# Laserbeam problem

**URL:** <https://forum.sienci.com/t/laserbeam-problem/14864>\
**Category:** ❓ Something's Up\
**Created:** [November 23, 2024, 12:31am UTC](https://forum.sienci.com/t/laserbeam-problem/14864 "2024-11-23T00:31:35Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\
**Post date:** [December 27, 2024, 12:53am UTC](https://forum.sienci.com/t/laserbeam-problem/14864/4 "2024-12-27T00:53:24Z")

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@knnewell Look at the this post by Paul Larson, Ken.

> [@Laser function in a LongMill](https://forum.sienci.com/t/laser-function-in-a-longmill/1436/40):
>
> @Kyfe That’s good to know, Kyle. I tested my laser with two different Long Mill controllers and the results were the same. I figured - maybe wrongly - that the chances of two LM controllers being bad were less than the chance that the laser driver was bad. Also, others here are getting correct results with their lasers and the LM controller, so I know that it is possible to make this work. Like you, I only have a multimeter to test output. From reading, ideally we need an oscilloscope. @chri…

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