[Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
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[Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Dowel pins are used to precisely join parts, and the holes for the dowel pins are marked with a special symbol (not on the label, on the actual hole, similar to how threads have special appearance in norm conforming drawings). I've been adding them in Inkscape (not a hard task, but a bit of a hassle) and they're pretty simple. I think that they should be added to the Extension Tools toolbox
For those who don't know, the dowel pin symbol looks like this: (I've also attached the SVG file that was used as a source)
For those who don't know, the dowel pin symbol looks like this: (I've also attached the SVG file that was used as a source)
- Attachments
-
- dowel_pin_hole.svg
- Source file
- (3.78 KiB) Downloaded 74 times
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Good idea That's also a COG (center of gravity) symbol, right ? Then, once implemented, it could be used as such as well.ToniTen wrote: ↑Thu Mar 03, 2022 9:01 am Dowel pins are used to precisely join parts, and the holes for the dowel pins are marked with a special symbol (not on the label, on the actual hole, similar to how threads have special appearance in norm conforming drawings). I've been adding them in Inkscape (not a hard task, but a bit of a hassle) and they're pretty simple. I think that they should be added to the Extension Tools toolbox
For those who don't know, the dowel pin symbol looks like this:
dowel_pin_hole.png
(I've also attached the SVG file that was used as a source)
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Worth opening a Feature request IMO
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Please mark thread [Solved]
Want to contribute back to FC? Checkout:
'good first issues' | Open TODOs and FIXMEs | How to Help FreeCAD | How to report Bugs
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Sorry, I did not see this thread earlier.
Find attached a macro creating dowel pin symbols at the center of selected circles. Workflow:
- open a TechDraw drawing
- select one or several circles
- start the macro
Please test the macro and give me further desires and comments.
Find attached a macro creating dowel pin symbols at the center of selected circles. Workflow:
- open a TechDraw drawing
- select one or several circles
- start the macro
Please test the macro and give me further desires and comments.
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
I tested it. Works really nice. But would it be possible to extend its functionality so that it can be used for the center of gravity symbols as well ? This would require placement in an arbitrary location or in the COG computed by the software (but the latter approach can be tricky).
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Find attached a macro creating a dowel pin symbol at the center of gravity of the illustrated shape. Workflow:
- open a TechDraw drawing
- select a view illustrating one shape
- start the macro
The macro is working correct if only one shape is illustrated in the selected view, because the center of gravity of the first shape is calculated.
Please test the macro and give me further desires and comments.
Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Is it really common to have the center of gravity (COG) on a technical drawing? Should it be the projection of the object's COG or the COG of the projection?
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Re: [Feature Request] [Extension Tools] Add Dowel Pin Hole symbol to drawing
Good questions. From what I know, there are no specific rules for that and COG is not included in most of the typical drawings but it can be useful in some cases. For example, one may need to make a simple drawing of a large structure (e.g. heavy equipment) showing just a few important dimensions and COG (or multiple COGs - one for each part) for the purpose of stability evaluation.
It should be a projection of the model's COG, that's what we usually want to find in such cases. It can be difficult to implement this for assemblies but maybe it could work at least for a single body.