Texture FeatureScript revisited

jacek_zagaja

This feature is based on rows and collumns so I'm trying to add many small V shaped slits but it's very slow. Any advice?

https://cad.onshape.com/documents/94912631e39359b4bede5cf5/w/77fc2511297d4cf96ca00617/e/635eb165e17cb86adb308603?renderMode=0&uiState=63bff5159344207bbcd397c7

MichaelPascoe

Hi @jacek_zagaja

Texture works by patterning many copies of solid bodies. In this case, you need to revolve a texture. Currently, this isn't built into the Texture custom feature. Fortunately, this is a cylindrically based part so we can do this with Onshapes native features by the following steps:

• Sketch one of the V profiles at the start of the curve.
• Curve pattern the sketch feature along the curve. Make sure it is set to feature pattern.
• Revolve remove all of the patterned sketch faces from the main part.

https://cad.onshape.com/documents/72dfb677015720a6a8be07c5/w/c928ac5b49dacb437fef0f4b/e/b600709c479a4dac26aef9c2?renderMode=0&uiState=63c032348c95152072eb4f0a

jacek_zagaja

Michael, I'm affraid it won't work. Let's say you have 0.5-1mm circles tangent to each other. Over 3000 count Onshape refuses to make curve pattern.

MichaelPascoe

Hm, this is probably one of those fail safes so that the system doesn't crash. Try breaking it up into segments. If you split the main path up, you could pattern it one segment at a time. This will get around that fail safe.

jacek_zagaja

I've tried and it was slow and main Revolve I could not see then, hide/show stopped working so I deleted document and will try again later :-)

jacek_zagaja

Why I can't select a pattern sketch but can only select sketch entities for revolve operation? It's slow for 3000 entities.

MichaelPascoe

If its too slow with one revolve, try breaking it up into 6 revolves. 500 entities per revolve. Out of curiosity, why do you need this many grooves? Is it for a render?

jacek_zagaja

I'm going to 3D print this texture and determine best looking depth. I hardly see texture so far in Prusa Slicer.

EvanReese

If you're printing, you don't need all of the parts to actually be joined in Onshape. Booleans like that, either to remove material, or add parts together, take a lot of time to compute. Here's an option that creates grooves by splitting the part and chamfering it, then making a composite part of the result. It's pretty quick to generate.  https://cad.onshape.com/documents/68e8b7fc6aca007aa3c00ea9/w/234efc17703155013816dd0f/e/b3b15913182365257f5864d9

jacek_zagaja

A very good idea Evan!

jacek_zagaja

Not the greatest effect on the print

  

MichaelPascoe

It may not have been what you were going for, but nice print! You could probably tweak your print settings to spiral instead of stopping in the middle of the face.

EvanReese

I think there's a setting in cura to make the outer wall a spiral instead of having a seam where it jumps up in Z height

jacek_zagaja

Never heard - spiral or with seam. Seam is bad looking with larger nozzle, random seam can look worse (blobs or dots). All depends on extruder precision. Movements are usually good. Finally I gave up and printed without grooves.