Thank you!

Thanks for watching! Good luck on the build!

Thanks for watching!

Thanks for watching!

I'll have it up as soon as possible. Thanks for watching!

Should be up soon.

I'll have it up soon. Thanks for watching!

Thanks for watching!

You're welcome. Thanks for watching!

I'll have it up as soon as possible. Thanks for watching!

I'll have it as soon as possible.

You're welcome. Thanks for watching!

Thank you!

Awesome. More coming soon!

Haven't had enough by now? haha. Thanks for watching!

Excellent! Thanks for watching!

Excellent explanation.

what it's the best way to cut the pay cuts if I want to try to make something with pay cuts but I don't have bench saw ore disk saw for metal to cut it? please pm

Mindaugas Berteska There really isn't an easy way to do it without something that cuts straight. If the cuts aren't straight, you end up with mis-matched angles and gaps.

that's suck's because I have 3 ore 4 meters 304 SS and planing to make induction tubing, and I want to try for my self

Mindaugas Berteska You could always have a go at it. It's just difficult to get the pies to line up if the cut angle isn't perfectly straight.

Thanks, Tom! The audio crackle and sync issue is a KZfaq thing. It is messed up on some of my devises, but fine on others. It's really a hit or miss. Thanks for watching!

Thanks!

Small suggestion: Put a whiteboard on the desk to kick some light on your face at the computer. Great content. Great lesson. Thanks.

Thanks for watching!

Thanks for watching!

Thank you!

This entire comment has so much misinformation in it I don't even know where to start 🤣

If I can answer some questions to make it feel less like witchcraft, let me know. That's what I'm here for. Thanks for watching!

tyler krenik clr is the one thing I'm still trying to grasp/how to figure out on an actual job correctly. Don't know how to come up with it measuring a job from scratch.

You can use a wrap around, or make a single mark on the same place on each piece to note where your zero degree reference is compared to the other. Try a few methods and see which one works best for you.

Haha... makes sense!

There is almost always a measurable change. It's just a matter if it makes a negligible difference. The data I have viewed over the years suggests that pie cutting has no major adverse affect on flow at either 4.5 or 9 degrees.

Thank you!

Thank you!

Jersdunz That's actually a KZfaq processing byproduct. It's total hit or miss whether it does it or not, and I really wish I could do something about it.

I'll have the layout techniques in the next pie cut episode. It's really pretty simple.

Earl Cousins Its in the "Tools and Gear We Recommend" link found on every video description.

CanadaBud23 Buying mandrel bends is ideal in cost cutting, but they don't always fit in the same spaces where pie/lobster cuts can.

Most of the time they never fit quite right. So I end up pie cutting those up to fine tune the directions of them. I mixed it up a bit, the collectors required sections that were very small. I'd say roughly 2 degrees because of the space between the block, pan and driveshaft and angling because of the vband clamps. It was a nightmare but I got 2 3" pipes through there :D Learning pie cuts saved my exhaust idea so I'm glad to have learned them when I did. This vid is good solid information.

Awesome!

I'll show it in an upcoming episode.

Yes, about mid way through the audio processing issue so it's off a bit. Something I can't control since youtube is what processed it.

I know it's been forever, but I'm working on it. Just have to find the right time to get it uploaded.

Okey! Love youre videos buy the way very Good information att good teatching Love IT !!! Keep the Good work up!

It can but there will be a lot of cleanup work involved.

Half the diameter is the measurement.

Just let the saw do the work. let it cut on its own and don't force it. It should cut just fine.

Thanks for watching!

Yup can't wait for the next part

The width of the top and bottom is based on the Center Line Radius (CLR). The angle of the cut and diameter of the tube will not change the CLR. the CLR is only changed by the length (or width of top and bottom as shown in the video) of the pie cut itself. That length is based on whatever CLR you calculate.

We use it all the time in the auto industry

Haha, Yeah, sorry about that. The downside of not turning my notifications off before shooting an episode.

The Fabrication Series actually this is my only problem with your videos, and it's not the notifications. it's the huge differences in audio volume throughout. please even things out so we don't have to turn up the volume to hear you and then get blasted by power tools etc.

fuck that ! that is for pussies

Hahahahaahhahaahhahahahahhaahhhahhaa.. Know how that feels

Unfortunately a COMMON problem for a lot of you tube efforts...

