7m / 23ft Truss Beam Fabrication - Swingblade SAWMILL Build Ep.10
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- Опубликовано: 10 ноя 2023
- I'm building a circular sawmill from scratch. The function of the mill is in its name "Swingblade" - the blade swings 90 degrees making it possible to cut both ways while moving the carriage up and down the log resulting in dimensional lumber in one pass. I built a chainsaw mill ten years ago and milled lumber that I used for my cabin / sauna house project. Then I built a bandsaw mill five years ago and used the cut lumber to build a partition in my barn I currently call my workshop. Both of them worked great, bandsaw mill was faster than chainsaw mill for sure. But I think I can make an even faster mill and swingblade sawmill in my opinion is just what I'm looking for. There are different types of swingblade sawmills, one type utilizes a railway system where the saw carriage rides on rails so both rails are in the way when loading the logs. I want to build a beam-type mill where the saw carriage is suspended on a beam over the log that sits on a couple of wedges so it doesn't roll off while cutting. There will be no need to clamp the log down. Cut depth and width adjustments are all going to be made on the sawmill beam end frames. And to top it off - it will basically be a portable sawmill due to its build properties but I think it's only going to sit in my yard regardless of the portability.
In this video I'm fabricating a 7 m / 23 ft long truss beam from scratch. I'm using 20x20mm rectangular tube as rails and 8mm rebar as crossbars and diagonals. I start by setting up a 160 mm / 6.29" round tube as a something to tension the 20x20 tubes against for welding, sort of a backbone of the whole project. Otherwise the rails will end up wavy and the sawmill will cut inaccurately. Then the rectangular tubes are tightened and rebar cut to needed lengths. I then tack weld on the cross members both on horizontal and vertical surfaces. And as a last operation I add diagonals. Everything is tacked together. Now I only need to heat up the weld areas before welding to avoid deformation caused by heat shrinkage. Preheating should lessen the effects of that. But we'll see. The overall weight of the beam should be around 38 kg-s according to the calculations. Once the beam is all welded it'll be a whole different story taking it apart - meaning: getting the 160mm tube out of the beam. It'll get tight, no doubt. But we'll manage! Wish me luck! And enjoy the video of course! Cheers!
This sawmill build is based on www.turbosawmill.com "Manual Mill" design and it is patent pending.
Swingblade sawmill build series: • Swingblade Sawmill Build
My other videos: ruclips.net/user/DonnDIYvideos
Support me on: / donndiy Follow me on: / donndiy
Welding equipment borrowed from Spetselektroodi AS, Estonia:
Fronius TransSteel 2700 welder
Optrel Crystal 2.0 Welding Helmet
Hypertherm Powermax 45 XP plasma cutter 
Авто/Мото
The rest of this swingblade sawmill build series: ruclips.net/p/PLkmF7FAZBzkWuunWOOh0zSzB1LllQdUKr
My other videos: www.youtube.com/@DonnDIY/videos
Step one in becoming a great DIY'er, collect every piece of scrap material you ever set eyes on from the day you are born !!!
That is absolutely right. Goes against my otherwise minimalist persona though.😬😛😄
I love the use of the Skateboard!!!
MM77 Approved 👍🏼👍🏼…………………………………………………………………..This sawmill is going to be awesome. I didn’t realize how much engineering was required!
Me neither. It looked like a super simple sawmill - few tubes here and there. And then I started fabricating it back in January this year and still going.🤣
Happy to see you using your skateboard again.
😀🙏
Yes. Truss me that it’s a great video. 😉
Aren’t you glad I didn’t say you’ll be beaming with pride? 🤦♂️
Badum Tiss.
🤣
You should be pun-ished for that.
Вот она где, наша труба.!))
Nice work and, I love the way you work! Clean, organized, thoughtful...
Sweet!
Not too clean but as clean as I'm able to keep it. It's really hard to keep clean and organized in a small room like this (35 m2 / 376 sq ft). Or is it just me...
Kudos man! you enlightened me what seems difficult I think I can start building my own in a jiffy ❤
Super interesting build so far but I am having a hard time still seeing how this works when it's all together. I know it's unintentional but you are totally building the tension for when we can see it all together!
