Yrkeshögskolan means “vocational training”, and I have no insight into that. Jönköping University, Chalmers and Lund do research in the field of AM, but if you can study a vocational or regular course there, I also can’t say.
It’s part of Jönköping University
Well, that’s a solid university, so it is likely that what they offer is good.
i am not a 3dprinter but this materials sounds promising, Fiberon PPS-CF, maybe a bit pricy
If you know of problems, please begin a new thread and provide some detail as to what the problems are.
Thank you,
– Dale
I will have to start using extrusions again to be able to remember what was wrong with them.
This macro gives me a square tube as a result: I’m not able to find what’s wrong.
(Rhino 7, up to date)
Do you use NURBS extrusions or Rhino’s proprietary extrusions? This may be a possible reason. They typically have a different UV direction.
Messed up UV direction is inconsistent across different types of extrusions. Cylinders also have the UV direction reversed.
I use Rhino proprietary extrusions. But I don’t want to bother you: just curiosity…
That’s what it’s designed to do - the _ChangeDegree 1 part will change the degree 2 arc profile into a degree 1 linear profile with 4 points, i.e. a square.
The inconsistent UV direction across different types of geometry was discussed many times during the years. Here is an example:
I recommend you to remove the last tickbox to turn off the extrusions. You can’t take advantage of the control point editing on extrusions, as well inability to use macros on them such like the one to change the degree to 1.
That’s ok but yet: why does, that same macro, produces a round tube in @Rhino_Bulgaria case and a square one in my case?
Unpicking the “use extrusion…” as he suggested didn’t work for me: still a square.
UPDATE
Ok @Rhino_Bulgaria and @Helvetosaur , I don’t know why but, today, removing the last tick-box to turn off extrusions changes the result, so I confirm what Bobi said: with that option on the result is a square, without is a round tube
Still quite a mystery for me but, hey: it works.
Rhino’s extrusions use a different approach for their geometry - they are primitives with numerical values instead of utilizing a typical NURBS surface structure with control points. They are already degree 1 along their extrusion direction, so no need to change their degree to 1. Since the UV directions of the extrusions are reversed (compared to Pipe), my macro fails to convert them properly.
My macro is made to fix the structure of the Pipe objects that teceive degree 3 and 4 rows of control points. The macro rebuilds the pipe object to degree 1 with 2 rows of control points.
Thank you !