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How to bend acrylic pipe perfectly.

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Step 1:

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Measure the inner diameter of your pipe.

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Mine is 18 millimeter and outside is 22 millimeter.

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Step 2:[br]Get a silicon rod that fits on the inside of your pipe.

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Mine is a medical silicone rod and it's exactly 18 mm.

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Step 3:[br]Cut your silicon rod to length and then

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cut a taper at one side.

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Drill a hole through the tapered side.

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[drilling noise]

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Step 4:

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Use a really strong string and thread it through [br]that hole you just drilled in the silicon rod.

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I have noticed that bending a thin metal wire and [br]using that as a kind of a needle really helps with this.

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Step 5:

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Here I'm putting some corn flour starch on [br]the silicon rod to make it slide easier.

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You can also try washing-up liquid or soapy water.

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And that's all the preparation done.

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so we can finally thread our silicon rod [br]through the acrylic pipe.

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Put on some gloves and start up your heat gun.

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[heat gun starts]

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Step 6:[br]Bending the acrylic pipe.

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Try to heat up the acrylic pipe as evenly as you can.

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You can adjust the temperature by [br]moving the silicon rod

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closer or further away from the heat gun.

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And in my experience the further away[br]you are and the more patience you spend and

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the slower you do this step[br]the better the result.

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Once you feel the acrylic softening up,[br]you can do your bend.

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I like to try to stay in the heat of the heat gun[br]but a little bit further away.

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Constantly keeping the acrylic warm[br]while I'm doing the bend,

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and then removing the acrylic from the heat gun[br]when I'm happy with the shape.

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[poink]

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[water swishing sound]

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So this was my first try and it's not perfect.

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You can see here I let the heat go[br]a little bit too far.

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So we have these ugly bubbles[br]and the whole pipe is a little cloudy.

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I think it was because[br]my gloves were really oily.

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So it was a stupid choice of gloves.

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The corn flour starch[br]normally doesn't cloud my pipes

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But for the second try I wanted to use [br]washing-up liquid and clean gloves instead.

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Let's see how that went.

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For the second try, I went with a really tight radius.

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And as you can see here, I think I got greedy[br]and went with a little bit too tight radius.

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The pipe looks clear though.[br]No more cloudiness.

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And, I would recommend you to order more material[br]than what you need for your project, because

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you will have some failed pipe.

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Practice makes perfect as always.

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Okay![br]Third time's the charm.

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[pop]

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(silicon rod falls to the ground)

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(marble rolls on the floor)

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[clang]

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Whoever said that perfection does not exist[br]and that it's a fool's errand to pursue it...

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did not look at my thumbnail picture in 4K resolution.[br][chuckles]

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Anyway, I hope you enjoyed this tutorial.

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It's a true pleasure to bend acrylic pipes[br]and now you have to make up a project.

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just to be able to experience it.

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The reason why I'm bending so much acrylic pipe[br]right now is because of the Marble Machine X.

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♪

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Here I'm using bent acrylic pipe[br]for marble transportation,

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connecting the demagnetizer[br]with the marble conveyor belt.

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And higher up on the machine I have connected[br]the outlet from the conveyor belt and

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the fish star with the marble divider.

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And also, the marble divider itself[br]is made from bent PMMA pipe.

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[♪ unreleased/The Marble Conveyor ♪]

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I have just started to work on the most difficult acrylic pipe[br]bending project of the whole Marble Machine X build.

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I need to connect the marble spreader that[br]I built in plywood with these metal rails.

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And all the pipes want[br]to collide with each other.

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I need to find perfect routing[br]for this to work.

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Here I'm working on channel 22 which is[br]the last channel of the vibraphone.

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And there's a total of 38 channels.

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So I need to make 38 individual pipes.

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And I'm using a TIG filler rod[br]to create a bend template,

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[whoosh] to get a feel for[br]what kind of geometry I need a pipe to be.

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Then I can use this bend template[br]to create a general shape for the pipe.

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O! O! Oh! Hold on![br]What's this beauty!

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[angelic sound]

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If you remembered,[br]I found this stud-welding CNC machine,

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eh, that I thought was amazing[br]and I reached out to them and

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asked if they wanted to collaborate.

