I did a mock up of the JD backpack based on suggestions from @WBS00001 and @ptp from my C3PO JD head post.
It has a male clip on the bottom to slide into the 3rd middle female slot inbetween JD's legs to anchor the backpack cover. It also has two posts that slide into the top two screw holes of JD to help steady the cover.
There is a dual female slot on the back where you can mount 2 things like sensor modules or light weight items.
I opted not to add a male clip at the top of JD as the other anchor point. I don't think it's needed for a cover, but I may make an alternative version and incorporate that idea. I feel like it would only be needed if you wanted to do something extreme like mount a 3rd foot or 2nd head.
There are open slots on the top, bottom and sides for wires and the switch side has a big enough opening "most" fingers should be able to still access the switch.
I have not print tested it yet, I wanted to share the rough draft first for feedback.
The backpack as it would appear on JD:
The backpack by itself.
I welcome suggestions and input. I think this is a community project.
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To access the wires you just take the entire backpack off. The unit as a whole is removable, even if you put screws in through the side like you suggested previously and demonstrated in the video, you can still remove it and considering one objective is to help hold the cables down and cover them with the backpack, having a door in the back I don't think would be helpful.
Its an interesting idea. I suppose you could add some sort of hinge and make it like a door. I just would not personally recommend it.
thanks for the advies.cant wait to see the first jd with his backpack on.
I really like the 2 part design, it printed very nice. And since it is two parts, I've actually grown fond of Nomad's idea for a hinged back pack. If I can find a small enough hinges and latch, it should be fine.
:D love it. i was thinking ontop the back side an edge and below maybe small screw.
There's really no good way to put screws in the middle like you suggested. The four corners could easily accept screws.
ah,something that opens easy would be good.
Something is off with the slots at the bottom. They came out a little small. Either my printer errored or there is an error in the .stl. Just an FIY. I'll check this and correct it soon.
I updated the .stl's and am now happy with the improvements I made. The slots are correct now on the bottom, (I'm not sure how they shrank) but I redid the bottom, I strengthened the top with a little flare, extended the side skirt to cover the posts and strengthened the sides and the posts.
If you print it in two parts like I do, it'll accept screws better now.
Full JDBackpack5.21.16Full.stl
Bottom HalfJDBackpack5.21.16Bottom_Half.stl
Top HalfJDBackpack5.21.16Top_Half.stl