Thanks for the explanation Carl. I know that Taigen makes a sprocket that fits the bill but do not know if they will fit the HL GB either.c.rainford73 wrote:Hi BarryI've been working on this situation behind the scenes with the help of Mr Sassgrunt and MichaelC so here's where I'm at.
After almost cutting my hands off and dismantling a couple of pairs of plastic Mato sprockets I've been really working on this.
Sassgrunt has sent me a pair of Mato gearboxes. No the Mato sprockets don't not fit the Heng long final drives from the gearboxes so I've come up with a interim plan.
The Heng Long metal sprockets will work with the Mato tracks if that are wide enough
So what I've done while tinkering around trying to make the Mato gearset work with another test set of Heng Long/Taigen ones is this....
Take the Heng Long sprockets apart in two halves.
The Mato sprockets are about 2.5mm wider. My solution is to place a metal spacer about 2.5mm thick inside between the two halves and they worked! The two halves have a male and female that allow the two parts to "lock" together. The narrow spacer slows this function to still work and once they are tightened all runs smoothly. If the spacer was a bit larger the two halves would not seat so this was a big relief!
My first go with this setup failed because I used a 2mm spacer and it was just too narrow causing the tracks to grab and jump.![]()
I used longer screws to make up for the space and that allows you to get the same tight fit on the gearbox.
Carl
Barry