I hear you. Are the project m issues engineering issues or quality issues? I know they have quality issues as I've seen them in person. They don't look that good up close, but they function and will function for a long time. I personally don't want a project m, but if I wanted a wider camper shell thats the one I would get. The project m has a longer history, they are insulated, and they are actually much lighter than the tune m1. Someone just posted that their tacoma lb tune m1 weighed 660lbs. Thats insanely heavy for this category. 250lbs or more heavier than the project m.
Lone peak which is not a wide camper has a ton of engineering issues already. Their custom clamping system to hold the camper to the truck has already been failing which could cause a catastrophic incident killing someone on an interstate. There was also a recent post that is now deleted about some crucial CNCed mechanism that fell off while camping. I understand these are new companies but to argue that someone “went and spoke with the engineers” and they were impressed means very little.
Back to
@MR E30 s posts. The tune m1 and lone peak are bolted together square frames with no external or internal structure tying everything together. Internal being GFC and the triangle framing, external being fourwheel with skins. Now simply imagine building a picture frame and setting a corner on the ground and you applying your weight to opposite corner. The picture frame would break rapidly. Now imagine the same with an exterior skin screwed all around the perimeter of the picture frame, It would hold your weight and more. I don't really care if someone was impressed by another engineer in person, what impresses me is if what they build is actually built to withstand everyday abuses of driving down the road.
Also, what am I saying that is “far from reality?” These are all very real structural engineering problems.
Point number 1 about weight - I have seen that post about the weight, and every single other ones on that group. There was one dude claiming his Tune weight was 800+ lbs and that it Cat scaled his truck before and after Tune install. Turns out a Facebook member contacted Tune, and Tune sent him the official weight of this particular build (they weight every camper before install) at 550 lbs (on a full size with a bunch of options).
All this to say, this user data is wrong. Multiple full size Tunes have been officially weighted (with options) at around 550 lbs. Mid size in the 450s. Now let's be clear I consider this heavy, but now we are talking about an insignificant difference with Project M. Options play a major role as well (those huge tempered glass windows are heavy)
You see, this is the issue with Facebook groups and forums. People spread wrong info then they get repeated and we all loose from this (by we I mean the customer, who are in the market for a camper).
Point number 2 about Lone Peak - . Not only I followed all the posts, but I am also in the discord chat were issues such as the one you describe are reported in real time. They immediately (like in 48H) corrected the design and upgraded the t-nuts. They also have many who have already over 10K miles including tons very rough off-roading (Moab and Colorado trails) and never had an issue.
I personally think the speed Kyle has been addressing issues is mind blowing.
I do agree that these clamps should have been tested better and the T-nuts over sized. This sucks.
Last point about the bolting design: Is the design bad enough that this camper won't last long? I personally do not have enough information to say that (nor do I have enough information to say the design will last).
I am an aerospace engineer myself (and no, I don't work for Boeing...). The earlier comment about truck frames being welded for a hundred years and that if we could just bolt aluminum together we would do it means nothing. With that type of thinking we stay at the stone age. See, in Aerospace we don't do anything like in the car industry. Different designs for different applications.
Now about the Tune, it is my understanding that the design is different as they use 6063A-T5 aluminum (used in Aircraft seats and ground support equipment) hold together by injected composite corner brackets. This brackets have been tested by Tune to be significantly stronger than the aluminum extrusions they use. Having the extrusions inserted into those large brackets is very different than holding it together with just a bunch of bolts. Again like for the Lone Peak I do not have enough info to say if their design will last a long time or not.
You are criticizing an engineering design, yet you do the opposite of what engineers do: you criticize a design without having all the data needed to judge the design.
Where I do agree with you is that from a pure engineering perspective, welded can be stronger (if well made, as poor welding can fail, and welding can change the properties of the aluminum). In no way this means that the LP or Tune designs are bad or won't last. Plenty of car components are bolted together and lasts hundreds of thousands of miles (depending on cars, subframes, cross members) and same for aircrafts for parts that need to be removed (wing fuselage joints, landing gears). I mean, the fuselage of an Airbus A350 is bonded with adhesive, and it uses honeycomb composite panels for some interior structures and you guys come here and say the Tune adhesive will fail over time, honeycomb roof is a poor idea, and bolts loosen and so that camper won't last. All of those assertions are misleading. What matters is not if the company has chosen a welded design or a bolted one but how it has been designed and executed. I will choose a bolted camper properly designed and executed 100 times over a poorly welded one.
All in all, after seing all of those campers myself, I certainly would not choose the Four Wheel Camper, nor a GFC. I think the LP is a killer price point and much more practical than the GFC (the GFC is unusable for me with it's non space through bed design), the Tune is expensive but by far the most spacious and practical (t-track all over, long overhang over the cab meaning no inside overhang of the bed), the Rincon also looks great (bended aluminum sheets welded together could be very strong if well executed) and offers decent practicality at a medium price point. The Alucab is probably one of the most proven one so if you want proven and durable it's probably a good choice, although it's not light, not inexpensive and not very spacious.
The Tune is the exact same size as a $70K Supertramp camper. You can DIY the interior build and make it a 3 season Supertramp for a third of the cost (granted, different league of insulation but I am talking about living space).
There is no perfect choice. All have pros and cons. If I could buy a camper as strong as an Alucab, as light as the GFC and as spacious as the Tune for the price of a Lone Peak ($6000) I would buy it yesterday.