i have 2 problem

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ednisley
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Re: i have 2 problem

Post by ednisley » Fri Aug 25, 2017 2:08 pm

quanghieuci wrote:This seems to be a SD card reader failure
I'd suspect a bad SD card, because they're prone to bizarre timing failures that depend on which reader you're using. Try another card, ideally a new card you're sure isn't a counterfeit, to see if the problem magically Goes Away.
thermistor I should chose in the Marlin software configuration.h
Thermistor 1 should be about right.

However, the thermistor must be firmly against the nozzle to report the correct temperature. I eventually epoxied it to the nozzle, which is a terrible idea if you must remove the nozzle to clear a clog:
https://softsolder.com/2013/05/10/maker ... e-sensing/

Image

If I were doing that again, I'd make a removable bond with high-temperature silicone gasket compound.

What I eventually did was upgrade to the V4 hot end and never looked back.

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