Sorry, it is unintentional. I've explained how this sawmill works to best of my abilities in previous videos, there was even a skettch at some point, but I haven't done it in every video just to clarify it to new viewer and I should probably do it. But you'll definitely get an "A-haaa! That's how it works!" moment once the mill is finished then.👍Stay tuned!🙏
Big build, Can't wait until it's all together...
Me neither!
I love the way you make complicated things look easy, I am sure that it is a combination of a great deal of forethought particularly around the tools that you have, the space and material. All in a barn on a farm, so many other great inventions have come from similar origins, you are walking with giants of engineering.
Cheers!🙏 It's just "Do what you can with what you have where you are" situation. Things have to get done one way or another. Being on a farm is a great place to start - less distractions than in a city somewhere. And lack of materials contributes to creativity as well.
Watching this build/design come together has been great-much like the 4x4 timber trailer. 👍
Fact is they're all great-just seems some of the projects stand out. Looking forward to p11. God bless.
Thanks. I enjoy getting these projects finally together and done more than anybody else I guess. But I love that it brings enjoyment also to others.👍
Will be watching for more to come. Thanks for sharing with us Donn. Very Interesting !! Fred.
Thanks for watching.🙏👍
Love your videos and i was waiting anxiously for this video and others to follow
Cheers! It gets more interesting when the sawmill assembly starts. And then the first test as well.🙏👍🤞😛
I like the steel toed work tennies! LOL
💪💪💪Only the best!🤣🤣🤣 I'm open for proper steel-toe work boot sponsorship if anybody knows anyone in a company that sells personal safety equipment. Otherwise skate shoes it is.🤙
Another great video, its time to extend the shop :-)
Thank you. You're right, it is time to extend the shop. 👍😄
Cant wait to see how you get that out of your shop 🤣another great video Donn, always love watching and always admire your work
I have been thinking about it quite alot. I hope my plan is correct and it can actually be moved out.🤞😀
@@DonnDIY 🤞
SV Seeker FTW
Also really happy you went with a longer beam. I hope it pays off for you in the end.
Yup, I hope I didn't bite off more than I could chew with the beam length. But we'll see.😄👍
Thank you very much for sharing your excellent work!
Thank you very much for watching!👍💪
wow amazing
I watched the first 4 videos months ago, and when the amphibious craft videos started popping up, I assumed you had abandoned this project. I was pleasantly surprised to have rediscovered the channel this morning and see several more videos on the sawmill! Nice work!
I always write in the description of videos or in the community tab about ongoing and paused projects. I had to pause the swingblade for awhile. But hopefully we get it finished soon enough.👍
Awesome it’s looking good😮
Thank you!
Your welcome 😀
When I get rich and make a lot of money like you I’m going to buy a Fronius welder like yours! 😉
It's cool that you think I'm rich and that the Fronius welder is mine. Unfortunately neither is true.🤣 I borrowed the welder from Spetselektroodi AS. At some point I have to give it back.🥲 And money-wise you can help me out at patreon.com/DonnDIY 🙏🙏🙏🤣
This a nice series. I eagerly await the next video because I’ve done a lot welding with those square tubes and I can’t wait to see how you’re going to mitigate heat warping. Learning something new always interests me. ❤
Another very good video, fun to watch.
A tip: if you had rotated the truss by 90 degrees at minute: 18:10 in the video and then welded the struts from above, the truss would have become even more graded because then gravity would not have pulled the part down.. .😉
But a very good idea with the thick pipe in the middle and the tensioning of the four-mant pipes👍
Greetings from Germany
Thank you!🙏
@Donn, incredible. You are truly an Engineering Hero 🤩🏅🥇🏆🥇🏅🤩
Well thank you very much!🙏😄🙏
Very nice work !! Cant wait to see whats next !!
I will finish welding and painting this beam and then assemble the mill outside for testing.👍
Very creative way to make a jig for the truss. Look forward to your next video. 👍
Thank you!🙏
DAMN Donn thats a lot of work, great job
It was.😀
Nice layout and design.
20:15 should use tensioning cables regardless. Here's why. Metal stretches over time, that truss is going to be subjected continuously to stresses, so that's gonna be working against you constantly. With cables, regardless of the stretch you can always either adjust them or replace them once they've reached max stretch (as they do in bridges once every few years). One other piece of advice, make the carriage such that when you're not using, it has legs to support its own weight off the ground. Even if you place it at one end of the truss when at rest (which you should) it would still put unwanted tension on the truss when you're not using it.
