I've been using the original “Sturdy Handles” before and they've done their job, but then I saw "JSB's X-Handle" and I liked them, but they had some issues with the design. So I ended up doing the following:
Removed the top mounting bolts in favour of a “lip” that goes into the 2020 extrusion like the original “sturdy handles”
Added M3x20mm BHCS to mitigate a weak spot in the design where the handle meets the top part, where it "allways" cracked.
Made modifier blocks to add denser/stronger types of infill around the problem area mentioned above.
I've also made a second modifier block that makes it possible to add "fuzzy skin" to the handle without compromising the structual integrety while still giving that nice grippy texture (for those who wants it).
I've also made a version of the handle that's stripped of the “X” since I just don't understand why it's there at all other than nonsensical “branding” (?) , to each their own i guess!
This is the sliced view of mine when I use 40% Support Cubic infill on the handle, 40% 3D Honeycomb on the infill modifier & Countor fuzzy skin on the fuzz modifier:
To-do List:
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In case I forget to upload any eventual updates i make to the design to Printables, the latest released version should always be avalible on my gitub!
The author remixed this model.
Adressed some design “flaws” with it having a stress spot where it broke where the handle meets the top part. Also made a optional design without the “X”.