[Kartbuilding] thanks

[Stephen Burke]

Hi Ami,

Thanks for the DWG File and Photo. The design looks good. You have put a
lot of work into it!

Reverse is difficult.
It would be best if you could get a simple gearbox. However gearboxes can
be very heavy and waste power.
I created an image (attached to this email). You could use a set of
(more!) pulleys, and twist the v-belt. This combined with a tensioner arm
would allow a reverse option. The v-belt would wear quite quickly however
as it would be twisted against itself. 
It is an idea to think about.

I hope it helps. If you get any more photos of the tractor it would be
good to see them.

Best of luck,
-steve


On Thu, 26 Apr 2012 13:29:33 +0300, Ami Rosen <>
wrote:
> Hi Steve /
> 
> Attach a file of my design for your comments pls .
> Do u have any idea how to make the tractor move revers .....?
> A simple gearbox ?
> 
> Sorry for my poor English , U.K. left Israel 65 years ago
> I was only 5 years old that time ....
> 
> Best regard
> 
> Ami
> 
>  בתאריך 24 באפריל 2012 22:12, מאת Stephen Burke <stephen at sburke.eu>:
> 
>> Hi Ami,
>>
>> Thanks for your email and good comments on the kartbuilding.net
website.
>> It sounds like you made a good project in that tractor!
>>
>> Best of luck,
>> -steve
>>
>>
>>
>> On Mon, 23 Apr 2012, Ami Rosen wrote:
>>
>> Hi
>>>
>>> thanks for your great site !!
>>>
>>> Its helping me to design a crawler tractor ( Caterpillar D4 ) 1 meter
>>> long .
>>>
>>> using Briggs & stratton 4 hp verticle motor , v belt , ect.
>>>
>>> Ami Rosen
>>>
>>> Israel
>>>
>>
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