Last piece of advice, if you're not using it for a long time (let's say half a year) then de-stretch the cables, if you choose to use them. Keeping the truss under stress is not gonna help you, itself it should be supported with some pieces of wood during that time.
Jm2c as usual.
Jamble aside, impressive build of a truss from common materials and straight too. Good idea to use the caliper, most people mark them down or put markings on a table and call it "good enough" and by the time they're done... it's more twisted than a twister. :)) Good work!
Yup, I thought the same thing about the cables. Good advice!👍
@@DonnDIY It's for rough cut lumber. It WILL be fine.
The cross bracing will stiffen. We will just have to wait and see since recording and editing videos is so time consuming .
Many bridges are constructed without cables. So clearly cables aren't a requirement. And I think you're overstating how frequently cables in bridges are adjusted and/or replaced. While it does happen, the main cables on my local suspension bridge are 66 years old and still going strong.
@@bradley3549 // I agree-I'd lay out indicator marks/measurements in locations that can be regularly checked to dictate if/when cables are necessary.
Its going to be a thing of beauty Donn ! = ) Pre-tension is going to help a bunch, we will see if the guestimate was close or not ; )
Cheers man! Let's hope the ball park is more or less right.🤞
interesante seguiremos viendo
🙏👍
Hi Donn good job well done
Thank you!
Love Your Work, Donn!! ❤
Cheers!🙏
It's coming together Nicely!
Cheers!
Great work 👍
Thank you!
Nice job you do great work Donn
thanks for the detailed video on building the beam , have plans to build a similar mill in the near future, just cant decide wether to use a single swinging blade or two blades set at 90 degrees, either way one pass nets a finished board .... keep the videos coming !
I wanted to keep this mill more simple and light weight. Thus one blade and manual options. Two blades definitely have their advantages.👍
Awesome , always a pleasure watch your project 👍👍👍👍
Thank you!
Hello from the Netherlands.
thanks for the video Donn.
Kind regards, Hollandduck
Thanks for watching!
Man that’s turning out really nice 👍 good Work Donn! Thanks for sharing.
Thanks, Mike!🙏
Once again, amazing build. For what, I don't know yet. But it looks like you are seriously building a huge beast! lol
It's the main beam for my swingblade sawmill. The sawmill will cut bark beetle spruce, windfall and green logs to lumber so I can build several needed structures here at the homestead.👍 Gonna start assembling the sawmill upcoming week. Let there be rain-free days.🙏😀
Love it so much keep it up as always 💘
Cheers!
Un trabajo enrome y bestial , felicitaciones . 💪💪💪👍👍👍
🙏🙏💪👍
Impressive, most impressive young master.
Cheers!
"Honey? What are these square tubing pieces in our yard?" "Those are Donn's, dear, He is extending them for a project he is working on"
"OK... But Donn lives two doors down...." 🤔🏘🏠🏠🤣😂 🤪❤
That's why living in the countryside is great. Neighbors are far away from your damn business.🤣
Great video
Thank you.💪👍
Awesome build. I like it !! I used commercial bar joists to build a 21'4'' trailer for my Frontier bandsaw. A swingblade is certainly an interesting mill.
Very cool! Yup, the first time I saw a swingblade I swore I'd build one for sure. Here I am and soon I can compare it to the chainsaw mill and bandsaw mill I built back in the day.
Thanks For all those videos!
Mainly because of you, my DIY projects are going better and I'm able to use what I have on hand to create stuff and work alone!
I just love your videos, I would pay to have a One on One session with you to help me on a project I have in mind but can't figure out where to start!
Very cool, cheers! Start anywhere you can, when the project is overwhelming then start with the small stuff and build up confidence from there.👍
Hi Don, 5m of that pipe is just heavy, but if you cut the edges outside it would be easier to carry to the workshop :D of course just kidding, you are doing a great job thanks for the content
😛
I have been watching Don since his very early videos
On every one you have a good idea wtf is going on ( aside from when he built the sideways engined little truck. )
This whole video its wtf is that
Wtf is it going to be…. How the hell will that work
Wait that cant work
Just gotta keep watching to see how the hell this is supposed to deal with dead tree carcasses
Hope don finishes this cause i want to see how it works!
