Mini 4WD Trophy Truck Build - Part 18 

Dude is giving us the absolute best homemade content, its so inspiring to see his creativity

I’m very surprised that you don’t have sponsors. Your projects are unique and amazing to watch!

I gotta say after all these years, your work is amazing dude

Lets give this guy some motivation in the comments other than trying to be the one to call him out for little things, anyone who actually knows anything about fab would look at his angle iron and realize thats for mock up only.

I'm a machinist, not a welder. However I do know the ideal angle for butt welding is 30 degrees on both pieces. Keep up the great work Chris!

The best way to line a sprocket up is to put a chain on them and spin it a few times. It will naturally find a true line

If your shield gas flow is too high, it can cause turbulence, and cause perosity. Sorry Any bad english. I'm form Denmark. Love your video's. You are an amazing builder👍👍

1 of the many things I enjoy about your channel is the music you put with the time-lapse filming. Very calming for me, and an enjoyable way to finish out my weekend.

If you can find a tank off of a broken air compressor you could add an auxiliary surge tank that should make up for the smaller compressor, it'll run a little longer to pressurize but you'll have a larger reserve volume of air to work with, love the project brother, can't wait to see her choochin under her own steam

This is the perfect example of not needing a million bucks to make something happen .This guy blows my mind every video .Keep it up 👍

every video you post i always feel a little smarter. i love seeing other peoples solutions to problems and what they do to fix it.

Should call this rig “Mr T” it has so many chains. 😂. Great work, Chris.

Brother don't worry about people that don't understand the process. Let them watch and learn. Keep it simple and do it how it works for you.

Only kart builder I’ll still watch! Thank you for not becoming a machinist with a proper shop full of machines we’ll never own. Success hasn’t changed you thank you for being real.

Let’s not use drills to do tests like that, it’s a great way to break a wrist…as you almost found out! Remember Chris, some people speak without the benefit of forethought…so pat them on the head and give them a simple explanation and they will be just fine. Great job…glad to see you’re still moving forward on this build Chris, good luck 👍

What kind of engineering degree do you have dude. I’ve been watching you for years and you never cease to amaze me. Simple yet complicated

One advantage to the angle iron is you can easily see the axle turn. Once you have beautiful welds and running within a few thousands you can't tell if it is turning. I wouldn't worry about the axles. Very nice job. Actually the whole thing is looking awesome.

iv said before.its so nice to watch the talent being displayed.fantastic 100% RESPECT.

Man your engineering is at another level, can't be many working at this high level. Well done sir.

Man you are a wizard with when it comes to machining. I love watching the things you do. Great job keep up the great work!!!!!!

You abosultely deserve more views on this platform. Your work is truly inspiring!

This guy is such a genius it actually gets pretty scary 😦

My dude! Your Raid Buggy is soooo badass. ...Aspire to Dakar, with a co-driver! Team RBW 😉 Might have the ONLY fully chain-driven buggy out there!

I can't believe people see the amazing craftsmanship and engineering in this build then think those temporary drive shaft angle irons are the finished product. Like wtaf.😂 Love your work Chris.

Good job don't let someone who don't understand bring you down

For the front sprocket, maybe you can bend a thin walled tube in the same radius as the sprocket and then cut it in half? Then make it bolt on so you can remove it? Like a cover if you know what I mean?

16:09 that disassembly was top notch 😂👌

I can't explain how stoked I am to see this thing hit a trail and some jumps. You gotta send it with this thing.

I’m always ready when you have a new Video ready I still can’t believe how good you are At making your own machining parts and it works great when your done !! You just about got a broken finger or thumb when you was using your Dewalt to run your unit I don’t think if you break anything that would really put you behind I’m glad you quit when you did Thank you for another great video

UHMW is the BEST chain slider material ever made!

This is my favorite RU-vid channel, and has been for years!

Chris buddy little info. Check out the chain to sprocket setup on a mini sprint. They use these plates on either side of the sprocket to keep chain from jumping while racing. They are usually aluminum so wouldn't add much weight to the build.

Love how you have an arch nemesis. Love the work

Awesome! Make sure to pull those boots to make sure the axles are properly greased after putting all that heat in them with the welding. Also looks like you might need more bracing in the door area. With the doors off looks like you only have the one "door" bar and it's brace. Seems like that area could fold.

