Is 3-D printed part strong enough?

[DLBezaire]

I’m new to 3-D printing, and would appreciate some feedback. I designed an auxiliary handle to open the screen door on an RV. The attached file was created in SketchUp and exported to .dwg for upload here.

The blue parts in group “Existing” show the relevant pieces of the door. I plan to add the four items in group “New”. For the “Push Rod” I’ll use readily available brass rod. I would like to 3-D print the three green parts – two guides and the new handle itself.

My question is, am I on the right track at all? If I have the assembly called “Handle” 3-D printed, will it be strong enough to press down a screen door latch?

Thank you in advance for your help!
Screen door handle.dwg (297 KB)

[steven_10]

Hi,

I have just had a look at your CAD file, and i think 3D printed parts should be strong enough for your application!

the main weakness when 3D printing is the “layering” where these can separate when under tension, but i think your application has minimal tensional loads so should be ok. i would just make sure that who ever prints these for you uses a high infill %, i would probably go for 50% (this is the rage by which you choose if your part is hollow inside or solid, 100% infill would be solid).

only one way to find out for sure!..lol

hope this helps

Steve

[DLBezaire]

Thank you very much, Steve. I realize that I have to refine the design and undoubtedly make a prototype or two, so it’s really encouraging to hear an experienced person say that the approach has merit. Thanks again!