Test print

This topic contains 11 replies, has 4 voices, and was last updated by  Bill 2 years, 1 month ago.

Viewing 12 posts - 1 through 12 (of 12 total)
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  • #42988

    Martin Brandon
    Participant

    I’ve tried doing a test print this afternoon. it keeps stopping with an error about thermal runaway. Can someone enlighten me as to whats wrong?

    #42999

    Ryan
    Keymaster

    Any more specs on your setup?

    That means you are not getting too or holding the temps well enough.

    Power supply size or quality, thermistor, ridiculous temps set, AC running, fan, near a window, loose wire?

    #43012

    Martin Brandon
    Participant

    The lcd screen was showing that the temp was OK. My 1st thought was a loose wire so double checked all wiring all seemed OK. Power supply was a 12v 6 amp type for led lighting etc.

    #43014

    Ryan
    Keymaster

    Did you flash the firmware to enable the Thermistors “EB”? The stock one has the dummy value hard coded to 170C.

     

    #43015

    Ryan
    Keymaster
    #43025

    Martin Brandon
    Participant

    Ryan,

    I flashed this one.

    https://www.v1engineering.com/wp-content/uploads/2017/05/MPCNC813_GLCD_EB.zip

    I assume that this is the latest version for 8mm threaded rod?

    #43026

    Ryan
    Keymaster

    Power supply, board, extruder, thermistor, bed, temps?

     

    I really can’t help without a bunch more info. A picture might help as well.

    #43033

    Martin Brandon
    Participant

    Hi ryan,

    Thanks for helping. The board is a ramps 1.4 bought as a ┬ácomplete kit from ebay. The extruder was purchased along with the wiring harness from yourself. I don’t have a heated bed as I was of the understanding that for pla you don’t actually need one. the extruder was set to a temp of 200 as set up in your settings for Repetier Host from your site.

    It was in this software that I was trying to do the test print this afternoon.

    #43036

    Ryan
    Keymaster

    Does it get hot at all? I am really unclear to what is actually happening.

    Power supply?

    CNC stuff is super easy to know what is going on, 3D printing you have to give me all the details. Stabbing in the dark is not fun. Power supply failing, thermistor coming out of the head, doe it heat at all does it over heat, fan?

    #43094

    Bill
    Participant

    Switch Repetier-Host to display the temperature and see if you’re getting a dip on the hot end. It can happen with drafts or a misaligned fan. A drop of a degree or two that doesn’t recover quickly will generate that error.

    #43279

    Jeffeb3
    Participant

    IIRC, repetier host has a recent temp graph. Octoprint does too. I think they both keep about 15 minutes of history. The graph tells you so much more than a number.

    #43355

    Bill
    Participant

    Repetier-Host keeps 60 minutes of temperature history. You can scale in and out and will want to zoom all the way in for this type of error.

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