If you are transitioning you will usually create a transition piece which will have the angles clocked to the bend direction on each end. If that doesn't make sense, I'll try to better explain.

The Fabrication Series makes sense thanks for explaining

You're the first person to ask. I suppose I could make it happen if the job comes up. If not, I can likely put something together.

I will soon. You can head to the Facebook page and check out the most recent live stream which I gave a quick shop tour at the end.

Ok sweet. I will check that out. Do you use Mastercam for any cnc work or just drawing things up before welding? You seemed very comfortable with the software.

+draperb1 Mastercam is for all of my CNC work primarily. I also use it for drafting parts and checking dimensions on some things, but mostly used for tool pathing parts for the CNC.

Exhaust wall thickness depends on the metal. I usually use 16ga for steel and stainless. Aluminum exhaust jumps up to 14ga, and titanium drops down to 18ga. Building the other exhaust style you mentioned has been requested, but I have to have a vehicle or project here to do it. I'm always on the lookout.

okay mate thanks a lot for your reply!!! really appreciate it ! cant wait for the video to come up at some point ! best educational channel on youtube by far !! peace !

Thanks, Adam. I will have info on merge collectors in upcoming episodes.

I typically use the band saw for pie cutting. You can use a chop saw as long as you take your time and let the blade do the work - not your muscles.

+The Fabrication Series maybe I need to invest in some better blades then the cut off wheel type (waffle discs) any recommendations

The audio does have a crackle. Some vids process just fine while others do not. It's a KZfaq editor problem.

Daniel Swift Watch the new ones. This was 2 seasons ago.

Haha

Actually it’s a Torus.

As soon as I can get it made. I'm pretty backed up at the shop right now.

Thank you!

Im not sure I understand your question about the shape. Could you elaborate?

The Fabrication Series I'm talking about the complete shape of the piping, after tacking the pie cuts and straight pieces together, how could you figure out the shape of that so you can fit it in the engine bay? Do you have any easy mockup methods for this like cardboard or something else?

Raio Lively Cardboard is common if you want to figure out what CLR you are after and how many cuts of an angle you are looking to do. most of the time you can simply look or measure the angle and the space you have to work in and calculate the pie cut angles by dividing the transition angle by hoe many pie cuts you want to weld, or divide by the angle of the pie cut. I'll get further into this in a future episode.

If it works - use it

Look up VPG exhaust systems. They have what you're trying to do

@@blue32nu engineering to not pay someone and already made them, (year ago)

Papa Wheelie It was free. I trained in a program called Workshop for Warriors.

Soon.

so this never happens?

+Shinji “MrHirako” Hirako We're shooting the episode now, but no release date yet. It takes weeks to schedule and create an episode. Rest assured it's getting done because it's the #1 requested episode right now.

As soon as I can get it made. I'm pretty backed up at the shop right now.

+The Fabrication Series --awesome mate. Really looking forward to it.. (Would love to come out to America and weld!!)

I was retired when I started this series in my garage. It was mostly to keep myself busy since I really can't stop working. 3 years of doing little to nothing was kinda boring. This series, my boredom, and many of my clients decided that retirement was not the way to go, so I opened up shop again.

9 degree cuts are common (even mentioned in this video). Anything over that creates too sharp of a transition which results in unwanted turbulence and it really doesn't look right (in my opinion)

Yes. I've been building custom cars, parts, furniture, and just about everything else for over 15 years professionally. I did retire once which is when I started this series in my garage to keep myself busy. Then I decided to get back into the shop since a lot of people seemed to really want more fab work and instruction (both clients and viewers). I have a shop again now in Vegas which is open to the public.

+The Fabrication Series I wish you the best of luck for your future! You have inspired me to try a lot of new fabrication techniques!

+The Fabrication Series I'm interested in entering welding or fabrication as a career. I know fab will be a hobby regardless, as I enjoy welding in my truck. how does this career treat you financially?

