Originally Posted by
CliffordK
The chainring photo came off of the internet.
The editing was done with Gimp. FREE !!!!
It is a bit of a funky program to use
I chose "select by color" (white), then pasted it over the top of the original image. Then used "Layer Rotate" about 2°, I think.
Circle and square drawings are easiest accomplished by using the selection tool. Then choosing "select boarder", then "bucket fill"...
It is a pretty complete program, I'm not sure why it doesn't have the basic shape features that one might otherwise expect.
(BTW, I added another drawing above).
I didn't recognized it. It didn't look like a solid model or rendered 2D drawing, was just curious. I do design work (thermoforming tooling and packaging equipment). I'm not an engineer, trade school and 20+ years of making machines run to end up where I am now. I don't know the software you mentioned, I use PTC CREO and AutoCAD but those are crazy for a hobbyist to buy. The free version of Goggle Sketchup is pretty good. I'll check out the Gimp too, thanks.