Whether you call hem Pie Cuts, Lobster Back, Lobster Cuts, or anything in between, you REALLY need to know how to cut them, measure them, calculate them, and more! In this highly anticipated episode, Justin the Fabricator shows you step by step how to actually make the Pie & Lobster Cuts.
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Thank you for the vids. I made a complete exhaust from turbo to tail entirely from pie cuts. Your vids gave me loads of info. Thanx again.
The first welding project I ever did was actually a 3" stainless catback with pie cuts by hand. All I had was a cut off disc on an angle grinder and some flaps for clean up. It was a full exhaust with 7 bends, it took well over a week to finish @.@ great learning experience though!
I've been welding 17 years strong but seriously dude your channel is the bomb
I don't care how long you've been welding, this cat has something for everyone to learn. I watch it for both refreshing and learning. I've been TiG'n for 10+years and I love this channel too. Keep it up Justin!
I gotta say you have great videos and very informative. I'm an industrial welder and wanna branch out on my own. Its extremely difficult and expensive lol as I'm sure you know, but between you and Jodi I'm plugged with tons of info that gets me moving and allows me to do things with confidence. I've got skills but lack versatile knowledge that's where you come in. It's big help thank you
A much simpler method of making reference lines at the center of any diameter tube, exactly 180° apart: Clamp your pipe to a flat surface. Place a square on the flat surface. Bump the other leg of the square against the tube. Drag the square sideways against the tube. Repeat on the other side. A square will always touch a tube tangentially, no matter the tube diameter. Zero math, zero measuring. Just make little marks at each end and connect the dots with a sharpie if a scratched line bothers you.
Requires use layup die for this for the best results. And a proper machinists square; not a ruler with a right angle.
@@bigiron4018 Really? Try it with a bevel gauge set at about 80° instead of a “ ruler with a right angle”. Identical result.. exactly 180° apart because that’s how tangents work.
the ruler will often rock because its warped, giving an inaccurate measurement
best pie cut series on youtube. very informational.
I rushed the editing on this to post on time and completely forgot to master the audio. I will be remastering and reloading this video shortly. Thank you for your patience and feedback. I swear this episode is cursed haha.
Don't sweat it, man! I did not even notice the sound in the video because the content is very high quality! Learned a lot! Thank you very much for taking the time to explain to us noobs:)
seems a spreadsheet could be a big help for knowing cut dimensions?
Only audio "problems" i noticed is that damn cricket on the green screen shots. lol No worries though, nothing can be done about crickets.
Can you make more videos on pie cuts? Just kidding. Awesome job as always.
One of the most used tools in my shop for this type of operation is a small level I attached to a thumb screw clamp... you clamp the tube in the fixture THEN clamp the level bubble to the tube, on "level"... now you can flip the tube 180 degrees accurately and quickly with out having to measure anything... makes cutting the pie slices manageable on a band saw or chop saw...
This was a great video. Thanks for taking the time to share. Keep to up!
10:40 I did it this way my first attempt for these. Its main disadvantage is making sure that the grinder wheel stays plum with the cut. Otherwise it'll have gaps that need welding in when you put the slices together. I ended up getting a harbor freight chop saw, and haven't regretted it since
Nice vid Justin! Very easy to follow and a great reference video for many years to come
Just wanted to say thanks for the awesome videos followed your directions step by step and the pies came out perfect! 👍👍
I learn a lot from your videos. It all makes me a better welder behind the powertig torch.
These videos every time I watch I learn something new! Keep them coming👍🏼👍🏼
Pie's are fantastic. I did my intercoolerpiping whis it. It works super. Its a lot of weldingwork but the risalt is super to see.
What a great video. I really like how you broke up that first part. Super helpful using that seam as centerline, very obvious but I didn't think of that
awesome series thanks for the uploads
I have been trying to figure out how to make a hose reel for a few weeks out of some pipe I have. This video gave me an idea that just might work for it, if it is any good I might even show ya. Thanks for the help and inspiration.
