HobbyWing 10BL120 ESC mount Arrma
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Description
This is a mount that enables you to put a HobbyWing 10BL120 brushless ESC into an Arrma Senton using the stock mounting hardware (minus the screw for the switch mount, that is no longer necessary.)
It should fit any of the other Arrma 3s cars that use the same chassis type as the Senton (Granite, Big rock, Vortex, Infraction, Typhon) as well as their brushed variants. I say should because i do not have any to test with, but going by online images there should be enough room for even the shorter wheelbase models.
It is a very simple model, i made it because i am replacing the stock Spektrum BLX100 ESC that came with the car due to wanting something with a 7.4V BEC instead of the 6V only that the stock unit does.
The fitment/tolerances of the ESC itself are very good using esun's PLA-CF, but the on/off button mount is slightly more loose. I recommend using double-sided tape on both either way, to make sure they do not escape into the wind.
Note: Adjust the infill to fit your taste, i did it at 97% with cubic infill because having many small pockets of air helps to insulate things, and i am curious to see if this will help at all (might be a waste of filament, but curiosity killed the cat and all that)
UPDATE 18.10.2025
Based on information gotten from a comment, there is a chance you may have to cut out a small part of your sideguards/remove them all together. I apologize if this has caused inconvenience to anyone - I forgot to take that into considerations as my Senton uses the Scorched RC mudguard/inner fender kit which meant i had to remove my original sideguards.














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