Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
bloodblight

Custom Heated Bed, Incorrect Temp, Max Temp Error & Controller Crash

Recommended Posts

I am in the process of installing a custom heated bed and am having a few problems.

I have installed a 4.7k Ohm resistor in R4, but am getting a MAXTEMP BED error. The temperature is changing, but is reading incorrectly (change is revered, temp goes down from 999 as it is heated).

Also, then I turn off the heated bed, I get some sort of spike in the system and the controller freaks out.

Ideas? I have h

Here is a video of basically what I just said:

 

Here is an extremely similar heated bed suggesting the 4.7k Ohm resistor:

http://www.ebay.com/itm/Heated-Bed-Kit-for-Ultimaker-Reprap-3d-Printers-MK2-PCB-Aluminium-plate-/161157442118

The heated bed I actually got:

http://www.amazon.com/gp/product/B00NMBPHIO/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

My hardware rev is 1.5.7

 

Share this post


Link to post
Share on other sites

Easiest way is to look into how to use:

http://marlinbuilder.robotfuzz.com/

This will save you the trouble of figuring out what is need to recompile the firmware as the builder will do that part for you. You just need to supply the correct values.

I'm sure there are many writeups on how to use ginge's builder but I'm sorry I don't have one to provide... Start with the correct template and you will be 98%-100% there...

 

Share this post


Link to post
Share on other sites

Alright... So I have the custom HEX file, but when I try to load it, it times out before loading any data. It leaves the controller in a locked state.

If I then try the default firmware it loads fine.

Am I missing something? The firmware is 281k.

 


Build Summary
AVR Memory Usage
----------------
Device: atmega2560
Program: 101990 bytes (38.9% Full)
(.text + .data + .bootloader)
Data: 4172 bytes (50.9% Full)
(.data + .bss + .noinit)
text data bss dec hex filename
101320 670 3502 105492 19c14 applet/Marlin.elf

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 24 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 18 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!