Tutorial: How to cut without the Crumb Tray (Honeycomb)

tutorial
crumbtray

#41

I get 1.35" for the tray height. If you pull the tray out and measure the plastic sides (which it sits on… not the legs that go down in the notch), and then subtract the little lip height between the side and the honeycomb, I got 1.35".
Somewhat minor difference, I’m not sure how much it matters.


#42

VERY minor, indeed. :wink:


#43

I’m new and just got my Glowforge. Let me get this right…even without the crumb tray, the top of the material needs to be in the 1/2" zone between where the honeycomb tray sets and the laser head? Therefore, I cannot enter a material thickness with a negative number to set the height of the material if the crumb tray isn’t in place? Instead, I would need to build up the material with another object to get it to this zone? I just want to make sure that I understand. Thanks in advance… Matt


#44

Correct on all counts. :slightly_smiling_face:


#45

Here’s a look at it. :slight_smile:


Engraving a Ceramic Plate
#46

Just to explain why - the beam focuses at a specific distance from the lens. To achieve focus for materials of varying heights, the mechanism in the head moves the lens up and down. The crumbtray surface is basically the zero mark - below that spot, the beam can no longer be in focus.


#47

Thanks so much for this! Used it twice and got a perfect cut right out the gate! I’m terrible at math and Excel, so I never would have been able to work this out on my own. Much appreciated!