I love how it look afterwards
This is fucking sick. Probably one of the best detailed videos on KZhead
Your video helped me immensely! Thanks alot man 🍻
Fine work. Great tips. Thank you so much.
Thank you. I need that so much
Execellent, this a master video. Thank you so much and please do more videos like this one.
I struggle to figure out how to make the cuts to fit a specific bend. I will try out your ideas and practice with my powertig some more.
that keystone tip, is awesome. thanks.
true art!
Thanks dude!
Great Video Man!
Great Stuff as usual!!!!! keep the metric going for us folks overseas
Great stuff!
Very good explanation
I just made Pie cuts for four hours today and I used a grinder on a Pice of pipe lol the struggle
Thanks!
Good stuff and well done! thanks eh.
Yaass. Thank you!
Love all you work and videos. I know you made a video on how its made.. merge collrctors but any chance you could cover a video on merge collector fab and angles required as thats an art on its own.
You could drill holes into the base of the chop saw and use a piece of angle iron with 2 holes and 2 bolts to make a stop.
great teacher thank you
Going to attempt this next weekend on my first exhaust build on a Toyota hilux and y pipe as well so I get twin exits at rear will also be mig welding with argon mix as I don’t have a tig welder
How did it turn out?
You are awesome thanks for the info
Hell ye! Better late then never. Thank you so much.
hello,nice video,for ITALY salut
Thank You For Sharing Your Experience & Knowledge
Awesome information 👏 👌 👍
Very helpful
please ... with what amperage do you weld the bends and with what rod of addition? Congratulations for the videos I'm learning a lot ... one day I want to take a course with you.
Great! Thanks!
thank you for help, mr. fabricator ....:)
thank you i have looking for a video to explain how to keep the round pipe square to the saw
I came for pie and lobster. Where's my pie and lobster? ;-)
Ok ben racking my brain for months can you tell me what the most affordable tig machine for cold welding there are a bunch of vids on KZhead but they dont explain the difference and what machine is best to use. Thanks ps your vids are awesome keep goind man you got me into it...
cool video man,never done pie cut looks like you can buy them already cut dont know if that is a viable option for a fabricator charging by the hour ?
Grate vid thanks
Eres un máquina brother
very good video greetz from germany
hi just some info you can just calculate the pie cut using radius of the bend x 1/2 the tangent angle x2= the cord length of the pie cut. ie 3" radius 3" pipe so the od radius 4 1/2"x1/2 tangent angle x2 = the length of pie cord length
So when you were making that o2 housing, how did you figure out what angles to go with since it has more than one bend?
so cool , lern much from you
Hey man, whats a good TIG welder for a noob to try his hand at? There are so many models with different options and I'm not sure which to pick. I'd use it primarily for welding automotive exhaust tubing. No super thick metals or anything like that.
Can you just cut a load of pie cuts in mild steel and use magnets to hold them together for mockup?
Great....!!! Gracias...!!! Thanks...!!!
Justin, I see you stacked all of those pie slices to make that curve, then back purged and began welding. Instead of back purging, can I solar flux that many slices at once or no?
What audionautix music was playing during the last few minutes of the video?
im gonna watch this again later but holy crap after barely paying attention i soaked up so much info.
I found a tool that help with making pie cuts easy vpg exhaust system pie cut template . Bought one and it’s making my side jobs a lot easier. No measuring.
In millimeters I did 8 degree cuts (1mm for the ink line) then cut on the line for the paper wrapped around pipe and when cutting. Got it dead on.
Awesome 👨🏭👍👍😍
you are the best. I like you Vid
Thanks man, I love you. No homo
Made transitions for lots of large and some odd ball diameters small pipe. I am not saying you oversimplified,because it seemed work quite well. Then again there is more accurate methods. When i make a transition for tube it's normally made from flat metal then rolled or bent. Making the transition patterns is a dieing art . Just go your computerized plasma, laser, or waterjet throw in data and wala. Glad i learned the old fashioned way. So many things today diminishing thought process.
