Expedition Vehicle Build // Building Betsy PART 6 - Torsion Free Subframe.
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- čas přidán 28. 08. 2024
- We finally got Betsy’s TFS done, and it works perfectly.
The work took weeks to complete, as getting out to the farm everyday wasn’t possible. Without the help of our sponsors, it wouldn’t have been done. Thank you to Umdwebo projects (Design), Fast Flame Profiling (Steel, cutting, and bending), National Stainless-Steel Centre (Stainless bushes and pins), and Plastem Engineering (PFTE Bushes and spacers) for assisting us with the most crucial part of our build.
The TFS allows the chassis to flex without putting any forces on the box/home/habitat. We’re planning on going to some pretty extreme places, and cracking our home in the middle of the desert just isn’t on the list.
Follow:
Facebook: / numinouse
Instagram: / numinous_expeditions
Patreon: / matchesonthemap
To read more about the project please visit:
www.NuminousExpeditions.co.za
Music credit:
Track 1: Nico & Vinz - Am I Wrong
Track 2: Jeremy Loops - Dreaming Again
Track 3: Milky Chance & Tash Sultana - Daydreaming
Track 4: Will Evans - Kindfolk
Excellent and keep the dream alive, everything takes time and every project has a beginning and an end, you have started so the end of building your house on wheels are in sight, keep it up.
This is beautiful man!!!
Thank you!
Nice work guys, my only concern is the possible chassis failure under the pivots as you have now point loaded the chassis rather than spread the load along its length.
No doubt the pivots are well and truly over engineered and will last forever, but you may want to look into a way to help spread the load while still allowing the chassis to flex.
What a lot of guys are doing is installing short lengths (upto 1m) of square hollow section between the pivots and the frame to spread the point load out.
The SHS is then bolted directly under the pivot and connected via a spring mount away from the pivot to allow the chassis to still flex when required, but spreading the load when flex is not required.
Nice jop
Cool build. Dude, what is this song??? I started watching the vid and the song came on and I was consumed with nostalgic vibes.
Hey man. Nico and Vinz - am I wrong.
Great jam, have a great one👌
@@NuminousExpeditions got it on repeat while I’m detailing my car right now 🤣
Hello !! My name is Mario, live in Bs As Argentina. We discovered it one day! La verdad Congratularon for to Big job!! We have a familiar project similar to the ones we used But that's a lot of way to get back to the road. I have one to consult: when you know the duals, another type of tire or any modification? I enjoyed arming the Subframe system as it does!! If you have any information to help them, I Will be eternelly gratefull to them!!
I wish you much success in your project!!
If you visit Argentina, do not hesitate to let us know! you'll be welcome.
Hi there Mario! Thank you for the comment and for following the journey. Good luck with your build, I know it is a lot of work, but it is well worth it!
In the end we kept the dual tires as we could not afford super single wheels. Our tire size is 10.00R20 and they run well on most terrains. Also, they are easier to find in far-off places than the single wheels (12.00R20).
Most people go for a single wheel, especially when planning to 4x4, but the dual tires do have their benefits. We've never gotten stuck, crossed rocky roads, deep ruts, some mud and sand and so far so good.
The only issue I could pick up is that the dual wheels at the back picked up and wedged a rock between the two dual tires. I had to remove the wheel in order to remove the rock. Other than that, no problem.
Thank you for the open invite
Hope you sleep well!
Thanks You!! well see you sometime!!!
you forgot to give me information about subframe😢.
It helps me to write to you to practice my English❤
@@marioaguilar5308 Sorry Mario, my mistake. The subframe was designed by umdwebo projects. You can find them on facebook.
It was made using a thick steel, all the components were precision cut, and it is working extremely well. If you would like to build your own, you're welcome to look at our plans that we've put on Etsy: www.etsy.com/listing/1562634430/professionally-designed-torsion-free
Hope that helps, if there is any more info you would like on the system, you're welcome to send another message
Thanks You so much!!!
It really was an excellent job they did!! I will surely have doubts!!
In relation to the subframe, I cannot understand the reaction of the side pieces when the subframe falls to the sides... You are very kind to answer me!!! Thanks again!!!
@@marioaguilar5308 Hope all is well. Think of it like a flat step ladder. When you flex a step ladder, the FRONT and BACK will flex, but the center will stay level. The same happens to a chassis. The front and back of the chassis flexes underneath the box, but the center does not. The "side pieces" control the level of the box, or in other words if the truck leans to the left - the box will the also lean to the left, but when the chassis flexes, only the front and the back of the chassis will twist. I hope that makes sense.
