look at that I have the same kind of welding hood .I painted flat black over the flames I didn't want the world to think I was flaming.
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Project Quadrotrac
- Thread starter Steinbruchsoldat
- Start date
Steinbruchsoldat
New member
Continued working on the cage today:
Wasn`t really happy with the notching on the mill, so i brought out my old notcher that i built a few years ago. Worked a lot better:
Put in the rear cross:
Front should be strong enough like this:
Also wanted something like a roof rack on it:
Then i started with the lights. Got 8 of those xenon lights that i`m going to use:
Had to mount the rotating light first to check for clearance:
Unfortunately there`s not enough room, so i could only mount one :
Made a protection bar for it:
Here`s a total:
Also started cutting some toolsteel for tomorrow. Really looking forward, wanted to build this for a long time:
Wasn`t really happy with the notching on the mill, so i brought out my old notcher that i built a few years ago. Worked a lot better:
Put in the rear cross:
Front should be strong enough like this:
Also wanted something like a roof rack on it:
Then i started with the lights. Got 8 of those xenon lights that i`m going to use:
Had to mount the rotating light first to check for clearance:
Unfortunately there`s not enough room, so i could only mount one :
Made a protection bar for it:
Here`s a total:
Also started cutting some toolsteel for tomorrow. Really looking forward, wanted to build this for a long time:
Steinbruchsoldat
New member
It was finally time today to build something i wanted a long time ago:
I think you got it, i made a set of dimple dies. This is how it works: Drill a pilot hole:
Punch the hole:
And dimple it:
The result:
This one is a gusset for the light protection bar:
Made two sets for now:
First real work was a gusset for the engine mount:
I think you got it, i made a set of dimple dies. This is how it works: Drill a pilot hole:
Punch the hole:
And dimple it:
The result:
This one is a gusset for the light protection bar:
Made two sets for now:
First real work was a gusset for the engine mount:
Steinbruchsoldat
New member
Fabricated some gussets today:
Made a sparetire mount:
And started with the driveshaft: Bought one from a Jeep because i was told it would have enought angle:
Well, that`s by far not enought:
Didn`t want to scrap it again, so i thought of something:
Had a new boot for it. Unfortunately the cv joint fell apart when i was trying to install it. Took me the better part of the afternoon to get it back together:
Then i started cutting some (high strenght) steel:
And turned the connector:
Made a sparetire mount:
And started with the driveshaft: Bought one from a Jeep because i was told it would have enought angle:
Well, that`s by far not enought:
Didn`t want to scrap it again, so i thought of something:
Had a new boot for it. Unfortunately the cv joint fell apart when i was trying to install it. Took me the better part of the afternoon to get it back together:
Then i started cutting some (high strenght) steel:
And turned the connector:
Steinbruchsoldat
New member
Spent the better part of the day finishing that jeep driveshaft thing:
At this point i realized that it`s not going to work. Piece of shit Jeep driveshaft cost me 2 days of work, i was about to lit everything.
Then i decided to do it like i originally wanted and hope it`ll hold up. So i used a cv-joint from a fwd car:
That`s the carrier bearing on the joint nut:
Test fit of the rear part :
And made the front part:
Finished:
Let`s hope it`ll hold up...
At this point i realized that it`s not going to work. Piece of shit Jeep driveshaft cost me 2 days of work, i was about to lit everything.
Then i decided to do it like i originally wanted and hope it`ll hold up. So i used a cv-joint from a fwd car:
That`s the carrier bearing on the joint nut:
Test fit of the rear part :
And made the front part:
Finished:
Let`s hope it`ll hold up...
there is some real craftsmanship there.
You are doing awesome work. Just out of curiosity, are you planning on going into production? Seems like too good of a design and an aweful lot of work to limit it to just one machine.
Steinbruchsoldat
New member
Thanks guys.
I'm not building more than one unit. Theres just no use for it here in Europe, nobody would buy it. I also just don't have enought time or room to build for someone else. I'm already thinking of my next project...
But, i'm planning on moving to Canada or Alaska in a few years, then i'll probably looking into building custom tracked vehicles per request.
Julian
I'm not building more than one unit. Theres just no use for it here in Europe, nobody would buy it. I also just don't have enought time or room to build for someone else. I'm already thinking of my next project...
But, i'm planning on moving to Canada or Alaska in a few years, then i'll probably looking into building custom tracked vehicles per request.
Julian
Steinbruchsoldat
New member
Started welding it today. To get some airflow going i took a blower motor and hooked it up to a battery charger:
Started with the joint:
Still regaining control on my right hand, so no welding porn this time:
Made some gussets:
And welded them in:
Had some help to remove the cage. My mounts worked out like crap, need to change that:
Removed the body frame:
Pulled the engine:
Everything apart:
Started welding:
Started with the joint:
Still regaining control on my right hand, so no welding porn this time:
Made some gussets:
And welded them in:
Had some help to remove the cage. My mounts worked out like crap, need to change that:
Removed the body frame:
Pulled the engine:
Everything apart:
Started welding:
Steinbruchsoldat
New member
Made a diff cover first:
And welded a few hours:
Nice to have a welder with 100% duty cycle at 200amps...
