# Fiber Laser Engraving on RED tumblers

**URL:** <https://forum.cloudray.com/t/fiber-laser-engraving-on-red-tumblers/1238>\
**Category:** Laser Marking & Engraving\
**Created:** [July 9, 2023, 8:10pm UTC](https://forum.cloudray.com/t/fiber-laser-engraving-on-red-tumblers/1238 "2023-07-09T20:10:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rvrking007](https://avatars.discourse-cdn.com/v4/letter/r/77aa72/32.png) [@rvrking007](https://forum.cloudray.com/u/rvrking007)\
**Post date:** [July 9, 2023, 8:10pm UTC](https://forum.cloudray.com/t/fiber-laser-engraving-on-red-tumblers/1238/1 "2023-07-09T20:10:42Z")

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Im having issues with red tumblers and bottles. I thought i had figured this all out and when i use red, everything looks horrible. I tried all the settings i used for orange, blue and purple along with so many other variables and nothing makes it better. Ive slowed my speed. Reduced and increased my power and frequency along with complete focus to defocused by 5.5 mm, and nothing. Ive attached a few pics for reference.

 ![20230709_144324](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/9da356956ea7755d4c9931712dfaaff7bb60367d.jpeg)  
 ![20230709_144208](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/beeff2bdcab0acab0385963da997279707128b1c.jpeg)  
 ![20230709_144311](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/8604d3d1454ddd7b48247f723b7dc0afcb7c02d7.jpeg)  
 ![20230709_144246](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/17ad196a092c66a27ec6ca4d221fce6b392ad208.jpeg)  
 ![20230621_123134](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/d88bfa4c4922243ae3abf03a0f83dad0e4812d0e.jpeg)

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**Author:** ![Polaris](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/polaris/32/831_2.png) [@Polaris](https://forum.cloudray.com/u/Polaris)\
**Post date:** [July 10, 2023, 3:15am UTC](https://forum.cloudray.com/t/fiber-laser-engraving-on-red-tumblers/1238/2 "2023-07-10T03:15:19Z")

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If your setings is correct, the problem should be the coated

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<div class="post-metadata">

**Author:** ![rvrking007](https://avatars.discourse-cdn.com/v4/letter/r/77aa72/32.png) [@rvrking007](https://forum.cloudray.com/u/rvrking007)\
**Post date:** [July 10, 2023, 2:02pm UTC](https://forum.cloudray.com/t/fiber-laser-engraving-on-red-tumblers/1238/3 "2023-07-10T14:02:11Z")

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Here are some samples of different settings but nothing seems to burn clean.

 ![20230709_144347](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/46974d97167c687e7b4c5786380db7fdf39f9872.jpeg)