And now for something completely different. People have, as we all expect, come to the forums for help and guidance around everything to do with 3D printing. But, I don’t think there has actually been a challenge issued. So let me be the first.
In response to all the people who love FreeCAD and would like to see me use it (at least I think that’s why they tout it’s benefits), I spent last night and most of today trying to create a hanger for hanging purses and shopping bags from the back of car seats. It uses a headrest post to hold the hanger. I have attached the FreeCAD file for those who want to have a look (I had to upload it as a Zip because the forum software won’t let me upload FCStd files).
Here’s the challenge. If you look at the hanger in FreeCAD you will see that most edges are filleted. The ones that are not filleted are the problem. If I try to fillet them, FreeCAD generates errors in the Report View and then crashes, totally quitting. I tried v0.18 & v0.19. In particular, the line where the round sleeve meets the flat base cannot be filleted, like it is at the other end of the hanger.
One reason I chose this project to try in FreeCAD is because, in order to protect purses and such, I really think it needs to have the edges filleted and, truly, openSCAD just doesn’t do filleting well at all (I was warned, and those issueing the warnings are correct).
A 2nd reason is that virtually every car seat hanger I could find on Amazon and other sites has an opening to allow it to be fitted around the headrest post. My wife has had several of these, and they always end up coming off, which leads to the inside of the car being polluted with the residue of the blue language that comes out of her mouth. [SIZE=20px]?? [/SIZE]Thus, my design is solid around. It does require popping the headrest off the seat, but that’s a minor inconvenience, since it only needs to be done once.
A 3rd reason for choosing this project is that I believe it’s something virtually every forum member could use in their own life.
Once the filleting issue is resolved (which I’m sure all you 3D geniuses will do), I plan to fully parameterize it.
I’m also thinking of putting a notch in the clip end of the hanger, so that it will be easier to get a finger in to grab the purse or bag straps.
So, what do you think. Anyone up for the challenge?[SIZE=28px]?[/SIZE]
PurseHanger4car-HeadrestClipV5.zip (288 KB)