Keep it up
This is a sawmill truss beam as the title states. I will hopefully get most of it assembled in the upcoming week so it'll make more sense.👍Stay tuned!
Tight.
16:42 My dogs looked at me like What the Hell ?
Pretty good!🤣
See the tiny mouse escape instant death by the angle grinder.
I rewatched that part and I think it was a leaf instead of a mouse.🤷♂️😀
Donn, it looks like your ambitions and ability are about to need a workshop expansion! I assure you , it seems to be a world wide phenomenon; however big you build your shop, there will come a moment when it is too small!. As a suggestion, just clear the entry way and do enough to create a heated zone at need and still function as the entry way to the larger barn- big doors and such. To your greater and greater successes!
I have a project was stumped on; how to build welded girders or trusses without the enormous table and jigs; you've Donn it! I would add an iron bender and chopper because I have both. but TY,TYVM! for the hint; I'm stealin' that one!
Yup. Did not think that I would build something that big in the future when I built my current workshop. Need a bigger one for sure. No worries, I saw this kind of truss beam build on the Internet also.👍😀 You're welcome!🙏
@@DonnDIY On the fifth day he said, "Let There be Donn". And, "Thank Me It's Friday".
That beam is going to be a beast to move. It will be interesting to see if there is any deflection in middle as the saw carriage moves along it.
The beam should weigh 38 kg-s according to my calculations. Should be okay to move with two persons. Deflection will most certainly occur, the queation is how much deflection.🤔
Very cool. I was wondering how you were going to build the truss. Can't wait to see this thing cut!
I can't wait either!
That irrigation pipe is some good high carbon steel. 👍
This is actually mild steel pipe to my knowledge. It was used as part of heating system in a factory.
@@DonnDIY what I notice from the video was the spark color and how difficult it was to cut; heats up fast and eats abrasive like crackers.
Oh, GROAN....
Good afternoon from America! ☀️. Just a little suggestion, you could use the white pencil from colored 6:10
pencil sets. It shows up on dark colors. 👍❤️📹🤔😃 Even a white crayon.
👍
Don, you should build a steel tumbler to remove rust from metal, so that its easier to weld and paint. You coud make it out of a length of pipe, some casters, and a gear motor. You could line it with rubber from a conveyor belt, as it can get noisy. You coud put crushed stone in it, or punched out metal from an iron worker that punches holes in steel.
That's a great idea! I will look into that.👍 When will I build it - who knows...😄
@@DonnDIY you might want to build a shed around it to make it easier to use it in bad weather, and to minimize noise.
hey Donn, just an idea to align your big tubes (at least in the future), you take another section of tube, and make one cut all along the length, then you put it as a male inside both the tubes you want to join... best way to center part to other, plus it get more strength. Anyway, thanks for your amazing videos dude !
Yup, that's what I did in this video too. You couldn't see it properly due to the angle I took the video but I used a clamp I made years ago the same way by cutting it open lengthwise and using it to connect the two tubes.👍I had more of these tubes and used them as chimneys for my sauna build.
I would of used a string line and used a jack when doing the sides to help with the sag. Jack it up before welding in the side angles. But can't wait to see more.
I did that while getting the end caps on. Once the square tubes were stretched there was no need for the jack anymore.👍
สวัสดีครับ
I love your videos. Been a subscriber for quite a while. I have to tell you the website label at the bottom of the screen for your RUclips channel is quite distracting. We all know who we're watching. Keep up the good work
Sorry for that. I'm gonna keep it since people are stealing my videos and uploading as their own content. This watermark should make the stealing process harder.
Attention de ne pas vous tronçonner un pied. 👍👏👏👏👍
You should take a couple of minutes to explain the properties of a tension bean & how it achieves those goals...
Square tube rails are stretched over the 160mm round tube making them straight and level creating good base where to start the truss beam build from.👍
🤘🤠
Yeah, you don't expect square tubing to flex that much, until you're trying to make it play nice with the rest of the steel...
Exactly!
👍👍👍
👍
Do you also work fuelled by a low simmering endless rage? How do you have such a strong ability to work so much?
