|
Die-Cast Conversions Tech. The tricks of installing drive line and electrical components into die-cast models. |
|
Thread Tools | Display Modes |
#20
|
||||
|
||||
Re: 1/16 Oliver Dozer Conversion
I hope I don't jinx myself but I think I figured out the problem I was having with the sabertooth!
First I have to say, I can't believe the dimension engineering help desk never asked or suggested this... All I got from them was some nonsense about regen and battery capacity, they even suggested that I try a 2000mah battery Ya, where am I gonna put that sucker in is tiny dozer? Anyway, maybe this will help folks with similar trouble. I was about to see if a slot car motor would replace the motor on the back end of my gear drive units when I realized the carrera digital motors always use capacitors across the motor leads to suppress noise. So I shortened the motor leads as much as I could, added a cap to the pos and neg poles and grounded them to the can. I also wrapped the signal wires from the blabber tooth to the RX with foil. Here is a link to one site that I referenced to help with the solution. https://www.pololu.com/docs/0J15/9 If you guys are thinking, "I always add capacitors to my brushed motors" you won't hurt my feelings if you say so. I just never even thought about it, but it makes sense now! I used to race associated 1/10 scale pan cars on a paved oval and we NEVER installed the caps on the motors back then and that was with old Futaba fm radios and old novak speed controllers. I have run two battery packs with not a hint of trouble. I bet on a bigger conversion where stuff is not literally right on top of each other, the problem might not happen. When the blade servo had the jitters before, I always thought, that seems like radio interference? Thanks for putting up with my rant... Jim Last edited by Rvjimd; 07-31-2016 at 11:37 PM. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|