Sweet build. Its definitely coming along really well. At least much faster than my Abrams build, lol. Speaking of which.
I got something to show you guys this weekend on my M1 Abrams. I get the whole next week off away from work and will be beginning work on the body of my tank. Drive system is done, all it needs is wheels and tracks. But I will show in detail how I have geared down my motor and how all of my gearing works, seeing how I'm using my transmission for steering. Here are my gear ratios based on a 6.5HP engine with a max rpm of 3600 Engine / Clutch -> 1st spur = 10T -> 45T = 4.5 Second Pinion -> 2nd spur = 16T -> 40T = 2.50 Third Pinion -> Drive spur = 16T -> 40T = 2.50 Total Gear Ratio = 9.50 Drive wheel diameter is 4.5" min - 6.5" max, this will make top speed vary. Engine RPM = 3600 Top Speed ~ 6.75mph - 7.5mph @3600 RPM The middle of the Pinion/Spur set is what controls my steering, I don't know if any of you recall my transmission design or not. Here is a link to my site which I will be doing a complete overhaul to this weekend. But in there you will see my setup and how it works. www.freewebs.com/m1a2abrams Enjoy, and I will have lots more detailed pictures this weekend. On Oct 30, 8:33 am, "Paul Hilton" <[EMAIL PROTECTED]> wrote: > Re: [TANKS] Re: Le progressAs I haven't competed as yet, I'm not sure of the > minimum needed. From level, the BT-7 can manage about 7 degrees positive and > about 4 negative. The rules say 10 degrees positive is the maximum allowed. > > There have been a couple of home made markers used. I don't know how well > they work or how accurate they are. > > Whatever you choose, the distance between the feed tube and the inner surface > of the turret top is critical. In the BT-7 I toyed around with several > alternate magazine ideas before returning to simple gravity. There are two > powered feeders on the market that looked promising, The Cyclone and Warp > feeders. Both are overkill for what is needed. I had also toyed with the > idea of a spring loaded feeder. > > Paul H. > > ----- Original Message ----- > From: George Mastoras > To: [email protected] > Sent: Thursday, October 30, 2008 10:48 AM > Subject: [TANKS] Re: Le progress > > Yes it will be hard, even harder as I don't think I can buy a ready made > marker in Oz so have to try to make something so I don't expect any rapid > fire solution, if it can fire at scale speed which at a guess might be every > 6 seconds etc might be content but will see. > > Btw how much elevation do you guys actually need to compete against each > other, how many degrees of vertical movement would be enough for the barrel? > > George > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
