Originally shared by Mark Wheadon I've modified my script to allow an image to

Originally shared by Mark Wheadon

#VelocityPainting

I’ve modified my script to allow an image to be wrapped around models in a cylindrical fashion. The pattern still goes right through the model but radiates from the z axis rather than going through the model like words through Blackpool rock. This is sebastianrosca’s tower on thingiverse (TOWER by sebastianrosca - Thingiverse) combined with a rough stone texture tweaked for high contrast.

It didn’t work initially – way too subtle, but then my 12y/o daughter said “why don’t you make the fast bits faster” and I realised that although even faster doesn’t change the look of the print in my tests, my tests were changing the velocity gradually, and actually a lot of this effect seems to be from the low pressure created during a sudden change to high speed.

So, 13mm/s low speed, 60mm/s high speed et voila it works! There are small holes in the print from the high-speed under-extrusion effects, but they’re worth it for the end result, and I’m sure that can be tuned.

So, subtle, but neat! #3Dprinting

@Faberdashery_Ltd Orange Fizz PLA, 210C, 13/60mm/s print speed. @Think3dPrint3d Kossel Mini.

That is a very cool looking effect!

Your daughter has a bright future :+1:

This could work very nicely on my Death Star model… Hmmmm

I should have mentioned: if anyone has a programming background this is on GitHub: https://github.com/MarkWheadon/velocity-painting

So cool! Great application. Does it show if painted? Or is it light reacting as it goes thru?

@Brook_Drumm It’s a bit of both. The under extrusion effect means you can feel the pattern with your fingers but it’s subtle enough that it may be masked by a layer of paint.

Bump mapping for FDM!

Hmm… gives me some ideas about importing existing bump mapped 3D graphics models…

wow… this is amazing!

interesting

Could be a nice for my lure making.