View source for Omtech MF2028-60 60W CO2 Laser

[[File:Omtech_MF2028-60_Stock_Photo.jpg|thumb|Omtech MF2028-60 (stock photo)]]

== Overview ==

CO2 laser similar to generic Chinese ones, but supported by a USA reseller. It has RuiDa controls and is supported by LightBurn.

== Specifications ==

{| class="wikitable"
! USA Manufacturer
| Omtech
|-
! USA Model Number
| MF2028-60
|-
! Chinese Manufacturer
| Shenhui
|-
! Chinese Model Number
| SH-G570
|-
! Working Area
| 700x500mm (27.55x19.68")
|-
! Power Level
| 60W
|-
! Controls
| RuiDa
|}

== Software ==

=== LightBurn ===

USA based third party software that is much more user friendly. The "DSP license" edition is what you need to work with the Chinese RuiDa controls. It costs $120 for this edition. Free trials are available! The long-term plan is to have the software on a dedicated PC next to the machine.

[https://lightburnsoftware.com/ LightBurn Software]

You'll want to add the RuiDa device manually by IP address (after configuring to have your Ethernet card with a manual IP in the same subnet), and tell the software the correct working area of the machine, and that the origin is the top right.

=== RDWorks ===

NOTE: I do not recommend using the Chinese software!

The original Chinese software designed for their controls:

[https://www.rdacs.com/en/download?type=software Download of Motion Control Software and V8 software-Ruida Technology] (pick the RDWorksV8 category on the left)

Unsure if this is an official website or not:

[https://www.ruidacontroller.com/download/ RuiDa Controller Manual and Software Download | Best Co2 Laser Controller]

=== Inkscape ===

Useful for editing/creating artwork that can then be cut with the laser!

[https://inkscape.org/ Inkscape]

== Upgrades ==

=== Fume Extractor ===

Cloudline A6 AI-CLA6

[https://acinfinity.com/hydroponics-growers/ventilation/inline-duct-fans-lite/cloudline-lite-a6-quiet-inline-fan-with-speed-controller-6-inch/ CLOUDLINE LITE A6, Quiet Inline Fan with Speed Controller, 6-Inch - AC Infinity | AC Infinity]

[https://www.amazon.com/dp/B09456J5CC AC Infinity CLOUDLINE LITE A6, Quiet 6” Inline Duct Fan with Speed Controller | Amazon]

=== Air Assist ===

The internal air pump was bypassed, and an external air compressor/regulator/solenoid valve are being used instead:

Kobalt 3300244

[https://www.lowes.com/pd/Kobalt-QUIET-TECH-2-Gallon-Single-Stage-Portable-Electric-Hot-Dog-Air-Compressor/1001014016 Kobalt QUIET TECH 2-Gallon Single Stage Portable Corded Electric Hot Dog Air Compressor in the Air Compressors department at Lowes.com]

TODO: regulator and solenoid valve

== Replacement Parts ==

=== Focus Shim ===

* 17.83mm tall (for setting focus distance)
* made of amber colored acrylic

=== Lens ===

* 18mm diameter
* 2.2mm thick
* 5.08mm [2.0"] focal length
* made from ZnSe

Suitable replacements:

[https://www.amazon.com/dp/B01ER2ISX2/ TEN-HIGH CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens Laser Focus Lens, ZnSe for CO2 Laser Engraving Cutting Machine, Dia18mm FL50.8mm]

[https://www.amazon.com/dp/B07B8X7T7G/ Cloudray CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens CO2 Focus Lens,PVD ZnSe for CO2 Laser Engraving Cutting Machine,Laser Cutter 30W-100W,Dia 18mm FL50.8mm | Amazon]

[https://www.cloudraylaser.com/products/cloudray-co2-laser-usa-cvd-znse-meniscus-focus-lens?variant=7645039099955 USFL05D18F50 Cloudray CO2 Laser USA CVD ZnSe Meniscus Focus Lens – Cloudray Laser]

[https://www.cloudraylaser.com/products/cloudray-co2-laser-china-pvd-znse-focus-lens?variant=43422450120 CNFL05D18F50 Cloudray CO2 Laser China PVD ZnSe Focus Lens – Cloudray Laser]

[https://lightobject.com/improved-18mm-znse-focus-lens-f50-8mm/ LSR-LEN18ZN5I Improved 18mm ZnSe Focus lens (F50.8mm) - LightObject]

[https://lightobject.com/high-quality-18mm-znse-focus-lens-f50-8mm/ LSR-ZNSE1850HQ High quality 18mm ZnSe Focus lens (F50.8mm) - LightObject]

=== Mirrors ===

* 25mm diameter
* made from molybdenum

Suitable replacements:

[https://www.amazon.com/dp/B01NAK2IN2/ TEN-HIGH Mo Reflective Lens CO2 Laser Lens Laser Mirror Molybdenum Mirrors, for CO2 Laser Engraving Cutting Machine, Dia 25mm 3PCS | Amazon]

[https://www.amazon.com/gp/product/B079NX1Z6B/ Cloudray Mo Mirror Dia 25mm (0.98 Inch) Thk 3mm (0.12 Inch) for CO2 laser engraving cutting machine Pack of 3PCS | Amazon]

[https://www.cloudraylaser.com/products/cloudray-co2-laser-mo-reflective-mirror-lens?variant=7645314744371 MM05D25T33P Cloudray 3PCS CO2 Laser Mo Reflective Mirror Lens – Cloudray Laser]

[https://lightobject.com/25-mm-molybdenum-mo-reflection-mirror/ 25mm Molybdenum (MO) Reflection Mirror - LightObject]

=== Air Assist Nozzle ===

* 38.85mm from nozzle tip to end of threaded portion
* 7.01mm from end of threads to internal lens seating shoulder
* (31.84mm from tip of nozzle to lens seating shoulder, calculated from above)

=== Chiller ===

S&A CW-5200 Industrial Chiller

Sticker on back says:

<pre>S&A INDUSTRIAL WATERCHILLER
Model: CW-5202DH        CFG code: 9270
Voltage: AC 1P 110V     Refrigerant: R-410a
Frequency: 60Hz         Max.pump lift: 12m
Current: 0.5-8.9A       N.W: approx 23kgs
Tank Capacity: 6L
NOM Cooling CAP: 1.67kW
MADE IN CHINA   www.teyu.com.cn
Guangzhou Teyu Electromechanical co.,Ltd.   TC4768</pre>

== Online Resources ==

[https://omtechlaser.com/products/60w-co2-laser-engraver-cutter-usb-6b57-us Omtech MF2028-60]

[https://www.lcshenhuilaser.com/6090-Cutting-Machine-Laser-Cutting-Machine-pd49203972.html SH-G570 CO2 Laser Engraving Machine from China manufacturer - Shenhui Laser]

[https://web.archive.org/web/20210226213555/https://www.lcshenhuilaser.com/2020-Design-570-Laser-Engraving-Machine-pd41834735.html 2020 Design 570 Laser Engraving Machine from China manufacturer - Shenhui Laser] (Wayback Machine)