Would like to hear from the community on this topic (sorry if it’s already discussed elsewhere).
Picture “A” shows the panel of a dovetail box and the front view of what the finished cut looks like underneath (exaggerated to illustrate point)
You can see that it does not cut it straight but at an angle which adds in another variable to joinery.
Picture “B” shows a diagram of how I understand the laser to cut with a specific focal height.
The image on the left shows how the laser cuts 1/8" material with an 1/8" focal height setting.
The image on the right shows how the laser cuts 1/8" material with a 1/16" focal height setting.
My questions are twofold:
- Am I understanding the nature of the laser and its focal point correctly? (hourglass affect)
- If i’m trying to get the tightest joinery possible should I set the focal height to the middle of its thickness? (in this case 1/16")