Going to build a tranny cover tomorrow and probably give it a shot of paint...
And welded a few hours:
Nice to have a welder with 100% duty cycle at 200amps...
Going to build a tranny cover tomorrow and probably give it a shot of paint...
Steinbruchsoldat
New member
Made a transfercase and brake drum protector today:
Got everything out of my way:
Made some gussets for the axles:
Finished welding the axles and put the gussets on:
Got everthing ready for paint:
After shooting some paint:
Got some nice led strobes to go on the rear car:
Got everything out of my way:
Made some gussets for the axles:
Finished welding the axles and put the gussets on:
Got everthing ready for paint:
After shooting some paint:
Got some nice led strobes to go on the rear car:
Steinbruchsoldat
New member
Changed my plans quite a bit today. First i wanted to finish the rear car first, but i talked to a buddy today who is a car body and sheetmetal guy. He said he has a week off work now and doesn`t know what to do. I said great i got some work for you. So he started pulling out the windows of the cab:
While i put the rear car roughly together:
Then we turned it around and rolled it out on it`s own wheels for the first time:
Need to clean that mess when the cab is inside the shop:
He started working on the door first, here`s the marking for the cut:
We both were curious what`s behind this ghetto fab panel. Looks like they just put it over the ripped apart door lock:
While he was working on the door i started getting the chassis table level and building the frame:
While i put the rear car roughly together:
Then we turned it around and rolled it out on it`s own wheels for the first time:
Need to clean that mess when the cab is inside the shop:
He started working on the door first, here`s the marking for the cut:
We both were curious what`s behind this ghetto fab panel. Looks like they just put it over the ripped apart door lock:
While he was working on the door i started getting the chassis table level and building the frame:
Looking good
Made a diff cover first:
And welded a few hours:
Nice to have a welder with 100% duty cycle at 200amps...
Going to build a tranny cover tomorrow and probably give it a shot of paint...
Wow.
Like butter.But I have to ask- How much is this unit going to weigh and where are you going to run it??
David
Steinbruchsoldat
New member
To be honest, those welds are about the ugliest i ever did. This is because of the ligament rupture in my right thumb. I`m about to learn again how to use my right hand and i`m not up to my usual welding right now. 
Yes, this thing will be pretty heavy, but also almost bulletproof. This is what i`m shooting for. My goal is to be able to roll it over withput any real damage. The chances that i`ll be able to run it in real deep snow, where a lightweight design would be neccesary, are really small. It`ll be mostly used in dedicated offroad places, so weight means traction.
The frame is about the heaviest part, but we were still able to lift it with two guys. The engine is alittle bit on the heavier side. I`m guessing about 120lbs for the frame, 200lbs for the engine and transmission, 60lbs for the cage. Probably 600-900lbs on the rear car when it`s finished and less on the front one...
Yes, this thing will be pretty heavy, but also almost bulletproof. This is what i`m shooting for. My goal is to be able to roll it over withput any real damage. The chances that i`ll be able to run it in real deep snow, where a lightweight design would be neccesary, are really small. It`ll be mostly used in dedicated offroad places, so weight means traction.
The frame is about the heaviest part, but we were still able to lift it with two guys. The engine is alittle bit on the heavier side. I`m guessing about 120lbs for the frame, 200lbs for the engine and transmission, 60lbs for the cage. Probably 600-900lbs on the rear car when it`s finished and less on the front one...
Steinbruchsoldat
New member
Started building the frame:
Got rid of all the axle accessories:
Shortened it:
And put it in the frame:
Then we put up the "may tree":
After that i had a couple comrades from the fire department help me to bring the cab in the shop :
Had to build the driveshaft first, to set the axle position:
Also was able to open up the roof door:
And removed the guard from the window, so there`s no jail feeling any more:
Got rid of all the axle accessories:
Shortened it:
And put it in the frame:
Then we put up the "may tree":
After that i had a couple comrades from the fire department help me to bring the cab in the shop :
Had to build the driveshaft first, to set the axle position:
Also was able to open up the roof door:
And removed the guard from the window, so there`s no jail feeling any more:
Steinbruchsoldat
New member
The cab is to tall for the crane, so i used a ratchet strap:
Cut of the front part:
Placed it on the frame:
Changed the frame a bit for the front end loader:
Tacked the cab on:
Started rebuilding the front part:
Finished:
Then i cut off everything that i`m going to rebuild:
Cut of the front part:
Placed it on the frame:
Changed the frame a bit for the front end loader:
Tacked the cab on:
Started rebuilding the front part:
Finished:
Then i cut off everything that i`m going to rebuild:
Steinbruchsoldat
New member
Ok guys, need some help with the winch:
I`ll be getting a hydro motor, that will be used as a direct drive on the drum. This gives me about 4000lbs pulling force at 50 yd/min. Drum will be 2 3/8" diameter. Do you think that .158 wall is strong enought? Also, how much winch line should i use? I`m thinking about 55yd dynema. Anyone knows how wide the drum needs to be to accomodate that?