That air valve on that air over hydraulic jack is killing it's performance, take that thing off, put you a ball valve or some other free flowing valve, we did this conversion for ours in the shop, you can tell it's the same jack! Also heard you say your compressor isn't big enough, if you can find a tank at the scrap yard, like another compressor take, plumb it in between your compressor and hose blocking off all other outlets your not using, gives you more ai volume and that is probably enough to make it easier for your compressor, we have special tank we hook up to shop compressor when we use our 1inch impact for big boy bolts 😂, makes a world of difference 😉

Seems prety much every project, you weld an axle like this at least twice. It might be worth it to build a dedicated mount that turns really slow, keeps it aligned, and don't need to super-heat those rubber covers. I suppose something like that would take a lot of space. These huge projects are pretty impressive, doing in such a small shop. The disassembly was beautiful. ;-) Looking forward to more on this one. Most over the top project yet.

Merakla bu aracın yolda nasıl gideceğini görmek istiyorum. Çok emek ve uğraş var helal olsun. Bravo sana.

I've never been so inpatient for a video to drop.

I thought your use of the angle-iron as a mockup/welding-centerer-thiny was rather obvious in its purpose as a mockup/welding-clamping-tool, but I guess not everyone in the comments are on the same wavelength or quite grok the need to keep things aligned. I'm really looking forward to this monster when its finished, its gonna be very cool :)

Love watching this dude when I'm stoned

This thing is gonna rip with that Hyabusa engine on, can't wait to see it on the trails!

Great job with getting the lower A-arms built accurate enough that they can swap from one side to the other so easily!

the key ways being shaved down and held on by the bearings is a really great idea, solid work

I like the idea for the front differential, but I'm curious to see how it will steer being locked.

Little bit by little bit she's coming together. Love this buggy. Great job

Love your work brother. Always love Sundays when another vid comes out. And there was nothing little about that black snake

This is a really big project. I am still worried about the chain stuff, but I just like watching you build stuff.

man you are insane i dont know how you come up with all this idea but dame you are a god to me keep up the crazy builds love your video man

You usually get porosity when the gas doesn't shield properly. Maby try turning the gas up slightly and see if it helps. The metal looked very clean to me so other than lack of gas would be my guess. Also try relocating the ground, sometimes that helps. Love the videos man.

Nice Job on the CVs bro! I think I would sleeve them because I tend to overbuild things but I'm sure those CVs and shafts are made for twice the vehicle weight and horsepower of this vehicle so they are probably just fine. I'm really loving this Mid-shaft Chain drive design! It's a hell of a concept and you've proven it really works with rear-wheel drive amazingly. Can't wait to see how this works! Hope it's not too loud. Not that I would care too much if I had it in the woods. This one is going to be a beast!

The jackshaft "disassembly" made me laugh. Raining metal! Great show, man. You have come a long way, and your creations are all works of art!

Another choose for the sprockets to be attached to a shaft is called a Taper Looc. It uses a Morris taper to lock the sprocket to a shaft. Won’t fail like a key. 18:21 18:21

you can put pretension all the chains on this project. normally chains need slack because the swingarm pivot and the sprocket are not in the same spot, but they are on your trophy truck. this should help a bit with the chain hitting the frame.

No sleeve welding for axles. Your welding skills are top notch. Great wrk

Take the 2 springs off the bottle jack, you don’t need 4 of them, adding unneeded pressure pulling back on it. See if that helps

Haha! Best end of a video! “Whatever!” Appreciate your work man!👍

Can't wait to see this beast on the trails man, and wish I could buy ur reverse trike

Finally someone that knows how to use an indicator

You should pannel the whole thing with a windshield too and then get the whole thing wraped with a cool design

A quick wipe with some acetone should remove any oil from weld surfaces. I would guess if you lathe the surface rather than grind you'll have much better results - grinding can embed some material in the surface. I think cut off wheels and disc grinders are the worst for this, compared to a stone or sandpaper, but I'm not a pro.

This will be fun as hell to drive and an absolute nightmare to maintain.

You’re crushing it Chris, people are idiots. My son and I look forward to all you videos. Keep up the great work man.

Its about time you built a trophy truck lol. You built many things, but wanted them to do trophy truck stuff and they never did now you got this lol dont chicken foot this one and really open her up and see how the suspension cycles.

17:48 Those blocks would be perfect for tube bending. To keep the tube level for the 2nd or 3rd bend. 18:55 Next time use a square or hex rod & matching hubs. 19:02 Move the springs to each end of the hose. To protect hose from bending too tight.

Perhaps air is getting trapped under the weld (thus causing porosity) due to too narrow a bevel you're welding into. Perhaps a wider bevel would assure you're welding clear to the bottom of the bevel, and therefore not creating any voids of trapped air beneath the weld pool.

I'd have tacked the axles then the took the cv's apart and put it on the lathe between centers and welded it up. I'll be so glad to see it running!

you are a very talented fabricator i have been watching your videos for years and i look forward to every one of them

Great progress. Can not wait till its buttoned up and painted. Going to look great. Maybe aneal and then heat treat axles? Was a pain doing them once would suck to do them 2xs. Plus whatever else might break when they let go. Then sleave them. You are running pretty big tires.