🤣 Pretty much yeah. Channeling rage to work is really efficient. Especially after reading naysayers comments about what I can't do. Then I switch to "Hold my beer and watch this!" mode and get stuff done.😀
@@DonnDIY 😂 so it’s not just me then. I don’t always find it easy though - often puts me in a bad mood. But it’s a driver like no other!
👍👍
Hello, greetings from Germany.
Unfortunately I'm missing a materials list here.
e.g. The dimensions of the square tubes and also the total lengths.
My steel dealer only delivers full 6m lengths and with travel costs, so you want to order the whole thing straight away.
Otherwise a nice project, I build almost everything myself and restore 60-year-old agricultural machinery.
Im guessing once the tube is removed you will add some adjustable braces in the centre?
First of all I'm gonna see what the truss beam does and how it behaves when suspended. Then probably add steel cable(s) with adjusters so I can pull up the possibly sagging center section.👍
Perfectus Erectus.
🤣👍
How did you get this 7m long beam out of your workshop?
Nice work, I like everything you do
I haven't gotten it out of the workshop yet. Maybe I won't at all. 🤣
@@DonnDIY Oh, nooo! Mr. Donn!
stupid question: will you be able to get it around the corner and out the door? it looks pretty long. Or are you going to go straight out through that window on the other side of the doors?
Looks pretty tight, but might just be an optical illusion or maybe I need stronger glasses!
lol
That's a good question. It should get around the corner.🤞Fingers crossed!😄
👏👏👏👍
I read somewhere that stretching steel by about 3-5% is usually good enough amount of tension for this kind of thing, in case that helps anyone out.
It definitely helps me out, cheers!🙏
Вподобайка
👍
One more nice video. In witch country do you life?
Estonia.👍
😊👍💯❤🔥❤🔥❤🔥❤🔥❤🔥
Please, put additional rubber tube on the gaslift to prevent damage of surface
Great advice.🙏
Is it just that one beam or do you have to make another one?
Just one beam.👍
So curious how this will look when it is done.
I hope I'm able to assemble it in the upcoming week.👍
🙂👏👏👏👍🙂
Не бережёт он палецы😏
🤔
So will it have to go out through the window?
Hopefully not!🤞😄
11:08 What's the significance of using square tubing for tensioning vs round tubing? Is square tubing cheaper?
I'm using the 160mm round tube for tensioning. And the square tubes are getting tensioned/stretched. I use square tubes as rails where the saw carriage will ride on. More surface area.👍
Ah. You will remove the tube after welding!
I read it in the comments.
I was wondering why you connect both tubes with a "collar"(?) but not weld them.
Yep, getting that 160mm tensioning tube out of the beam will be a hassle though. But doable!👍
@@DonnDIY I think we all really want to see that feat, Donn! I'm thinking you are going to have to assemble the whole mill outside or if there is enough room, in that cold corridor just outside your shop space.
Question. How are you going to get that out of there?
Pick it up and carry out.🤷♂️😀
Hei, väga lahe ettevõtmine. Millist valget märkr markerit kasutad?
Tänud! Hea küsimus, Markal oli äkki see firma, pärit werkado-st👍
was gonna ask how you gonna get the tube out, but then remembered the ends are just plates, so dont mind me :D
Yup, getting the end caps off and just pulling the tube out. Or so I plan. The reality will be something different probably.🤔
Perhaps you'd benefit from a couple of cheap skateboards for moving heavier stuff about! 🙂
Yes 😄
Ich glaube es wäre einfacher gewesen die Stangen und das Rohr vorher zu entrosten. Jetzt ist das ja schwierig.
Pipe will be removed after the beam is fully welded.👍
That looked like one tedious job. I notice you like to use re-bar a lot, why, is it stronger or cheaper? And how are you going to pre-heat that whole structure for welding, and or is that really necessary?
I still have no idea where your going with this, wont I be shocked........
Rebar was stronger, cheaper and lighter material. All great things when building a truss beam. I'm gonna pre-heat only the weld area with a gas torch so that the weld doesn't bend the rail tube after it cools down. Otherwise I will just weld on a cold material and once the weld cools it'll pull on the tube. I hope it makes sense.😀