I have a Laguna LCB laser with a 4x8 bed, I just got my camera in today but I am not sure where the best place to mount the camera at for this larger table. I was planning on mounting the Camera to the gantry that follows the Y axis from about a foot above the laser head.
Unless LightBurn is selling head mounted cameras that I’m not aware of you will need to mount the camera so that it’s immobile relative to the bed. The camera can move as long as it returns to the exact same position/orientation when using the camera.
4x8 would put you at among the largest beds I’ve seen discussed on the forum.
Have you chosen the camera based on bed size and minimum mounting height?
Is this your laser?
I suppose you could try to mount the camera to the gantry but you’d always have to make sure the gantry is in the same position when capturing an image and you’d be obscuring much of the bed.
For the traditional camera you’d likely need to mount the camera to the outside of the machine, or possibly ceiling mounted or wall mounted if you’re setup for it.
I’m not familiar with how well the head mounted cameras work but that could theoretically be a solution although with a bed so large I could see that taking a very long time.
You talking about a bed camera, or a traveling head camera? The head camera isn’t working yet in software AFAIK. I don’t see how you could mount a bed camera on the gantry. Even if you put the gantry in a known position before taking a pic to use as the background, distance is needed to see an 8 ft wide bed. The camera would have to mounted on say a carbon fiber 4 point tripod (quadpod?), might have to be like 10 ft tall, and is going to jog around when in use, which is… odd. I would worry about the accuracy shifting with all that movement.
Not so much about mounting, but bed cam lessons learned for me:
With larger beds, you want to get the highest resolution you can. Currently that would be the Arducam 16MP (don’t get the autofocus version) https://www.amazon.com/gp/product/B09BCF6TGK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
And the 2.8-12 varifocal lens https://www.aliexpress.us/item/3256801163627310.html?spm=a2g0o.9042311.0.0.45d463c0NFUByL&gatewayAdapt=esp2usa&_randl_shipto=US
The Arducam is an unusually large imager chip, the lens construction needs to match the imager size. The 2.8-12 is the one you need. Also you need this one with an IR filter as the Arducam had that filter in the old lens which will be removed.
And an M12 locking ring is needed for the varifocal.
The reason we want varifocal is you want to adjust for zoom so the FOV just reaches the corners and nothing else. Otherwise, you’re limited to only a few FOV lens options, and going any wider than you need potentially wastes a lot of resolution.
You are in a different situation, you actually could use a fixed FOV lens and adjust the mounting height until it covers the corners. But I doubt you’d want to. I don’t know how the mount would work (maybe on the ceiling? the machine’s not going to move) but the simplest would be the shortest mount possible and not mounting on an extension arm that gets it to an exact arbitrary distance from the bed as dictated by the lens FOV.
yeah this is the machine I use, im trying to have a tech come by to help decide the best way to mount it for this particular machine. I really only need it to locate a corner for a sheet to base the rest of the jobs off of.
In that case do you really even need a camera? Can you not have fixed locations for work material on the bed?
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