The axles instead of sleeving them you could drill a hole or 2 (not interfering with each other) through the welds and weld pins in it then turn it back down so if in the future you need to replace the rubber covers/dust boots on the drive shafts you can without struggling to get the replacements over the sleeve and then having to make new ones if they get torn up

Thanks for yet another awesome video Chris. 😁👍

I love how you almost broke your wrists with the drill and then proceeded to do it a second time I laughed so hard....

Dude I check every day for new updates on this build

Nice progress Chris! I can't imagine the time it took to weld and broach the keyways. 🤯 I only have 1 concern... The front chain tensioner will slide/move when a high torque is applied. The clamping force on the smooth tube won't be enough. You will need some sort of splines or second mounting point to keep the clamps from sliding on the tube. But as always, great content ! Can't wait to hear that 1300cc scream!

You should get some letter punches and during construction add a L and R on the arms and the like

The ending lmfao. Your right, some people just don’t understand.

All bevels for joining metals should be 22.5 degrees on either side

Put in a good harness for every time you let off the gas and its like hitting the front brakes with that giant chain being spun by the front wheels

You need your own machine shop mann!

Take your time with it, we are not rushing....this one is going to be a goody! ❤

Union boilermaker here (a trade that would mutually benefit you and us, we need folks exactly like you), porosity issues , try using a gas lense, or put a Y in your 100% argon hose and purge your weld. You mentioned putting a shallow bevel so you didn't have to weld as much, that makes me think maybe you had to stick your tungsten out too far to get to the center. I'd bet on those issues first. Did you know they now make a clear cup for your TIG torch? They're awesome. Also, Tig is good for the center, maybe first couple passes but that's as far as I'd go, I'd stick weld the rest. It would take me probably ten minutes to make that weld, no offense, I've been doing it forever. I've learned quite a few things from your channel, just thought I'd try and help. Also, idk what state you live in but being a boilermaker is a great career and you are seriously what we look for , you have a good mechanical head on your shoulders!

Looking good Chris the build is really coming along love the engineering and thought you put into your builds love it brother 🥰🥰🥰🥰

This is such a awesome build man can't wait to see what's new every Sunday 👍

00:10 Osha would have a field day with this 🤣🤣🤣🤣🤣

Absolutely awesome content as always Chris

Look into different cups for shield gas . Might help and the shop door for sure ... and always clean it again. LoL

Looks great 👍

I really enjoy your work great job young fella!

Great job Chis!

I agree with Bill, steering is going to be interesting without a front differential, unless you can independently lock each side.

Yeah, you need a pair of angle irons :] who would run just 1?

Very impressive👍 the long center chain is a little bit scary 😂

Use a couple drills for the motor. Attach with angle iron.

hahaha !! Ouch !! ( does it again) OUCH !! Just a guess, but I'm gonna assume when you were a kid you stuck your hand in the fireplace...twice. 🤣 Kidding, of course. This truck is gonna be the best build yet.

Those broaches are seeing a lifetimes worth or work in a day.

When welding the axels like that, you can leave fractures in the center. That caused me to break a few axels. I set mine up in the lathe to weld them.

You are the best of the best an have proof the rest of the world you dont need a big shop to do what you do!!!

Bonnie 2.0 8s so fast also. Lisa Musi is doing awesome.

Chris, please add some extra strengthening around the tab your steering rod is attached to at the knuckle! This thing looks sweet man!

This thing is gonna be crazy, you really got skills man, been following you for a long time and the talent is on point in fabricating, just keep the vids coming and can’t wait to see this thing in some action!!

If you let the material cool down a little between passes it's good. But don't weld at cold thick stuff cause that will draw to much heat from the weld and might cause it to harden and get brittle, CrMo definitely requires pre-heat because of that. And to much heat will only induce grain growth in the HAZ and also make it brittle like when you do wide weaves, so several narrower string passes are better. Each pass will also anneal the previous weld so avoid weaving even though it's tempting and looks nice. At my IWS course we did a comparison with MMA(stick), one piece as cold as possible and several strings, and the other hot and weaving. Even though we had slag inclusions in the cold weld as the stick went out and got stuck several times as we had such low amperage it had higher tensile strength with an inclusion than the hot weld. So if you want strength then preheat a little if it's thick stuff, keep the amperage low and no weaving and let the temp get back down between the passes. And make smooth transitions, a sharp angle on a very bulgy weld could become a stress riser and induce a crack so avoid that, grind down the weld if necessary.