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Old 02-19-2017, 06:21 PM
MadManAndrew MadManAndrew is offline
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Default 2017 - Madmanandrew's Entry - DNF

Working on a unique entry that should technically fill all the requirements! Entry pic is last since I started all this back in January.
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Old 02-19-2017, 06:25 PM
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Pic 7, I love the vertical welding wall idea ... Did you use magnets or velcro? BTW. To enter you need a sign.... 2017 COOKIES... Oops sorry. Seen it in the last pic..
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Old 02-19-2017, 06:29 PM
MadManAndrew MadManAndrew is offline
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Pic 7, I love the vertical welding wall idea ... Did you use magnets or velcro? BTW. To enter you need a sign.... 2017 COOKIES
As I said in first post the entry pic is the very last one, it has the sign.
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Old 02-19-2017, 06:35 PM
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As I said in first post the entry pic is the very last one, it has the sign.
Sorry, all those other papers thru me off. (For a sec.) You snuck that one in. I was editing my first when you posted the response.
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Old 02-19-2017, 06:54 PM
MadManAndrew MadManAndrew is offline
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Sorry! Lol I like to have my blueprints handy!
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Old 02-20-2017, 12:03 PM
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I've been off and on about how I wanted to pivot the control arms. At first I wanted to use a 5/8 rod drilled for a cotter pin, but for some reason I just didn't like the idea of having cotter pins hanging out holding my control arms on. What I ended up doing was welding a nut to the end of a 5/8 threaded rod to make a 16" long bolt, then welding 5/8 nuts on either end of the control arm mounts on the frame. This way I have a good solid threaded connection on either end, but there's no unnecessary clamping of the control arm since the bolt head is clamping against the nut it's butted up to.
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Old 02-21-2017, 06:53 PM
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All four control arms mounted up. Time to order more parts.
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Old 02-21-2017, 10:45 PM
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FYI: Your first attempt was thrown to moderation (that's why you couldn't see it) because it was in the wrong section (for starters)...

Unfortunately, I can't qualify you & move this thread because I'm a fellow entrant...
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Old 02-21-2017, 11:09 PM
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Approved and moved
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Old 02-22-2017, 08:31 AM
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Approved and moved
Thank you!
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Old 02-22-2017, 10:37 AM
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Very nice.......much more ambitious than my project.

I wouldn't have done the threaded rod but that's just my pet peeve because the threads get worn down easily and then things get sloppy.
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Old 02-22-2017, 11:41 AM
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I wouldn't have done the threaded rod but that's just my pet peeve because the threads get worn down easily and then things get sloppy.
You're absolutely right man and to add on top of that the OD of threaded rod is actual a hair less than its nominal size so it'll probably have a bit of slop from the get go. I'm hoping it's negligible but if it's a problem I'll probably end up buying a set of dies and threading just the end of actual 5/8 rod. Fingers crossed it's negligible though.
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Old 02-22-2017, 02:34 PM
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Been working on this to try to pick a drive ratio. Given all the info at the top it spits out all the info at the bottom. The middle is just for conversions. It neglects rotational friction and inertia so the acceleration and times are over and under what real-word would be but it works to get an idea. The drive ratios should be spot on though.
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Old 02-27-2017, 03:29 PM
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Delivery of goodies from BMI today. The shocks were cheap and beautiful but they are so much stiffer than I thought they would be!
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Old 02-27-2017, 03:56 PM
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What was the spring rate on the shocks?
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Old 02-27-2017, 04:13 PM
MadManAndrew MadManAndrew is offline
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Didn't say http://www.bmikarts.com/Mechanical-A...11_p_1283.html
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Old 02-27-2017, 04:48 PM
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Well hopefully they work out for you. But like you said, they were cheap so I guess worst case scenario you have to buy another set.
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Old 02-27-2017, 04:59 PM
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Is that a differential? I'm interested to see how you'll mount/attach that with the, what I'll call "spring arms" for a lack of knowing the correct term.
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Old 02-27-2017, 05:12 PM
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It is a differential and I'm also interested to see how I construct the driveshafts for it. Lol I have some working ideas but anything great would cost a fortune so I'm hoping the macguyvr method will work.
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Old 02-27-2017, 05:29 PM
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Are those a-arms? I don't thing I have ever seen rear a-arm suspension with a differential. This will be unique for sure.
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