# Product Video

**URL:** https://forum.cloudray.com/c/co2-laser-cutting-engraving/product-video/45.md

[Latest](https://forum.cloudray.com/latest.md) · [Categories](https://forum.cloudray.com/categories.md)

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## [About the Product Video category](https://forum.cloudray.com/t/about-the-product-video-category/76)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0

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## [Teaching video](https://forum.cloudray.com/t/teaching-video/257)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 9:15am UTC](https://forum.cloudray.com/t/teaching-video/257 "2021-04-12T09:15:39Z")

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1.Focusing lens installation and removal 2.Handheld power meter test 3.Laser tube + power supply + ammeter connection 4.Description of automatic airflow scheme …

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## [Installation video](https://forum.cloudray.com/t/installation-video/256)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 9:04am UTC](https://forum.cloudray.com/t/installation-video/256 "2021-04-12T09:04:37Z")

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1.Straight guide rail installation (single-head C series metal parts) 2.Straight guide rail installation (single head & double head E series metal parts) 3.Inner slide rail installation (s…

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## [Some settings about Trocen controller](https://forum.cloudray.com/t/some-settings-about-trocen-controller/255)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 8:58am UTC](https://forum.cloudray.com/t/some-settings-about-trocen-controller/255 "2021-04-12T08:58:44Z")

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1.How to set the motor pulse equivalent (panel) 2.How to set the working format (panel) 3.How to set the axis direction (panel) 4.How to set the language of Qiancheng 708C …

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## [Some settings about the Ruida controller](https://forum.cloudray.com/t/some-settings-about-the-ruida-controller/254)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 8:52am UTC](https://forum.cloudray.com/t/some-settings-about-the-ruida-controller/254 "2021-04-12T08:52:08Z")

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1.How to set the language 2.RDWorks sets the size of the work area 3.RDWorks sets the motor step distance (pulse equivalent) 4.RuiDa RDC6442G restores factory parameters (p…

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## [Some operations of S&A industrial chiller](https://forum.cloudray.com/t/some-operations-of-s-a-industrial-chiller/253)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 8:41am UTC](https://forum.cloudray.com/t/some-operations-of-s-a-industrial-chiller/253 "2021-04-12T08:41:15Z")

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1.How to shield the Hall flow switch 2.How to replace the Hall flow switch circuit board 3.Check and clean the Hall flow switch 4.Check whether the there is any malfunction…

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## [Machine DIY problem](https://forum.cloudray.com/t/machine-diy-problem/252)

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**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\
**Replies:** 0\
**Last updated:** [April 12, 2021, 8:26am UTC](https://forum.cloudray.com/t/machine-diy-problem/252 "2021-04-12T08:26:54Z")

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1.Optical path correction 2.Focal length measurement 3.Light path installation