Financial success in this industry is largely based on you and your abilities. While I do earn a living by building very high end vehicles among other things, I'm not a millionaire. My early years were extremely difficult financially since my skills were limited. I still had to work a full time job while running my first shop. Your investment in tools and time to reach the point of financial stability in the industry is by far your greatest hurdle. You must continuously dedicate your time to achieve your success. The other part of this is the people you see around you. There are tons of people that pick up a welder and call themselves Builder/Fabricators/Engineers while very publicly bragging about what they are doing. While there is nothing wrong with taking pride in your work, these people are often seen building for less than a year before they disappear. They essentially get ahead of themselves and their abilities which resulted in their financial and professional failure. This industry takes time and dedication to continually achieve a greater ability. You MUST remember that there is ALWAYS something that you have to learn how to do, and someone ALWAYS knows more than you. You MUST remain dedicated to learning and be honest about your abilities. If you fail to do so, you will not achieve success in any portion of the industry. I hope this information helps you a bit, and I wish you the best of luck!

The Fabrication Series Thanks a lot for the response; no surprise that i continue to gain knowledge from this channel. Keep up the good work!

Welding the pipe like this looks awesome though and they don't have any turbulence issues that you are talking of

I am _very_ sure about what I wrote there, are you?

he will be back once he has looked up turbulence in the dictionary

The biggest reason for doing pie cuts is for creating a CLR that can not be bent, or changing the direction of the bend multiple times in a tight space. Turbulence is actually very low, and anything cut up the same way in a mandrel bend would produce the same issues. The only big killer to flow is too sharp of an angle.

I did not use the correct word - turbulance, it doesn't quite explain the problem, the issue with pie cut tubing is the repeated change in the cross section of the tube where your weld is, the gas flow will repeatedly have to expand/contract to flow through this tube - this is creating back pressure and messes up the flow, as I said earlier and you yourself mentioned - there are times when there is no other cost effective way - usually for large very thin wall tubing (65-80mm range), though this part usually is oversized anyway and the negative effect isn't noticeable this is however important for headers, because you don't want to mess with the pulses before they hit resonator or a turbo, and there is no problem whatsoever to change bend direction - you do a perpendicular cut and rotate the next section as needed - perpendicular cuts in a bend are always round, this is a bad practice though too, it is highly recommended that after each bend there is some amount of straight - it isn't always possible, but good thing to keep in mind while designing the thing

Right on Nick. The content has improved since the early videos. Audio has improved. But lighting could use some work. With a bit of production assistance, this could be the best "how to" on facebook. I hope he takes you up on the offer.

I almost made an investment into some better equipment. The only problem is expensive equipment combined with this environment (the shop) will almost certainly destroy it. If you would like to swing by and offer some input, I'd love to hear it. I am very serious about getting a small camera crew here at some point to help me bang out these vids a lot faster, but I really can't afford to replace damaged equipment continuously. Metal dust destroys microphones, sparks and other dust will fade lenses, and soft boxes are almost always getting knocked over and/or can't get the right lighting in the space I am working in. Again, I'm open to suggestions. You're more than welcome to swing by and check it out.

Joanne Hart i

It's not impossible by any means, but allowing dissimilar angles to mate and weld because they aren't that far off is not a practice I will promote. It's the finer details that make ones work stand out above the rest, and attention to those details is what will make one succeed while others show their lack of detail in their work. Thanks for watching!

i figured it was something like that ;) its always good to instill pride in the fitup to the people learning out there

I'm not sure I follow your formula. It doesn't seem to make sense as written.

The Fabrication Series let me see if I can explain it well enough. CL= center line, you need to know the size of pipe let say 2" and the actual OD of the pipe let's say 2.25" The center line would be determined by the radius of the bend 2"X1=2 for short radius, 2"X1.5=3 for long radius or 2"Xany number just making the radius longer. I use Long Radius the most in my profession. So here is the example for 2" long radius. So CL=3 and half the OD =1.125 CL+ 1/2 OD X1.57 divided #of segments =heel CL- 1/2 OD X1.57 divided by # of segments =throat 3+1.25=4.25(1.57)= 6.47÷4=1.67" heel 6.47÷8=.8" heel etc.. 3-1.25=1.875(1.57)= 2.94÷4=.73" throat 2.94÷8=.36" throat For a 45° or 22.5° bend figure out the 90 formula and use half the segments for a 45 or a quarter of them for a 22.5°. I wish I had the computer program to do this but I had to do it manually for my project. Thanks for the video it helps me see what the numbers represent.

In the works