RC Tank Warfare community hobby forum

Hi,
I'm once again calling on your collective wisdom to help me solve another, niggling, problem.
How do I stop that, annoying, turret bounce on my HL Tiger? I thought I found a solution, by reducing the amount of play in the mechanism, but that, poor puny, rotation motor can't supply enough power to counteract the increased friction. So all suggestions will be welcome.
Sadly the turret nodding like a, slightly demented, over excited puppy spoils the illusion, somewhat!
Thanks in advance.

Hi jackeb ,
I must be lucky my Heng Long Tiger does not 'Nod' too badly when the tank moves....My Tamiya Tiger 2 was $h1t and the turret fell off or into the ring at every bump or bounce... it even used to 'ride up' out of the rotation ring gear and come only half off.
So I 'Dumped the Tamiya stuff' and on went a Heng Long unit. Now the Turret rotates properly and does NOT fall off Unfortunately the track tensioner mechanisnim is just as bad..(but that is another can of worms)

Back to your tank....have you tried measuring the amount of slack that is causing the nod then removing the turret top from the ring gear and marking around the edge of the turret bottom of it where it actually mounts to the black ring gear, and then very lightly sanding, to remove just enough plastic......I guess from your bit .......
>>I thought I found a solution, by reducing the amount of play in the mechanism, but that, poor puny, rotation motor can't supply enough power to counteract the increased friction.<< ....that you have ...and it failed....

1. So how about adding the thinest pieces of plasticard that you can find ...Just as little washers to the 3 mounting screwposts to give you back just a tiny bit of free play ?
2. Look at the rotation motor itself. Take it apart and try to increase the pressure needed to make the 'Slipper-clutch' work, that just might give you enough power to over come your increased friction ?? especially if you grease under the black ring where it turns on the turret bottom.
3. How about adding weights like flat lead tyre balancing weights or stacks of washers glued or secured inside to help to hold the turret in place. This would give a more centralised 'Centre of gravity' to the turret and so stop it rocking
I hope that one of these ideas might help.
Alb.

Cool. Thanks for that. It'll give me something to work on. Any suggestion on a suitable grease for plastic?
I've toyed with the weights idea. At the moment she weighs in at 4kg so I can up by a fair bit before putting to much strain on the electrics.
Laters.

Ah , the old HL jelly turret syndrome . I deduced the problem isn't really the loose play , more the fact that the hull top acts like a trampoline - I glued two brass 'girders' arcoss the upper hull , much better , and no extra weight / strain on the motor

Again cool. Another thing that had crossed my mind. Ive got some 10mm ally strips that I got from B&Q ( ) that I was toying with the idea of using to strengthen the upper hull...............Hmmm............ I can feel a solution coming on.
Thanks guys.

blimp wrote:Ah , the old HL jelly turret syndrome . I deduced the problem isn't really the loose play , more the fact that the hull top acts like a trampoline - I glued two brass 'girders' arcoss the upper hull , much better , and no extra weight / strain on the motor

Any chance of a piccy to show where you strengthened the upper hull?

Actually i went a bit overboard with the fix , but basically one bar went across the hull in front of the turret , and by moving the motor to the side , i put another bar across the back . Simples .