Nice little trick to set the hight from the material.

Lasers
,
1

Nice little trick to set the hight from the material. https://youtu.be/0eGiQzf6nac?t=810&t=13m31s
https://youtu.be/0eGiQzf6nac?t=810

2

Damn. I wish mine cut that quick and that clean!

3

@StephaneBUISSON I saw that clever lever. On my list for a new head design with snap in lenses… some day!

4

That is a Trotec feature. A very useful tool to have.

5

Im surprised how he is choosing to draw the gear. That was so painful for me to watch because it was so slow and inefficient :frowning:

6

I was surprised at his near computer illiteracy. He comes across as much more talented on the Mythbusters show. The Trotec machine looks like a beast. I also wish I could cut that cleanly. I guess that’s what 120W of power does for you.

7

Would you like to post a tutorial on how to draw gears?

8

don’t draw a gear, use a gear generator plugin.
see my post here 14/12/2015

9

@Brook_Drumm I would agree you create a tutorial on that?

10

the focus setting is interesting…people say to set the focus point in the middle of the material but that and other auto focus setting systems all seem to use the face as the focus point

11

@adrian_miles Depends on if you want to cut or engrave. Cutting works best when focused to the centre of the material because the beam (in profile) forms an X shape, where it focuses in to a near point & then defocuses out again after that region. If you focus in on the top of the material, you will have bevelled cuts (ever so slightly angled edges) whereas focusing on the centre you’re more likely to have > shaped cuts (without such severe angles) which is less noticeable.

I imagine in a multipass run, if your z-height changed accordingly, it could be useful to focus directly on the top of the material (more power focused on a smaller area) & successively as it passes again & again it could refocus further into the material (after it has already vapourised the above layers).