!!!

From: Noah

2

I have to wonder

What your firmware is doing. You may also want to try M303 and putting the pid numbers where they belong.

3

What is M303 and pid

What is M303 and pid numbers. I have never heard of those.

4

I found out how to get to PID. What do I do?

Hey guys I found out how to get to PID. What do I click to change the PID for the extruder. I saw PID-P, PID-C, PID-I, and PID-D. Which one is for the extruder.

IMG_0022.jpg

5

What is firmware?

Dear: Birmun

Sorry I should have asked you this first but what is firmware? That is the only part of your question I was not getting.

From: Noah

6

The PID control loop is for the extruder.

Run M303 and change the PID numbers to the ones that get spit out. Run it a few times so your printer can dial in the numbers.

7

Firmware

is the program that is running on your sanguinololu. It is probably marlin, but, that is not a given.

8

What is M303?

You keep saying M303 but what is it?

9

I already gave you the firmware did I not?

This is the page I downloaded the firmware from. There is a step for installing the drivers that you can download the firmware from. Also I don’t know the name of the firmware.

10

Your printer understands most of rs-274(?)

It is a standard for Gcode. There are G codes and M codes. The software that sends Gcode to your print should let you manually send codes as well. Learn how to do that and send M303.

11

Now I get it.

Now I get it. Thank you.

12

The link you provided

offers links to the FTDI (?) driver and Repetier-host. The firmware is not mentioned at least not based on my scanning of the document.

13

What do you mean “To the ones that get spit out” and thank you.

Dear: Birdmun

First of all thank you for helping me I think I forgot to give some thank yous to Mogul and you but what do you mean “PID numbers to the ones that get spit out.” Should I notice something change towards the PID numbers.

From: Noah

14

Read the link

That mogul posted. It should tell you everything you need to know.

15

PID is failing, now what should I do?

Dear: LMR
First of all I’d like to appologise if I asked too many questions. It is just that I skimmed the link Mogul sent me and I thought the link was telling me to manually change the PID setting which made no sense. Anyways I got my dad to help me and I ran into another problem neither of us could solve. Here are the errors we ran into with Repetier Host.

18:29:23.518 : start

18:29:23.518 : echo:Marlin 1.0.0

18:29:23.518 : echo: Last Updated: Apr  7 2015 10:20:40 | Author: (Eddie, Sanguino 1.3)

18:29:23.518 : Compiled: Apr  7 2015

18:29:23.518 : echo: Free Memory: 12297  PlannerBufferBytes: 1232

18:29:23.518 : echo:Hardcoded Default Settings Loaded

18:29:23.518 : echo:Steps per unit:

18:29:23.518 : echo:  M92 X78.74 Y78.74 Z2560.00 E95.00

18:29:23.518 : echo:Maximum feedrates (mm/s):

18:29:23.518 : echo:  M203 X400.00 Y400.00 Z2.00 E45.00

18:29:23.518 : echo:Maximum Acceleration (mm/s2):

18:29:23.518 : echo:  M201 X5000 Y5000 Z50 E5000

18:29:23.518 : echo:Acceleration: S=acceleration, T=retract acceleration

18:29:23.518 : echo:  M204 S1000.00 T2000.00

18:29:23.518 : echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)

18:29:23.519 : echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00

18:29:23.519 : echo:Home offset (mm):

18:29:23.519 : echo:  M206 X0.00 Y0.00 Z0.00

18:29:23.519 : echo:PID settings:

18:29:23.519 : echo:   M301 P19.86 I1.00 D98.93

18:29:26.872 : echo:SD init fail

18:41:54.277 : PID Autotune start

18:51:53.146 : PID Autotune failed! timeout

18:51:55.673 : Error:Line Number is not Last Line Number+1, Last Line: 267

Apparantly there was a timeout error and I don’t know how to fix it. I tried fixing it by preheating the heating bed which it seems like that would solve it according to google but it didn’t. What should I do now?

Also in case you are wondering how I sent the G-code to the printer I just simply added it to script one in the G-code editor then went to Printer and Send Script One to printer and that is how I loaded it onto the printer through repetier and my laptop. Can somebody please help me I am stuck?
From: Noah 

16

Problem mostly solved!!!

Updated!!! Wahoo!!!