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How to bend acrylic pipe perfectly.

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Step 1: Measure the inner diameter of your pipe -

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18 millimeter and outside is 22 millimeter.

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Step 2: 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: 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 table side.

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Step 4: Use a really strong string and thread it through 
that hole you just drilled in the silicon rod.

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

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Step 5: Here I'm putting some corn flour starch on 
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 
through the acrylic pipe.

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Put on some gloves and start up your heat gun.

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Step 6: Bending the acrylic pipe.
Try to heat up the acrylic pipe as evenly as you can.

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You can adjust the temperature by moving 
the silicon rod closer or further away from

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the heat gun and in my experience 
the further away you are and the more

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patience you spend and the slower you do
this step the better the result.

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Once you feel that critics often hang up 
you can do your bend.

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

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Constantly keeping the acrylic warm
while I'm doing the bend

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

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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
a little bit too far so we have these

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ugly bubbles and the whole pipe is a little cloudy.

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I think it was because my gloves were really oily 
so I was a stupid choice of gloves.

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The corn flour starch normally doesn't cloud my pipes

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

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Let's see how that went for the second try/

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I went with a really tight radius as you can see here.

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I think I got greedy and went with a little bit
too tight radius.

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The pipe looks clear though.

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No more cloudiness and I would recommend you to 
order more material than what you need for your

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project because you will have some failed pipe.

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Practice makes perfect as always.

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Okay! Third time's the charm.

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Whoever said that perfection does not exist and 
that it's a fool's errand to pursue it did not look at

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my son nail picture in 4k resolution.

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Anyway, I hope you enjoyed this tutorial.

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It's a true pleasure to bend acrylic pipes and 
now you have to make up a project just

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to be able to experience it.

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

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Here I'm using bent acrylic pipe for 
marble transportation connecting the

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demagnetizer with the marble conveyor belt and 
higher up on a machine have

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connected the outlet from the conveyor belt and
the fish star with a marble divider and also

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the marble divider itself is made from bent PMMA pipe.

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I have just started to work on the most difficult acrylic pipe
bending project of the whole Marble Machine X filled

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I need to connect the marble spreader that I built in
plywood with these metal rails and

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all the pipes want to collide with each other.

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I need to find perfect routing for this to work here.

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I'm working on channel 22 which is the last channel of
the vibraphone and there's a total of 38 channels.

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Since we need to make 38 individual pipes.

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And I'm using a TIG filler rod to create a bend template
to get a feel for what kind of geometry I need a pipe to be

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then I can use this plan template to create
a general shape for the pipe.

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oh oh oh. Hold on!
what's this beauty!

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If you remember, I found this stud welding CNC machine
that I thought was amazing and I reached out

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to them and asked if they wanted to collaborate
and then something truly beautiful happen.

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Because you the viewer started to leave comments
to HPS explaining why they should collab with

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me on the Marble Machine X.

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

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I went back to send an email to HPS and when
I opened my email I found an email from HBS

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Tthat's thanks to all your comments.

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

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thanks to HBS for being positive
towards the project.

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I send some requirements and they sent me
this test piece and I just want to show you

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how extremely precise this is. Here I'm using
a micrometer which is measuring in millimeter.

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When you hear the first click of the clutch of
the micrometer that's when you should read your value

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18.
I'm actually measuring quite crooked.

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So if I had a place to measure more straight
we would get even better result.

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

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It's just so promising.

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[Music]

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We're looking at using 
my manual programming pin system that I already

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built for me when I'm composing music for 
the Marble Machine X and then using

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this more sturdy, reliable, pre-programmed,
precise studwelding programming pin system from

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HBS for the world tour.

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So we can have the best out of two worlds.

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There.
I'm completely side-tracked in this video.

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Now I'm just so happy about this prospect.

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

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I'm using the template and creating the general shape and
here I'm making a little mark so I can cut it to length.

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And then I can open the marble spreader and 
see if the pipe fits and this first.

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Pipe actually fits perfectly you can see.

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The marble is coming out there the first type is easiest.

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The consecutive pipes are going to be much more difficult

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Because they have the problem of colliding with each other.

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This is the moment where I realized I made
three pipes and I have 35 pipes to go.

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[Music]

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[Applause]

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In situations like this where I need to do
really repetitive work which happens a lot

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on a Marble Machine X due to its 38 channels.
I keep myself going by repeating an inner mantra.

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It goes like this: "world tour world tour world tour"

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

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So over eight hours later I had managed to do
11 out of 38 pipes and had to call it a day.

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I will return to finish this task as soon as possible,
but for now I could just check the pipes I made.

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And they seem to work well.

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[Music]

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[Music]

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[Music]

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At this moment I felt like a vampire.

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It was like two marbles showed me
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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I was so happy strolling around with the camera

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This is my apricot tree I found

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the first effort of the other day you

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see it there as an applicant there's a

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huge growth here on the front of the

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house

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[Music]

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I have my absolute here under the rose

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he's having a good time there it's like

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virginal just smelling the flowers BBC

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parents are got nothing on me okay so

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thank you so much for watching and

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believing in the model

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[Music]