So or Mo - Which mirror type is better?

A place for users to ask questions and search for already asked questions. "BE NICE" and helpful!
Post Reply
Chris Reed
Posts: 7
Joined: Wed Aug 25, 2021
Location: Adelaide
Country: Australia
Nickname: Kyokisan1
Laser Machine Make or Type: ChinaCNCZone SL1060
Laser Power: 100w
Laser Bed Size: 1000 x 600
Home Position: TR
Control Software: RDWORKS
RDWorks Version: v8.01.40
Ruida Controller: RDC6445
Windows Version: 10 Pro
Accessories: Chuck type Rotary Axis
Cloudray Type 'E' Laser Head set & Spare Insert Tubes for 38.1, 50, 63.8 & 101.6 F.L lenses
Cloudray Red Spot Beam Combiner
Autofocus
Additional 'Z' Axis Limit (Bed Lower Limit)

Hi Guys,
I’m changing out the laser head and mirrors that came with my machine for Cloudeay ‘E’ Series units.
I’m putting in an ‘In Beam’ red spot at the same time.
I was wondering if anyone has any thoughts on the relative merits of Mo mirrors over the more normal Si type?
Any insights would be most welcome.
Pete Cyr
Posts: 1964
Joined: Sun Nov 27, 2016
Location: Suffolk Virginia
Country: United States
Laser Machine Make or Type: Boss 1630
Laser Power: 100w
Laser Bed Size: 16"x30"
Home Position: TR
Control Software: RDWORKS
RDWorks Version: v8.01.18
Ruida Controller: RDC6442
Windows Version: Win 10
Accessories: roller rotary attachment

I dont have a preference but I have never read anything that indicates one mirror is better than another.
Location - VA
Equipment - Boss Laser 1630
Power - 100W
Laser Bed Size - 16" x 30"
Home Position - TR
Full RDWorks Version - v8.01.18
First name - Pete
Dave Vigness
Posts: 526
Joined: Sun Dec 15, 2019
Location: Kansas City - Rural
Country: USA
Nickname: Dave
Laser Machine Make or Type: Chine Red and Black
Laser Power: EF RF2 80W
Laser Bed Size: 20 x 26
Home Position: TR
Control Software: RDWORKS
RDWorks Version: 8.01.54
Ruida Controller: RDC6445
Windows Version: 7
Accessories: Power Switch for air assist / exhaust blower, Ma meter with switch for external digital, dual digital temp gauge, LED lights under gantry and and and.

Pics and a list here. https://drive.google.com/drive/folders/ ... sp=sharing

Mo mirrors are 'forever mirrors'. They can be polished over and over and brought back like new.
Chris Reed
Posts: 7
Joined: Wed Aug 25, 2021
Location: Adelaide
Country: Australia
Nickname: Kyokisan1
Laser Machine Make or Type: ChinaCNCZone SL1060
Laser Power: 100w
Laser Bed Size: 1000 x 600
Home Position: TR
Control Software: RDWORKS
RDWorks Version: v8.01.40
Ruida Controller: RDC6445
Windows Version: 10 Pro
Accessories: Chuck type Rotary Axis
Cloudray Type 'E' Laser Head set & Spare Insert Tubes for 38.1, 50, 63.8 & 101.6 F.L lenses
Cloudray Red Spot Beam Combiner
Autofocus
Additional 'Z' Axis Limit (Bed Lower Limit)

I did read somewhere that Si mirrors can crack with lasers 100w and above, more so if they aren’t kept clean - Is this a real world problem?
I inadvertently ordered a set of each from Cloudray, and the Mo set are noticeably heavier than the Si, so I suppose I can try both and see if there are any real benefits in terms of use.
I was leaning towards the Mo type due to the ability to re-polish them, but hey, I’m new to this in terms of low power CO2 equipment, the ones we have at work cut thick steel plate.
We are currently commissioning a new fibre machine too, so exiting times ahead.
Thanks for the advice too, it is most appreciated.
Post Reply

Return to “User Questions and Help”