# Uneven bed heating on Lulzbot Mini

**URL:** https://forum.lulzbot.com/t/uneven-bed-heating-on-lulzbot-mini/23967
**Category:** LulzBot Mini
**Created:** [December 1, 2021, 4:56pm UTC](https://forum.lulzbot.com/t/uneven-bed-heating-on-lulzbot-mini/23967 "2021-12-01T16:56:35Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Gringotuerto](https://avatars.discourse-cdn.com/v4/letter/g/f19dbf/32.png) [@Gringotuerto](https://forum.lulzbot.com/u/Gringotuerto)
#### Post date: [December 1, 2021, 4:56pm UTC](https://forum.lulzbot.com/t/uneven-bed-heating-on-lulzbot-mini/23967/1 "2021-12-01T16:56:35Z")

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I was having trouble with PETG printing consistently, and found it worked a lot differently on different parts of the bed. We had an infrared cooking thermometer, and this worked really well to isolate the problem - I was able to see that when I set the bed to 85C, parts of the bed were at 108C (!). So this caused melting/warping in those areas. I see there are some plates for heat conduction, which might be a good solution. But I ended up solving the problem by just backing down the bed temperature after the first layer. No more issues. A couple example thermometers are:

> **[Industrial IR Gun (IR-GUN-S)](https://www.thermoworks.com/ir-gun/)**
>
> Specializing in cool, unique and professional temperature tools. Super-Fast thermocouples, thermistors, infrared thermometers, data logging and more.

> **[Amazon.com: ThermoPro TP30 Digital Infrared Thermometer Gun Non Contact Laser...](https://www.amazon.com/ThermoPro-TP30-Thermometer-Temperature-Adjustable/dp/B07VTPJXH9)**
>
> Amazon.com: ThermoPro TP30 Digital Infrared Thermometer Gun Non Contact Laser Temperature Gun -58°F ~1022°F (-50°C ~ 550°C) with Adjustable Emissivity & Max Measure (NOT for Human Body Temperature) : Industrial & Scientific