Some gears and testing for laser-ablating and -marking ...

[VDX]

... did some testing with the turning head and BeamConstruct - here the scale object in the program:

Rundgravur-Programm.jpg


Laser-marking:

Rundgravur-lasern.jpg

- here a video of the mark- and feed-sequences - https://vimeo.com/265710539



And the results (the topmost part was not lasermarked, but milled and coloured):

Rundgravur-Massstab_kl.jpg

Viktor

[buffo]

It is just me, or are the measurements different for the laser marked parts vs the milled and painted one? Surely they should line up, no?

Adam

[VDX]

Hi Adam,

yes, they are different

The ring on the top has an angular scale with 360deg on 95mm diameter (so 10 deg equals to 8,29mm), the other two have a centimeter-measure -- so 8,39 : 10 mm ...

Viktor

[buffo]

Ah... OK, cool - that makes sense.

And I have to admit that the laser marking looks really good!

Adam

[VDX]

... I'm actually building/programming a "focus shifter" for our lasers - here an image of the needed components:

Focus-shifter.jpg


And a video, showing the online distance adjusting - in the final application the measuring spot (red laser dot) is in the center of the working area:

https://vimeo.com/274862763



The "slave CNC-controller" is based on an Arduino Pro Mini and runs parallel (electrically OR) to the main controller - so any of them can control the height- or turning axis (or two more, if needed) ...

Viktor

[VDX]

... I'm actually programming a simple exporting/lasermarking interface, to send/exchange the vector data from CAD to the laser driver.

Here is a video, how it's done with the CAD/CAM programm "eSign":

https://vimeo.com/277609716

In Corel ist's similar through a macro.

For programs, not capable to use external tools or macros, this has to be done with exporting the data and manually starting the interface - when the interface is already running, then it's as simple as pressing the "Reload" button after exporting, to get the last changes

Viktor

[VDX]

... expanding the "CNC-slaves" for homing and referencing - instead of big/complex CNC-controllers, a flock of "nano-slaves" for each task could be much more effective and easier to expand or update too

https://vimeo.com/277961084

Viktor

[dar303]

I just found this thread, impressive and inspiring work!

[VDX]

... thanks! - here a video showing the "final" marking of the rotating scale:

https://vimeo.com/293633529

With the result attached ...

Viktor

[VDX]

... pure silver can also be marked quite well directly (without "aids" like CerMark or similar)

Viktor