I used 6.3mm spring steel on the M113 (still under construction!). 5mm would be better I think. I will post details of it one day, but in short I welded a socket to the end of the spring bar, and then mated that to a hex head as a form of mounting. You can't really bend the spring steel easily, and want to avoid masses of heat or it affects the springiness :)
Ben ________________________________ From: rctankcombat@googlegroups.com [rctankcombat@googlegroups.com] on behalf of Derek Engelhaupt [tan...@gmail.com] Sent: Tuesday, July 31, 2012 7:14 AM To: rctankcombat@googlegroups.com Subject: Re: [TANKS] Re: suspension design Speaking of torsion bar suspension, anyone know how the simulated torsion bars are constructed on the 1/16 scale Tamiya type tanks? I've wondered if it would be possible to scale it up to our size tanks. I was able to rip my underwhelming suspension out of the KV-2 this weekend and put together a working replacement prototype, but I wasn't able to get it tested because I ran out of time. Derek On Mon, Jul 30, 2012 at 3:16 PM, TyngTech <steve...@gmail.com<mailto:steve...@gmail.com>> wrote: I'm sorry Doug. A torsion "spring" suspension just will not do for a T-72. You will need to develop a cheap and easily made torsion "bar" suspension to be true to form on a T-72! ;-) Steve "I'll be Counting the Rivets" Tyng On Sunday, July 29, 2012 8:32:09 PM UTC-4, RocketMan wrote: Hello – The trailing suspension arm on my Tiger takes a lot of abuse. It kept breaking. This is my latest and most robust attempt to solve the problem. It starts with a short length of ¼” steel. This will be the swing arm. I drilled a ¾” hole and inserted a short length of ¾” diameter steel tube. Zach, who many of you met at recent tank battles, welded it up for me. The bolt shown below acts as a stop for my torsion spring. [X] I pressed a sleeve bushing into the tube: [X] Then, I mounted the assembly to the hull using a shoulder bolt. The last photo shows the whole thing complete and mounted. You can also see my torsion spring and tension adjuster. [X] I’m pretty happy with the result and looking forward to trying it in battle. It’s sturdy and the motion is very smooth. If it works as well as I think, I’ll use something similar on the T-72. I may even offer kits like this if there’s any interest. - Doug -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com<mailto:rctankcombat@googlegroups.com> To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com<mailto:rctankcombat%2bunsubscr...@googlegroups.com> Visit the group at http://groups.google.com/group/rctankcombat -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
