I was using two 50 pitch chains on a 4" track. Still have the tracks and one day I'd like to play with using solid blocks to see if the extra stiffness makes the track reliable, but that is a really low priority for me. Between motorcycle track days, my new touring bike, building furniture, and a girlfriend I really haven't had any time to work on my tanks. Some of my furniture projects are coming to a close so I've actually been gathering materials to finally finish my KV-2. Just bought some 8000mAH LiPo batteries, some 8 and 10 guage wire, connectors, and charger so I am going to get it running again soon. Most of the work I have left to do is finishing work. Gotta break the whole tank down and glue all the PVC together, fill the holes, build some detail items, and paint. The running gear is solid and tracks reliable at this point. The new batteries sure free up A LOT of space in the tank and weight.
Derek On Thu, Oct 29, 2015 at 3:09 PM, Frank Pittelli <[email protected]> wrote: > Derek's experience is the rule, not the exception. > > Based on my experience (which goes back to the original dual-chain bicycle > track) and the collective experience of everyone who has built, tested and > battled such designs in the last 15 years, the dual-chain design is far > more problematic than either a single-chain design or a link-drive design. > Lateral forces on the track immediately cause the chains to skew, which > increases the likelihood of jumping one of the chains off a sprocket tooth > in rough terrain. Guide horns help decrease the likelihood, but doesn't > decrease it enough to make the tracks reliable enough in our world (which > is, by far, the toughest test of scale tracks). > > When it comes to chain designs, size matters. Based on quite a few people > who have tried such an approach over the years, #40 chain is too small and > not rigid enough to be used as either a single-chain or dual-chain track > design in our operating scale and terrain. On the other hand, #60 chain is > so rigid that it has proven very reliable when used in a single-chain > design, thereby eliminating the need for a dual-chain design. > > That said, the design being discussed is the first time someone has used > pins that go from one side of the track to the other, using the track pad > itself to keep the pins parallel. This *could* provide the rigidity needed > to prevent chain skew in a hard turn, thereby preventing a dreaded > derailment. I say *could* because it all comes down to the stiffness of > the plastic pads and the amount of sideways movement allowed between the > pads and the pins. No amount of calculation or workbench testing will > provide the required answers. The track needs to be installed on a tank > chassis and driven through the roughest terrain possible by an operator > skilled in abusing vehicles to determine if the design is reliable or not. > > Battlefield-tested isn't a marketing slogan. > > On 10/29/2015 12:26 PM, Derek Engelhaupt wrote: > >> I believe I said the tracks might have issues staying on since they are >> similar to my design that I abandoned because they didn't stay on in >> high stress due to lack of the center guides. Even with the center >> guides, mine flexed too much side to side so they still came off the >> sprockets. >> > > -- > -- > 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.