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And then something truly beautiful happen

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Because you the viewer, started to [br]leave comments to HBS explaining why they should

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collab with me on the Marble Machine X.

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My favorite was that they should lift up[br]an artist from the sunken cost vortex.

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[chuckles]

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[angelic sound]

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I went back to send an email to HBS[br]and when I opened my email,

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I found an email from HBS.

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That's thanks to all your comments.

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Thank you so much for sticking up[br]for the Marble Machine X and

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thanks to HBS for being positive[br]towards the project.

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I send some requirements and they sent me[br]this test piece.

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And I just want to show you[br]how extremely precise this is.

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Here I'm using a micrometer[br]which is measuring in millimeter.

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When you hear the first click[br]of the clutch of the micrometer, [<i>click</i>]

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That's when you should read your value

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[click]

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18-0-0-2 (18.002)

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I'm actually measuring quite crooked.

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So if I had the place to measure more straight[br]we would get even better result.

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[click]

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19.015

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This machine is down to [br]thousands of a millimeter in precision.

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It's just so promising.

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[click]

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20.008

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[laughs]

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(imitates evil laugh)

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Shout out to HBS.

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We're looking at...

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using my manual programming pin system[br]that I already built

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for me when I'm composing music for [br]the Marble Machine X,

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and then using this more sturdy,[br]reliable, pre-programmed and precise

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stud-welding programming pin system[br]from HBS for the world tour.

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So we can have the best out of[br]two worlds there.

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I'm completely side-tracked[br]in this video now.

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I'm just so happy about this prospect.

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Let's go back to some[br]PMMA pipe bending. Shall we?

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Ah! Le!

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I'm using the template [poink] [br]and creating the general shape

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and here I'm making a little mark,[br]so I can cut it to length.

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And then I can open the marble spreader[br]and see if the pipe fits.

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And this first pipe actually fits perfectly.[br]You can see the marble is coming out there.

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♪

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The first pipe is easiest.

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The consecutive pipes are going to be[br]much more difficult because

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they have the problem of[br]colliding with each other.

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This is the moment where I realized[br]I made 3 pipes and I have 35 pipes to go.

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[chuckles]

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Phew!

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[applause]

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[♪ unreleased/The Marble Conveyor ♪]

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In situations like this where I need to do[br]really repetitive work,

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which happens a lot on a Marble Machine X[br]due to its 38 channels,

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I keep myself going by repeating[br]an inner mantra.

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It goes like this:

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It goes like this: "world tour world tour world tour"[br][chuckles]

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But seriously I totally underestimated how[br]time-consuming it was to make these pipes.

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So, over eight hours later I had[br]managed to do 11 out of 38 pipes,

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and I had to call it a day.

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I will return to finish this task as soon as possible,

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but for now, I could just check the pipes I have made,

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and they seem to work well.

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[marbles clattering]

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[marbles clatteringon the floor]

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[♪ unreleased/The Marble Conveyor ♪]

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[sound of marbles falling into the box]

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♪

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[clang]

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♪

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[marble clatters on the floor]

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[marble clatters down the stairs]

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At this moment I felt like a vampire.

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It was like the marbles showed me[br]the way out of my studio and into the Sun.

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I spent a little time inside my Studios.

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So I was, so happy strolling around with the camera

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[frogs croaking][br]Listen to this frogs outside my house

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[croaking continues]

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[wind noises]

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This is 24/7 [chuckles][br]This goes on!

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This is my apricot tree.[br]I found the first apricot the other day.

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You see it?

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You see it?[br]There!

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It's an apricot!

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So cool!

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There's a huge rose here on the front of the house

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I got my 'Skeppshult' here under the rose

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He's having a good time there.

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It's like Ferdinand.

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Yes! It's smelling the flowers

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[chuckles]

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BBC Planet Earth, (has) got nothing on me.

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Okay! So, thank you so much for watching[br]and believing in the Marble Machine X.

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See you next week!

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[Marble Machine X winding down sound][br][frogs croaking]

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// Subtitled by Wintergatan Writers. Join our team on discord. //