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Posted (edited)

Hi,

I've started to work on a small tank, and I would like to gather ideas for suspension.

What are my options? Is there any in this scale?

Current RC features:

  • driving
  • turret turning
  • main gun elevation

Thanks,

Zoltan

post-16970-0-75031300-1400264490_thumb.jpg

Edited by bekesizoltan
Posted

This tank looks really small, I'd say 500-600 grams top. That's very light for torsion bars. Note that with 10 road wheels, each torsion bar only handles 10% of total weight.

Posted (edited)

with the suspension that I posted it only takes 2 of the counterweight bricks to make the suspension work for 5 road wheels per side .(not sure how much weight That is but it's lighter that a battery box).

Edited by Tommy Styrvoky
Posted (edited)

The suspension got used on this http://www.mocpages.com/moc.php/378351

And I planned to use that suspension for a RC fig scale tank but after finding out that the battery that I planned to use (old 9v 4x8x2 battery) but it turns out that that battery doesn't work with IR receivers. The only way to make it work would be to modify a PF cable and I wasn't ready to do that.

Edited by Tommy Styrvoky
Posted (edited)

i reckon, technic axles for torsion bars are still too stiff for the weight a lego tank can have.

I beg to differ.

Edited by Sariel
Posted

i think that if you make the chassis 5 studs longer it would be possible to have torsion bars because the swing arms for the torsion bars would be too short for the current length of the chassis (they would have a minimal effect in flotation). With longer swing arms ad the longest torsion bars you could get them to work but to fit them in the hull it would be best to offset one side of road wheels so the torsion bars can be staggered like on real vehicles .

heres 2 examples of times where I have implemented torsion bars

the panther had 8 stud long bars with 4x2 lift arms as the swing arms. it weighs 7LBs

the STuG III thats in front has 10 long torsion bars with 4x2 lift arms as the swing arms. weight is composed of 1 AA battery box, and 2 XL motors

14001930647_af748540b8_b.jpg

Lego STuG Ausf. F 1/15 (RC) by Tommy Styrvoky, on Flickr

Posted

Small tank... looks good. You'd be able to get suspension in at that size, I have it a (prototype) model which is only really a concept as I hate doing aesthetics...

And if you'd like a challenge you can try and go smaller than this:

8116772371_155a86dcbc_c.jpgTank by legomuppet9, on Flickr

I think this is the smallest RC tank (Only RC function is moving around but still) around, I haven't seen any smaller, but then I have dived into the depths of brickshelf really so I don't particularly know...

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