Post by Dillzio on Apr 24, 2010 18:13:10 GMT 1
Hey all, I just found my old gearbox, and cut it down to make a brushless mount. I thought I'd take to opportunity to take down some measurements of the thickness ofwhere the screw-holes. That way, by simply attaching nylon spacers of matching lengths to the screwholes in the firewall, you can maintain the stock thrust angle. My plan is to have a piece of wood or perspex at the end of the nylon spacer, and have the motor mount connect to the perspex.
Here are the measurements. In terms of orientation, I have the front of the gearbox (the side that had the shaft sticking out from it) facing towards me.
Bottom Left 12mm
bottom Right 14mm
Top Left 14mm
Top Right 16mm
So, basically, you can make the spacers whatever size you loke, but the bottom right and top left need to be the same, the bottom left needs to be 2mm less, and the top right needs to be 2mm more. Hopefully this info will make making brushless mounts much easier.. I wonder it if might be worth increasing the thrust angle a little for planes with very large motors?
Here are the measurements. In terms of orientation, I have the front of the gearbox (the side that had the shaft sticking out from it) facing towards me.
Bottom Left 12mm
bottom Right 14mm
Top Left 14mm
Top Right 16mm
So, basically, you can make the spacers whatever size you loke, but the bottom right and top left need to be the same, the bottom left needs to be 2mm less, and the top right needs to be 2mm more. Hopefully this info will make making brushless mounts much easier.. I wonder it if might be worth increasing the thrust angle a little for planes with very large motors?
