Grant wrote: > I was wondering, have you had any springs come out of the recessed grooves > in the hull?
Funny you should ask. I had one spring pop out during the last Gettysburg battle. I think it happened while I was fighting my way over an 8" log. I don't know why it popped out because the swingarms do a very good job of capturing the springs in place. I will note that the missing spring did little to the performance of the Cromwell, in fact I didn't notice the missing spring until after the days battling. I will be implementing a more secure form of spring retention over the winters overhaul. Regarding suspensions. I guess it's about time to write the definitive article on R/C Tank Combat suspension systems. I personally know that my design IS THE BEST TANK SUSPENSION ever invented but I think I can highlight other suspensions with a somewhat open mind. ;-) Suspension builders, if you would like to send me a quick synopsis of your system and any pertinent details that may not be readily apparent please do so. Any ramblings on what lead to development of a particular system or feature would be nice, also pics or diagrams would be helpful. You can send stuff to my gmail account at [email protected]. Steve Tyng > > Well, the inventive juices are flowing now. Considering what you've > mentioned, I'am going to experiment a bit with a variable rate spring > system, perhaps longer springs, stops on the side of the hull, altered shape > aluminum trailing arms, etc. > > I really like the compression spring swing arm suspension system. It seems > to be an elegant, yet simple solution to suspension. > > I'll test out the above ideas and see what happens. > > Does anyone else have any ideas on the compression spring swing arm > suspension system used on Tanks T #040 & T#059? > > I'll play around and let the group know my findings. > > Grant > > ----- Original Message ----- > From: "Steve Tyng" <[email protected]> > To: "R/C Tank Combat" <[email protected]> > Sent: Wednesday, October 07, 2009 5:04 AM > Subject: [TANKS] Re: Tank #T040 & #T059; "Christie", Compression Spring, > > Swing Arm Suspension. > > Grant, > > The design has held up well. The only mods since construction (and > which I need to document) are that I added upper stops to the > swingarms. This prolongs the life of the springs which were getting > distorted due to repeated bottoming out of the suspension (due to my > habit of trying to drive over anything at speed). The stops consist > of short pieces of fiberglass rod added to inside the suspension > springs. The rods were an expedient and if I were to build again from > scratch (or during a major overhaul) I'd probably use an aluminum bar > bolted to the outside of the hull that would stop the swingarms on the > upper arc. Even with the stops the springs still get bent out of > shape over time so order extra ones when you finalize on the springs > that work best. The non-precision flanged ball bearings I used for > the hull side of the swingarms have loosened up a bit since first > built, thus the arms have a little play side-to-side, but everything > still works well. > > Overall I'm very happy with the way the design has worked out and > would use it again in another tank. > > Steve Tyng > > On Oct 5, 11:48 pm, "Grant Mahalek" <[email protected]> wrote: > > Steve/Tom, > > > I'am thinking of using your swing arm suspension system in my next build. > > > I'am interested in what you've learned and was wondering if you might > > share your experiences and offer any suggestions. > > > Thanks, > > > Grant > > Northern Barbarian (getting set to build....first snow) > > __________ Information from ESET NOD32 Antivirus, version of virus signature > database 4488 (20091007) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
