Barn Find Gravograph LS100

Putting Humpty Dumpty back together again


If anyone wants a co2 laser engraver project, i have a gravograph ls 100 with a 30w Synrad Firestar RF tube. I was going to refurb it but i don’t have time and I have to make room for another laser.

This machine did engrave for me. IT NEEDS WORK. It has new Mirror and 2″ lens. And it has a 110vac to 220vac step-up transformer that is new as well. THE SYNRAD V30 TUBE IS OUTPUTTING 22.6W @ 90% POWER. SEE THE VIDEO BELOW.

i will take $800 for it. Local Pickup Only. AS IS. Middle Tennessee Area.


This is a Gravograph LS100 circa Y2K with a Synrad Firestar v30 RF tube. This is one solid machine. The entire frame is cast and milled. The entire laser is highly proprietary and reminds be a lot of my ULS25e.

Here is a new one:

And here is a similar one on ebay:

I found this nearby and bartered for it hoping I didn’t have a big paperweight. I looked it over, cleaned it up, and powered it up. And…. the controller came to ready and it homed 🙂

X, Y, and Z axes all jogged via the controller but there is a bit to be done to the motion control systems to get it just right. I got the driver loaded, sent over a windows test page (yeah, a windows test page LOL) and I got a raster engrave!

The optics are shot as are the air assist lines, everything needs adjustment and alignment, and lots of TLC but I think it will have quite a bit of life left in it. This would be superb for those thinking about a portable rig. Its solid as a rock.

UPDATE 01/17/2021 – Optics and More

I purchased all new II-VI optics for the machine and gave it a good ‘going over’. Once I get the beam alignment done I will see what kind of power that v30 it outputting.

The Z axis motion control components need some TLC because the belt is jumping. And the X and Y linear guides could use a bit of care as well. That shouldn’t be a big deal.

So, all in all, this looks like it can pretty easily be up and running and it will be one bad machine! I will keep you posted…

UPDATE 04/17/2021 – Power Test

This is a power test on the barn find LS100. The Synrad v30 is outputting 22.6 watts at approximately 90% power. This is a good tube folks! See more here:




Related Articles