[RFC] Rocketry Workbench

[Kunda1]

Successful OpenRocket import!

Woohoo!!!

[grandcross]

Rocket Workbench with OpenRocket imports now available for testing. Like the rocket shown, this is an alpha meaning there may still be significant bugs so save important files.

rwb_alphaIII.png (146.47 KiB) Viewed 1771 times

Installation instructions are available here: https://github.com/davesrocketshop/Rock ... TESTING.md

The current testing branch is dev3_0_alpha1_01092023

The OpenRocket imports do not currently support the following features:

- Clusters
- Pods
- Parallel stages
- Non structural components such as parachutes and mass objects
- Materials, colors, decals, etc

[grandcross]

New alpha branch of the Rocket Workbench available for testing. Installation instructions are available here: https://github.com/davesrocketshop/Rock ... TESTING.md

The current testing branch is dev3_0_alpha2_01202023

Many imporvements in this release:
- file save/restore bugs fixed, including from previous versions
- autosizing components
-nose cone, transition diameters
-centering rings
- TTW tabs
- improved main menu bar
- autodiameter for conformal and V rail guides
- many minor bugs

[protoCall7]

Hi @grandcross,

I have been working on a fin design in Rocket Workbench, and I have it to a point where I'm pleased with it and would like to 3D print it. Unfortunately, I'm running into issues with the cross sections of the fins where they come to knife edges, such as in the tapers and aerofoil. I'm not sure if this is a feature request, or if I'm just not seeing a setting somewhere, but is it possible to set a minimum width on the cross sections so that I can have them come down to a rounded face at 0.2mm wide or so instead of a knife-edge so that the models can be sliced and printed properly?

If this is a new feature request and you'd prefer I open up a Github issue, I'd be happy to do so.

Thanks for all your work on Rocket Workbench!

proto

[grandcross]

Hi @grandcross,

I have been working on a fin design in Rocket Workbench, and I have it to a point where I'm pleased with it and would like to 3D print it. Unfortunately, I'm running into issues with the cross sections of the fins where they come to knife edges, such as in the tapers and aerofoil. I'm not sure if this is a feature request, or if I'm just not seeing a setting somewhere, but is it possible to set a minimum width on the cross sections so that I can have them come down to a rounded face at 0.2mm wide or so instead of a knife-edge so that the models can be sliced and printed properly?

If this is a new feature request and you'd prefer I open up a Github issue, I'd be happy to do so.

Thanks for all your work on Rocket Workbench!

proto

It's software... anything is possible!

Sounds like a great idea, but it's not a small change. It will take some time. I would prefer a GitHub issue if you wouldn't mind. That will also get you updates as the enhancement progresses. And thanks for the feedback.

[grandcross]

And done!

New FreeCAD release supporting minimum edge sizes for fins.

minimum_edge2.png (22.47 KiB) Viewed 1362 times

minimum_edge.png (158.73 KiB) Viewed 1362 times

[Kunda1]

Bravo!

[eddiebe]

Hello, 1st, thanks for all the work that's been done on this! I've been looking for a way to use openrocket files for 3d printing for a long time.
I've run into an issue where what I see in FreeCAD after I open an openrocket file is not what is exported to any other format.
I just grabbed a random .ork file and was going to use it as a fin can test.
This is what I have in FreeCAD;

Screenshot 2023-10-15 171736.jpg (225.04 KiB) Viewed 895 times

And this is what I get when I export it to a .STL

Screenshot 2023-10-15 172103.jpg (146.33 KiB) Viewed 895 times

I get the same output no matter what file type I choose to export it as.
Any suggestions?
Thanks

[grandcross]

Nothing I can think of off the top of my head. Are you able to attach the .ork so I can have a look?

[grandcross]

In the absence of your specific file, I searched for one similar. I was able to produce this model similar to yours

mosquito_FC.png (43.37 KiB) Viewed 814 times

I'm not sure what steps you took to export your file to .stl but it's very easy to do wrong. If you select the root node (Rocket in your diagram) and export, you'll get a file but it won't be correct. My results are different than yours but still not correct

mosquito_BAD.png (101.97 KiB) Viewed 814 times

The fundamental problem is that these aren't a single shape, but multiple independent shapes. You have to combine them into one first. To do this switch to the Part workbench.

The short description of the process is that you select the objects you want to "fuse" into a single object, and produce one solid object. In this case though the steps aren't as simple as that. For example, if I select as follows:

mos_select1.png (7.95 KiB) Viewed 814 times

When I select the fusion operation

mos_fusion_operation.png (8.46 KiB) Viewed 814 times

I produce no fusion and I get this error in the report view:

mos_error.png (7.21 KiB) Viewed 814 times

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