belt length ?

[pilot_bear]

can anyone tell me the belt length for
a. mini-t
b. trex-xl
or any other 450 size heli ?

thanks

[Adrianli]

Here : http://www.daddyhobby.com/forum/show...&highlight=lkh


For timing belt, they calculate the number of teeth, not the length.

[pilot_bear]

thanks for the info.

I did not make myself clear, apologies.

i intend to drive 2 same gear at constant speed so the tooth number is
not a problem.

i had tried king2's and cp-belt's belt, both length too short for my project.
30 size is too big for my gear. so have to stay in-between.

trying to get something that is already available in the market.

btw, i just need a rough measurement just like in the photo.

thanks.

[Super-Hornet]

The belt used for TRex are rated as MXL for industrial standard. Different rating has different teeth angle and the size of the angle. U have MXL, XL and etc.

In MXL, the distance between 2 teeth is around 2mm. The normal marking for MXL is like MXL472 which mean 472 number of teeth. Since u know the distance between 2 teeth is 2mm, thus the circumference for MXL472 is (472-1) * 2mm = 942mm.

To get the length for MXL472, then 942 / 2 = 47.1cm

Thus if u want to use TRex kind of belt, from the length u want, u should able to derive the MXLabcd number. Then using that number, go and ask those belt shop to see whether they have or not.

SH

[pilot_bear]

oic, now the previous thread make sense to me.
thanks.