topic Re: Prismatic Option in Fusion Design, Validate & Document Forum

Prismatic Option

APOSTOLISZEV — Thu, 19 May 2022 12:33:44 GMT

Hello,
I am trying to turn my STL file into a Solid body, but the prismatic option doesn't work properly.
I don't want the faceted option, beacuse to want to offset my object.
Does anynone have any idea how I can make the uploaded STL solid body?
Thanks a lot,
Apostolis Zevgaras

Re: Prismatic Option

wmhazzard — Thu, 19 May 2022 13:17:26 GMT

Solid model the part from scratch, use the stl for reference only. Converting meshes to solid does not work well for many models so if it fails, don't use it. If there were no threads on it then it might have worked.

Re: Prismatic Option

APOSTOLISZEV — Thu, 19 May 2022 13:20:46 GMT

I just want the thread part, because it fits perfectly in the application I want.
So there is no possibilty that i can make it solid?

Re: Prismatic Option

Joshua.Aigen — Thu, 19 May 2022 13:43:57 GMT

If your just looking to use the threads from the STL then model the part in Fusion, then change it to a mesh, then use the combine command to unite the two meshes.

Re: Prismatic Option

APOSTOLISZEV — Thu, 19 May 2022 14:43:20 GMT

Ok thanks a lot.
But there is no option to make it prismatic?

Re: Prismatic Option

Joshua.Aigen — Thu, 19 May 2022 15:08:52 GMT

Sorry I didn't take the time to look into the STL file, but now that I have I see why my suggestion might not work. I tried repairing the mesh as there are some nonmanifold surfaces and the result looks to already degenerated to the point where the threads would no longer work. All the Mesh to Brep conversions I have done threads have never remained useable after the conversion. The solver is not to the point where it can interpret the spiral and maintain it, even my experience with Geomagic a software meant specifically for this type of application it would be very labor intensive to create all the face groups and specification to have this work. You are much better off remodeling the part. Here is a shot of just the repaired surface no conversion.

Re: Prismatic Option

Joshua.Aigen — Thu, 19 May 2022 15:36:27 GMT

I'm trying to do a prismatic solve on only the outer threaded section using a plane cut on the mesh body. But I was thinking if this is a standard fitting or coupler would you be able to find a step file on McMaster-Carr or similar sites?

Re: Prismatic Option

APOSTOLISZEV — Fri, 20 May 2022 10:23:04 GMT

Thank you a lot for your interest.
I have find the STL file from Thingiverse.
URL:

https://www.stlfinder.com/model/1-2-m-x-1-4-f-adaptor-fitting-g4hZRsKD/1952454/

Re: Prismatic Option

HughesTooling — Fri, 20 May 2022 11:20:19 GMT

Attached is a 1/2 to 1/4 NPT adaptor I found on McMaster-Carr that seems to be the same thread, the thread in the STL is not modelled correctly anyway. Maybe you can modify this part.

Picture of the solid model and the mesh.

Re: Prismatic Option

APOSTOLISZEV — Fri, 20 May 2022 12:14:50 GMT

Thanks a lot, that was very helpfull.

Re: Prismatic Option

APOSTOLISZEV — Wed, 30 Nov 2022 15:48:13 GMT

Hello Mark,
I am trying to convert 2 mesh files into a solid body. I insert the mesh file -> then i Generate face groups -> then i convert the mesh. But when it comes the time, my spiral is destroyed.
I want a 53mm male-female connector.
Does anyone have a solution to this problem or has a 53mm male female connector?
Thanks a lot.

Re: Prismatic Option

APOSTOLISZEV — Wed, 30 Nov 2022 15:48:54 GMT