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Jan 15, 2019, 06:48 PM
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Mobula7 Dual Battery Bay (3D Printed)


The M7 is made to work 1S or 2S, but I can't see me running it 1S, since all I have to do on 2S inside is to limit throttle a little in my xmtr and I still get the power of 2S. With that in mind, I drew up a battery bay that would hold both large (450mAh and 550mAh) batteries along with the 260mAh stock batteries, including 300mAh batteries. Here's what I came up with for my 2S setups:

Name: M7 Weight.jpg
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This 3D Printed bay is attached by clipping off the bottom of the current battery bay, leaving 1mm worth of a tab on each of the four arms and simply clipping it in (I use a tiny drop of hot melt glue on each tab just because. Also, it's easy to scrape off the hot melt glue if I want to detach the bay. ). The bay allows easy access to the USB plug.

Name: M7 Large Batteries Bottom.jpg
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Here's what it looks like from the bottom with the large batteries

Name: M7 Large Batteries.jpg
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Right side up (on a green cube spacer so that you can actually see something)

Name: M7 Spacers.jpg
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Spacers so that the stock batteries and 300mAh batteries can be used with this bay and still fit snug

Name: M7 Small Batteries Bottom.jpg
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Here's what it looks like from the bottom with the small batteries

Name: M7 Small Batteries.jpg
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Right side up

Name: M7 All Batteries.jpg
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Finally, a pic with all four different sized batteries in the disconnected bay

Name: M7 Tabs.jpg
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For clarification, the tabs from the old battery bay
Last edited by Ssayer; Jan 16, 2019 at 10:09 AM. Reason: Added a pic of the tabs
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Jan 15, 2019, 06:52 PM
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Just a quick note, I found that upping the Throttle MID to 0.70 and adjusting the Throttle EXPO to 0.42 makes this quad sing even with the larger batteries!
Jan 16, 2019, 01:03 AM
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VERY NICE!
Could you design one just to fit 2 x 250mah batteries?
Jan 16, 2019, 08:25 AM
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Originally Posted by 3DFun
VERY NICE!
Could you design one just to fit 2 x 250mah batteries?
Yeah, just hollowing out this thing and dropping in some inserts for the 250mah batteries wouldn't be that tough.
Last edited by Ssayer; Jan 16, 2019 at 10:19 AM. Reason: Done
Jan 16, 2019, 09:32 AM
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Hah, that was easier than I thought. Ok, it's drawn up. I'll put it on Thingiverse and link to it here.
Jan 16, 2019, 10:19 AM
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Ok, the stl files are on Thingiverse here:

https://www.thingiverse.com/thing:3360080


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