Nice job! Curious about the diameter of the tilt shafts and bushings. I am starting on my subframe this week. Yours is definitely built very heavy duty.
Hey man, thank you. I think the diameter of the tilt sharft centre holes are 50m, then you have the teflon bushings, and if i remember correctly the ID of the bushes is +- 41mm. good luck with your build
Nice job on the subframe. Along the length of the frame rails are you pivot points (left & Right) centered in the middle of the frame? The look further toward the cab than the rear. Just curious how you or the engineer decided the placement. Thank you, again great job!
Hey Robert. We tried to get the centre/middle /L&R components as much to the middle of the chassis - measuring from the back of the cab of the truck to the end of the chassis and marking the centre point. We then realised that there were a couple of obstructions and had to redesign the mounting plate to clear them and had to move them slightly off centre in order to mount. Was the only option. It turned out to work perfectly. The pivots are all mounted as far to the ends as possible. The really important thing here was to have them as square as we could get them (so all of the right being exactly spaced as all on the left) otherwise the floor mounting would present a big problem.
Thank you for the positive feedback. I hope that you can make sense of my answer and good luck with yours. Have a great one
Nice job but hell weight is obviously not a consideration, looks like 20mm plate
Hey, thank you. No, weight was not a concern on the tfs. It is the one component on the truck that I would recommend over engineering. It's a 16mm plate, and with the truck now complete, I'm happy that we did it the way we did.
being the foundation of the entire house, we have peace of mind that it will hold up throughout the ten year trip. Also, works really well and has definitely saved the box from flexing. Have a great day and thanks for following the build
Am I correct that the front and rear pivot points, let it pivot left to right? Then how does the center pivot allow it to pivot front to rear of the front and rear pivots are bolted to the frame?
Hey man.
Not entirely. Try to imagine the bottom (mounted to chassis) sections pivoting as the chassis flexes, but the tops staying aligned with the middle section mounting. Ie the box will stay square, but the chassis can move freely underneath.
You were using quite thick steel and a very small welder I hope you got good penetration on those welds. Did you do any test welds and then after cut, polish, and etch the weld the cross section of the joints to visualize just how deep the penetration was? I probably would have chamfered the pieces and done a multi-pass weld. Is there a reason you did not use a grinder to clean off the mill scale where your welds were going to be? If your entire house was going to riding on those pivot brackets I hope you were extra meticulous about those welds.
Hi there Daniel.
Thanks for the input.
The house is doing well on those pivot brackets, we'll have to wait and see if they hold up for the entire trip. If they do (64countries is a pretty good test) then I suppose I can say that we did a good enough job, if they don't it will be one heck of a lesson learnt. Thanks man.
Have a good evening
@@NuminousExpeditions Best wishes on your expedition.
Nice work and inspiring. Which model is this MB ?
Hey Emil,
Thank you, it's a 1995 MB 1517 4x4
@@NuminousExpeditions Thanks
Hi there, Great job. I see you had the components cut by a 3rd Party.
Do you have blue prints or CAD drawings for the torsion free components.
Did you measure the chassis angle (twist) in degrees more or less when you jacked the frame up?
I tried to measure the twist on another and it was extreme and had a 10deg twist on the chassis for a 60cm wheel lift..
Good morning Marco. thank you. Yes, I do have drawings/blueprints for the system, but you would probably need to design yours according to your truck, as ours was specifically designed for Betsy. I did not measure the degrees of twist, but it's quite a bit. Good luck with your rig.
@@robinlewis1591 The reason I asked is that all your components appear to have been precut. Looked like a great way to get the parts. Potentially they should all be very similar. Chassis rail width being the issue. I have measured the box tilt on many units and have found the most extreme to be 12deg. So what ever you make needs to accommodate the 12degrees at the outer edges of the box. It would be really helpful to be able to see what you did. It looked good.
@@marcovonpickartz8251 yes, all the sizes we're pre cut by a third party (Fast Flame). Also keep in mind obstructions. We had to get around the mounting points for the rear suspension (you'll notice the middle unit was cut so that I could install going over the suspension mounting). The frame will be welded up in January, and I'll make sure to get a clear video of the flex when the frame is mounted, so keep an eye out. if you were looking for some assistance with the design or blueprint for your truck, I would advise speaking to Paul from Umdwebo projects (you should easily be able to find him on facebook). Have a great one
@@robinlewis1591 You may not have noticed, but I am from the other side of the planet.
Where does one buy a schematic book like that?
Hi there.
That is a printout from our digital designer. You can contact him if you'd like, but he would have to design a system for you based on your chassis sizes etc.
His name is Paul from Umdwebo projects. You should be able to track him down on FB