When making your cut, do you just add up the angle? For example, 30 degrees plus 30 degrees plus 30 degrees equals 90 degrees?
Piecut pipes are very visually apealing. If you dont have access to tig or mig welding, can they be just completed just as good with a stick welder?
Praise the lord!!! It’s finally here!! 👍🏼👍🏼👍🏼
What was the name of the website that you we can get the sample kit
I'm using a 5inch tube what is thr tightest center line radius I can go with?
How exactly do you get the top length of the pie cut or the longest part? Mabey I missed it but I’m unsure
Rutger Fluck Measure it after you draw it out.
Justin, what kind of band saw blade are you using for stainess steel tubing? I only got 1 cut out of a brand new blade cutting a 3" SS tube.
jwright650 I'm not sure what type of blade it is. It's the blade made by the manufacturer of my saw (saw is a Kama EV996). The biggest killer of a blade is speed. If your saw can't go slow enough, you'll toast every blade you can throw at it in seconds.
Thanks, I use floods of coolant but that didn't help, so next time I'll try slowing the saw down even more. I think I have one more pulley that will slow it down more.
Great video - been waiting for this for ages. Would prefer no music or lower volume music - no criticism just suggestion. Fabrication table looks good I`m hoping to start mine soon. Massive thanks
+Paul Morrey Ill be honest... i rushed editing to get it done on time and totally forgot to master it. Normally i wouldnt have it play that loud. Ill pro ably go back and remaster it.
No probs as I said just my preference, Love your videos and thanks so much for sharing. All the best
Wish I could show you the work I have done after watching your videos
What saw brand and model is that please? Cant find one with that type vise, looks really handy.
dag36523 Which piece/tool are you asking about?
The Band saw in Pie cuts Part Two. Thanks!
i just use a mitre saw with a stainless steel cutting blade just change the angle both sides so dont need to flip it just have to move down each cut for the radius
Is it faster than using a chop saw?
GOOD VIDEO. but the music overlapped when you were explaining at around 10:51
i would lime work in this field..is there any opportunity?
Could this be done and sold on say ebay to be a side hustle?
Hey what size filler rod did you use to Tig weld the 3" pie cuts? (The one around 8:00)
1/16"
MisterNBG cool
On the pipe that what was shown being welded are the welds full penetration?
Lake School Restoration Channel I'm sure they were to some degree.
The Fabrication Series Thanks for the reply. I have done a lot of tig welding on thicker material, nothing that thin. On thicker material I have to weld with a gap inorder to get internal fusion. Seems that might be thin enough to get penetration with no gap. Time for me to practice :)
What is the air hose for?
What software are you using?
My mom used to put my hair like that when I was about two months old
Me too!
The crickets in Vegas are almost as bad as the pigeons.
👍
Does anyone have subtitles for this. I can’t hear or understand what he is saying over the music
SO, this is a great approximation, but mathematically when you cut a cylinder at an angle, the projection of the line wrapped around the cylinder is actually a sine/cosine curve. Yes I'm a Nerd
Nice good joob
What is the length of top and bottom for a 4.5 degree cut angles?
Depends on the CLR of the pie cut
@@TheFabricatorSeries what is the formula of getting the clr? Thanks sir
9:24
Distant-male-monach finally!
How do you know if your getting the penetration when you are welding?
Look at the inside
@@TheFabricatorSeries is there a way to know whilst your welding so you don't have to repurge everything ? Is there a suttle sign to look for ?
@@MrBurningrubber Not really unless you put a wireless camera in the tube or something. Once you do a few and they pass then it's just repeating it. You just have to know it.
@@TheFabricatorSeries I'm only asking because I'm used to welding big thick heavy wall pipe and could have a fair gap. But recently just changed jobs and now I'm welding slot thinner gauge milk pipe and has to be butted together, and have had a few problems getting the penetration.
@@TheFabricatorSeries thanks for the advice I shall be doing a few more tomorrow so I'll have a practice run first
The squeaky wheel gets the grease
BEER ON TAP those crickets need some grease
Ooooooooooh 😍