My version of axle support plan B |
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Olddawgsrule
Senior Member Joined: 20 Sep 2017 Location: New Hampshire Online Status: Offline Posts: 1014 |
Topic: My version of axle support plan B Posted: 12 Aug 2019 at 1:10pm |
I read further along and see someone did ask the same question. Understand the points made for bending the steel.
Looks like my second thought was better.. Glad to see you folks went through that and worked through it. Thank you for posting the link. Now to read more of it.
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6288 |
Posted: 12 Aug 2019 at 12:22pm |
My alternative is a bit more complicated since I fabricated brackets. However, the process of bending the angle using a tow chain and hydraulic jack would work if you simply wanted to bend it and then use the U-Bolts to clamp it in place. See my mods for how I did it. Edit: This is the specific post about that: http://www.rpod-owners.com/forum_posts.asp?TID=7712&PID=124460&title=our-escapod-mods#124460
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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Olddawgsrule
Senior Member Joined: 20 Sep 2017 Location: New Hampshire Online Status: Offline Posts: 1014 |
Posted: 12 Aug 2019 at 11:07am |
Interesting thread and do like what you've done to get outboard support to the axle. In another thread (and I think mentioned above) is your axle re-enforcement. I ask, vs. having the angle bent, could you place a 1-2" section (piece) of the 1/4" steel in the middle, then clamp the ends? My mind says that would increase the support, but also says I've added stress already and possibly weaken it. |
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Posted: 09 Aug 2019 at 2:24pm |
My solution? It does not require any welding. Just a 2x2x3/16 or 1/4 inch inch steel angle crowned in the center and clamped to the bottom of the axle tube at each end using 2 ubolts (4 total) each at a 45 degree angle to the vertical on opposite sides on the diamond axle tube. The ubolts are square, 1/2 inch dia with 3.5 inch jaw spacing. Here are the parts and where I bought them:
Www.uboltsdirect.com Order ID: 306166791 (5T12-3.5-SQ) S08 - 1/2" x 3 1/2" Inside Width $4.50 X 4 = $32.00 (5T1216) (Length: 6") +$1.00 (DN12SUW12) (Add Nuts & Washers: 1/2" Deep Nuts & U-Bolt Washers) +$2.50 (B2162FF) U Bolt Tie Plate - 5/8" Hole X 3 1/2" Inside Width $10.50 X 4 = $42.00 Be sure to measure your axle tube between the torque arms and subtract 1/4 inch so you have 1/8 inch clearance on each end when you bolt the angle up. The crown is 1/4-3/8 inch and has to be pressed into the el not the flats. If you have a trailer or frame shop nearby with a press they should be able to do it no problem. When you bolt the angle up keep the ubolts loose until you get all 4 nuts started. |
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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bhesse
Newbie Joined: 30 May 2019 Location: WA Online Status: Offline Posts: 9 |
Posted: 09 Aug 2019 at 1:58pm |
Can you share your plans/drawing/parts list?
this looks like an easy mod that the earlier axle support, just need a welder :-)
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2015 RP-178
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Posted: 12 May 2019 at 8:57am |
You have the 100% right. Welding those extensions on the frame tubes isn't the best idea. The frame tube is going to get a lot of torque applied to it that way because the bump load doesn't act through the center of the tube like it does using the normal risers. So the frame tubes will tend to want to rotate outward at the bottom. |
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Posted: 12 May 2019 at 8:32am |
Take another look at the first video. The axle is tied down by the chains on both sides, which go from the axle, over the jack, and back to the axle on either side. So the jack just tensions the chains and pushes on the axle. Nothing should move or come off the ground. The angles the chains make with the axle need to be kept to about 45 degrees or so as the first video shows. Shallow angles will just result in the chains sliding along the axle. So, you'll end up bending a couple foot sections of the axle a little at a time. The jack will probably need to be at least 10 tons capacity. I think its actually pretty safe if you leave the wheels on, which you'd want to do anyway so you can see the camber angle. If the jack slips out of the chains it will just fall down. Chains aren't like wire rope or cables, they don't really stretch much so they're not going to fly around if the tension is released. Even so, if you try this, stay off to the side of the chains while operating the jack, and take it slow. |
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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lostagain
Senior Member Joined: 06 Sep 2016 Location: Quaker Hill, CT Online Status: Offline Posts: 2587 |
Posted: 11 May 2019 at 4:33pm |
That back yard trailer realignment video looks like an accident waiting to happen.
And the attachment of the frame extension in the video by Happy makes me wonder whether welding the extension to 0.1" thick frame walls is really going to be strong enough to support the new axles. But this is something for our highly qualified engineers and metal crafters to weigh in with their views. If I was going to try to put a new axle on our Pod with attachment points further outboard, I think I'd like to use some kind of a box or channel iron base attached under the existing frame that would not twist the frame members and would be strong enough to have its attachment points further outboard. But this is something that our very capable engineers and metal crafters should weigh in on. Sadly, they didn't teach me any of that stuff in law school.
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Never leave footprints behind.
Fred & Maria Kearney Sonoma 167RB Our Pod 172 2019 Ford F-150 4x4 2.7 EcoBoost |
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marwayne
Senior Member Joined: 25 Oct 2011 Location: Edmonton AB Can Online Status: Offline Posts: 1002 |
Posted: 11 May 2019 at 4:12pm |
I have to disagree with the weight the WDH puts on the trailer axle, I tow with a Tundra. I weight my pod with WDH and without, with the WDH on the pod weight 150# more
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If you want something done right, do it yourself.
2011 RP172, 2016 Tundra 5.7 Litre, Ltd. |
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Happy Tripping
Senior Member Joined: 27 May 2014 Online Status: Offline Posts: 473 |
Posted: 11 May 2019 at 3:39pm |
I'm one of the people who have a bent Lippert axle, but am resigned to just going thru tires more rapidly because of the estimated $800 replacement, there is no available axle-straightening shop around me.
I just literally stumbled over this you-tube video, I have no idea of the reliability/accuracy of the guy's talk but it sure is interesting. |
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