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Hooben Elefant idea

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Old 08-13-2019, 06:31 AM
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1qaz
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Default Hooben Elefant idea

I am currently building a Hooben Elefant and did not like the way Hooben designed the front wheel tread tension set-up. To me It looks like the model is just relying on the friction of the nut & washer where the slot is to maintain the tread tension. This looks like it will slip and the treads will be loose along with it being a real pain to get back into the model to try and tighten the nut again.
I came up with a simple bell-crank that pivots around the fixed bolt and maintains the adjuster bolt wherever you want it. Another improvement is that you can adjust the tread tension from the bottom of the model by simply turning the 4-40 adjuster rod. A nut that is silver soldered to a angle is held in place with a pop rivet which allows it to pivot as the bell-crank moves up and down. I used some .080 brass sheet to cut the parts from and the 4-40 all thread is model airplane stuff, easy to make and I think it will make the tread tension stay put along with being easy to adjust if needed.
Maybe someone has already come up with a fix like this but just in case I thought there might be a Hooben owner out there that would benefit from this simple fix.
Note: the nuts are not tight in the photo, they will just be snugged down to the point that the wheel assembly can slip just a bit.
Larry B




Last edited by 1qaz; 08-13-2019 at 06:35 AM.
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Old 08-13-2019, 06:59 AM
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Pah co chu puk
 
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Nice engineering.
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Old 08-13-2019, 09:05 AM
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MAUS45
 
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Wow, I have the same kit and was looking to upgrade this as well. Thanks for sharing as I am all about not reinventing the wheel.
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Old 08-13-2019, 10:23 AM
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Yes I did this same for my King Tiger some years ago since the Tamiya 'brake drum' style slips.






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Last edited by heavyaslead; 08-13-2019 at 10:27 AM.
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