Laser tube replacement info

Doug Fisher
Posts: 203
Joined: Sat Aug 20, 2016 12:42 pm
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!
Windows Version: 10

Re: Laser tube replacement info

Post by Doug Fisher »

>>I got my SPT C130 tube<<

I see you decided against the version with a built in red laser for aligning. Did Marco steer you away from these for some reason? Theoretically, the red aligning laser sounds great but I have not heard whether they actually deliver in real-world usage.
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Gene Uselman
Posts: 1976
Joined: Thu Jul 07, 2016 3:18 pm
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: AKL1318-2
Laser Power: 130W & 80W Reci
Laser Bed Size: 51 x 71
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
Ruida Controller: RDC6445
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, Prusa i3 MK3S and Mini Prusa printers.
Windows Version: Win 10 Pro

Re: Laser tube replacement info

Post by Gene Uselman »

They don't have them [at least in stock online] or I would have. They seem to run $200 more which seems a bit high and I had already bought a combiner lens and housing from them [ I like their setup] for this machine.
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BT48 Alpha Shopbot and 1300x1800 130W Laser

The days that I keep my gratitude higher than
my expectations, Well, I have really good days.

Ray Wylie Hubbard
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Gene Uselman
Posts: 1976
Joined: Thu Jul 07, 2016 3:18 pm
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: AKL1318-2
Laser Power: 130W & 80W Reci
Laser Bed Size: 51 x 71
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
Ruida Controller: RDC6445
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, Prusa i3 MK3S and Mini Prusa printers.
Windows Version: Win 10 Pro

Re: Laser tube replacement info

Post by Gene Uselman »

The latest on the tube saga is the SPT 130w broke internally and leaked water into the outer glass jacket. Marco at LightObject suspects that it was thermal shock from too cool water pumped into the hot tube. After much thought, I agree with him, it was on one of our first cold days and the chiller was not run to circulate the coolant and perhaps a hidden flaw when the glass envelope was made.. LO no longer had the 130w SPT in stock so we bought a GSI 130w tube- the technician who checked it at LO sez it develops 130w at 23mA and 147 at 28mA- which seem very low to me compared with all the rest of the tubes I have worked with- Marco said that 25mA should be safe for the long haul- this is a quite a cutting rig now. The GSI is a very quality looking tube.
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BT48 Alpha Shopbot and 1300x1800 130W Laser

The days that I keep my gratitude higher than
my expectations, Well, I have really good days.

Ray Wylie Hubbard
Frank Small
Posts: 68
Joined: Sun Mar 24, 2019 4:12 pm
Location: Bennington, Vermont
Country: USA
Laser Machine Make or Type: 50W China Blue upgraded to Reci 75W tube
Laser Power: 75
Laser Bed Size: 500x300
Home Position: TL
Control Software: LIGHTBURN
RDWorks Version: RDW v8.01.18
Ruida Controller: Other
Accessories: Ruida Controller R644XG
Rotary fixture
Windows Version: Win 10

Re: Laser tube replacement info

Post by Frank Small »

Gene

Would you mind posting a picture of your new tube?
Eleven months of the year I’m an old fat guy but in December I’m a rock star, aka Santa
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Gene Uselman
Posts: 1976
Joined: Thu Jul 07, 2016 3:18 pm
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: AKL1318-2
Laser Power: 130W & 80W Reci
Laser Bed Size: 51 x 71
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
Ruida Controller: RDC6445
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, Prusa i3 MK3S and Mini Prusa printers.
Windows Version: Win 10 Pro

Re: Laser tube replacement info

Post by Gene Uselman »

I was going to send the pict from LO website but it is a little different from my tube- very quality looking IMHO. Gene

.
GSI tube.jpg
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If the Help and advice you received here was of VALUE...
Please consider making a donation to maintain the RDWORKSLAB Forum.

BT48 Alpha Shopbot and 1300x1800 130W Laser

The days that I keep my gratitude higher than
my expectations, Well, I have really good days.

Ray Wylie Hubbard
Frank Small
Posts: 68
Joined: Sun Mar 24, 2019 4:12 pm
Location: Bennington, Vermont
Country: USA
Laser Machine Make or Type: 50W China Blue upgraded to Reci 75W tube
Laser Power: 75
Laser Bed Size: 500x300
Home Position: TL
Control Software: LIGHTBURN
RDWorks Version: RDW v8.01.18
Ruida Controller: Other
Accessories: Ruida Controller R644XG
Rotary fixture
Windows Version: Win 10

Re: Laser tube replacement info

Post by Frank Small »

Gene

I would agree,it looks to be a well made tube.

F
Eleven months of the year I’m an old fat guy but in December I’m a rock star, aka Santa
User avatar
Gene Uselman
Posts: 1976
Joined: Thu Jul 07, 2016 3:18 pm
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: AKL1318-2
Laser Power: 130W & 80W Reci
Laser Bed Size: 51 x 71
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
Ruida Controller: RDC6445
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, Prusa i3 MK3S and Mini Prusa printers.
Windows Version: Win 10 Pro

Re: Laser tube replacement info

Post by Gene Uselman »

The four grub screws on the output adjust the beam I believe- I know I saw a video of Marco tweaking them but I cannot find it now. I have 3 tubes here now [Reci] with bad beam patterns and it make sense to me to be able to adjust them somehow after the tube is sealed. I don't know if that is what they do but I like to think so anyway.
If the Help and advice you received here was of VALUE...
Please consider making a donation to maintain the RDWORKSLAB Forum.

BT48 Alpha Shopbot and 1300x1800 130W Laser

The days that I keep my gratitude higher than
my expectations, Well, I have really good days.

Ray Wylie Hubbard
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