I`ll be getting a hydro motor, that will be used as a direct drive on the drum. This gives me about 4000lbs pulling force at 50 yd/min. Drum will be 2 3/8" diameter. Do you think that .158 wall is strong enought? Also, how much winch line should i use? I`m thinking about 55yd dynema. Anyone knows how wide the drum needs to be to accomodate that?
Steinbruchsoldat
New member
Well, i can't see any problems?
Nobody got an idea for the winch?
Nobody got an idea for the winch?
Steinbruchsoldat
New member
Got the seat today:
Looks like the perfect spot for it:
But then the serpentine belt blew up again on that pos audi, need to fix that:
Looks like the perfect spot for it:
But then the serpentine belt blew up again on that pos audi, need to fix that:
Steinbruchsoldat
New member
Didn`t get much done lately, my grandmother passed away a couple days ago. But i could get a few minutes for the shop. What i did? Of course, i cut off another part of the cab:
Didn`t like it, so i cut off more:
Then i finally started putting on new stuff :
Didn`t like it, so i cut off more:
Then i finally started putting on new stuff :
Stein, I'm very impressed with your building of this unit. I either can't see it or have completely missed it. On your articulation steering, I see where you have left and right movement, but I don't see up and down?
The Haglunds are built on the same type design, and they have both up and down and left and right and they still break that assembly which is an expensive repair, and even more so out in the sticks where it needs to be towed back in most cases. My driving has always been straight track rigs, and they will beat to you a pulp if you go fast down a trail (more than about 10mph). IF your design has no up and down movement between the two halves, are you worried about the stress? If you have already designed that feature, I'm sorry I missed it.
The Haglunds are built on the same type design, and they have both up and down and left and right and they still break that assembly which is an expensive repair, and even more so out in the sticks where it needs to be towed back in most cases. My driving has always been straight track rigs, and they will beat to you a pulp if you go fast down a trail (more than about 10mph). IF your design has no up and down movement between the two halves, are you worried about the stress? If you have already designed that feature, I'm sorry I missed it.
Steinbruchsoldat
New member
Thanks undy. Yes, he passed away about 7 weeks ago. Now, i don`t have grandparents any more.
At least it looks like my thumb is recovering pretty well, so there`s at least one good thing right now...
There`s no up and down movement in the joint. A Hägglund may look the same, but it`s a whole different concept. The Hägglunds have no artiulation between the track assemblies and the cars. The track assemblies on my design can move 90° relative to the cars. This is what will take care of the up and down movement.
Also, i got about 300lbs of steel in the joint, it should be strong enough for everything i can even throw at it. At least i hope so...
Started by cutting more stuff off the cab today:
This will be the new door opening:
Then i started building the rear of the cab:
Also got a new vice today:
Steinbruchsoldat
New member
Made the seat mount first today:
And finished the rear part of the cab:
Also bough myself a plasma cutter. Not the best but better than nothing...
And finished the rear part of the cab:
Also bough myself a plasma cutter. Not the best but better than nothing...
Steinbruchsoldat
New member
This is the winch i`ll get to use as a core:
This is the hydraulic drive i`m going to use:
"Just" need to look how the winch is geared and how i can mate them together.
Started cutting some steel today:
Then i started mocking up the front hydraulics:
Cleaned the ram up a bit:
And put it on:
Looks like this will be fun until i get it how i want it.
This is the hydraulic drive i`m going to use:
"Just" need to look how the winch is geared and how i can mate them together.
Started cutting some steel today:
Then i started mocking up the front hydraulics:
Cleaned the ram up a bit:
And put it on:
Looks like this will be fun until i get it how i want it.
Steinbruchsoldat
New member
Had to use steel instead of wood for mock up:
Then i remembered i have some hydraulic rod ends laying around that i could use:
Few hours later i got it where it`s supposed to be. All the way down:
All the way up:
Did the math. Looks like i need a valve to get the pressure down:
Then i started with the ram mount:
The saw also finished cutting today:
Then i remembered i have some hydraulic rod ends laying around that i could use:
Few hours later i got it where it`s supposed to be. All the way down:
All the way up:
Did the math. Looks like i need a valve to get the pressure down:
Then i started with the ram mount:
The saw also finished cutting today:
Steinbruchsoldat
New member
Finished the front hydraulics mount today:
Then i started machining this piece of steel:
Then i started machining this piece of steel: