I used a double chain setup at one point. It worked...OK. On occasion it would come off. The problem was that the tracks didn't always track straight due to the friction with the ground. With the attachment chain, the chain is so stiff that there is no deflection which is why it works so well and the large sprocket engagement area.
Derek On Sun, Sep 14, 2014 at 4:08 AM, Loren <[email protected]> wrote: > Chris, IIRC that was more or less how the first chain tracks were made. I > refer to the article: > http://www.rctankcombat.com/articles/track-systems/ > > The original fix to the derailing was to skip the sprockets and go to a > friction drive. I'm going to make larger sprockets that will engage the > track itself, not the chain. I'm thinking plywood might be enough, > definitely test some of that before plunging in to cut aluminum though, > even if I need metal in the end. > > Jean, if you only got an eighth of an inch between tracks, it's never > gonna work right. Looking at the M1 Abrams(my build), the tracks are > designed so the lugs on the outside the sprockets engage have space between > them roughly the same as the length of the lug. This gives enough space > for a decent sprocket tooth to engage the track. I'm not doing it quite > like that, so the gaps are thinner, but you do have to make them big enough > for a decent sprocket tooth. The Abrams has about 11 teeth on the track > sprockets, even scaled down, that means a lot more than 1/8" between track > pads. Gotta have the space to make it work. > > I've messed around with this a bit in Solidworks, and I'll mess around > some more most likely before I start making stuff, and do some simple tests > before going whole hog. > > -- > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to [email protected] > To unsubscribe, send email to [email protected] > Visit the group at http://groups.google.com/group/rctankcombat > > --- > You received this message because you are subscribed to the Google Groups > "R/C Tank Combat" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
