1/4" Bubinga...setting?


#1

Bubinga is very hard stuff and I am very new to the Glowforge. I would love to know if someone has had success in cutting this wood without scorching the wood. Thanks in advance!


#2

I think you’re the first to try to cut it that thick. I think most folks plane it down to 1/8", or use veneers.


#3

Try searching around for other hardwoods at that thickness, like this:

https://community.glowforge.com/search?context=topic&context_id=29338&q=1%2F4%22%20hardwood&skip_context=true

I don’t recall anyone mentioning bubinga specifically but the advice you will find for cutting 1/4” material is going to be a really solid starting point.

If you figure it out please share!


#4

You can always run a test as laid out here Depth Adjustments


#5

Thanks all, I think I have a lot to learn. In other news, my neighbor is getting promoted to Master Sergeant in the USMC. His wife is having a pine box made to have his challenge coins displayed in. Before assembly, she wants me to laser engrave his name and rank on it. My neighbor gave me a piece of the pine they are using and is is 1x4 lumber measuring 5/8 inches thick. The GF told me I cant engrave that thick with the tray in so I took it out. The laser made a mess in my first experiment of the testing. I think maybe a low power and fast speed with how soft pine is, but still the GF likely isnt focusing correctly because the tray being out


#6

This might help:

https://community.glowforge.com/search?q=pine%20settings


#7

You do know that you need to bring it up to within a half inch of where something you could work on would be. So if is was sitting on something exactly one inch thick you wold have to tell the laser that it was 1\8 inch as it would be 1\8" above where the crumb tray would be if it were still there. To have something underneath of a fixed height to make measuring easy here is one of several designs folk have come up with…,


#8

You’ll need to place the pine on something to bring the top to within 1/2" of the head. You can measure your tray’s height (use the top edge as you want to measure off the bottom of the GF and not the bottom of the tray). You want to measure to the top of the honeycomb, not the plastic edges.

Most measure between 1.3 and 1.4"

Take a piece of material - say a 1-by piece of wood and place it on the bottom of the GF. Place your material on top of that. Your total height is now 3/4" + 5/8" or 11/8" or 1 3/8" or 1.375"

If your tray was 1.3" then subtract that from 1.375 and you’ll get 0.075" as the thickness to tell the GF in the settings for “Use Unknown Material” (upper left corner of the GFUI).

If your tray height measured to 1.4" then you need some more material underneath your pine piece. If you put a piece of 1/4" plywood on top of the 1-by piece of wood you’ll be at 1" plus the 5/8" of your project piece is 1.625" less the 1.4" of your honeycomb tray height gives you a 0.225" thickness for the GFUI to use.

What you’re trying to do is treat your honeycomb height as “0” and get your material surface to something above that and then telling the GFUI how much above that 0 height your material sticks up above (while keeping it less than 1/2" above the 0 height so you don’t smack the head with your project)