I'm going to disagree with many other people and say the car alarm really made this video for me. I mean, the mechanism is clever and OP's technique is excellent, plus the opportunity to show grace under pressure.
Very helpful to see how to bend thick Plexiglass. I've been looking for this for a long time. Seeing the wide channel for the heating wire is very useful information. I've read that the gap should be three times the thickness of the Plexiglass, but never seen it in action before. Thanks.
Thanks fellas. I'll save money AND get to make those hi-tech looking enclosures. Maybe repurpose some old junk along the way. I have a bender brake for sheet metal--gotta love that harbor freight. BTW I like how you put the piece still warm and malleable into the final "application" so it would form to ideal fit--very nice technique. So actually you have taught us THREE things. 1) How to make a strip heater out of common materials (rather final product thereof) 2) How to bend plexiglass 3) Final forming as opposed to attempting to pre-form and risking botching it. You guys rock!
Tried harbour for the first time today as it happens. 20x30mm 12" length of copper...only $180 not including shipping😱. I'll be sticking with eBay/amazon/ali
@@luminousfractal420 BTW this comment is 7 years old that you're responding to. I can't comment on the current version/revision of a tool. A bending brake is pretty simple though. There's the "bender" part you lay your stock on top of, and the "former" weight (or piece). I'd think it's hard to mess that up, unless they made it out of flimsy aluminum. --Or were you bemoaning the costs to ship it out to you?
I just lay out a line with a square and draw it with a black sharpie. then wave a heat gun up & down the line till it's bendable & bend it to the appropriate angle, being careful not to stop the gun anytime or the plexiglass will bubble & froth. It doesn't do well on sharp corners, unless you have a form to clamp it in, but then, I have to have someone else helping me, cause it looses its heat to quickly. I enjoyed your video. It gives me ideas. thanks
So heat from electric wire allows plexy to bend? That is totally informative! Thanks! I will not be using my magnifying glass any more. So much quicker!
@@-kohakuma- doing pretty well as a computer programmer in healthcare, extending access to resources to underprivileged populations! thanks for asking :) hope you've made good use of the five entire years since I posted that comment as well
Hi OTS, I really wish I was able to do this, but it's hard for me to picture how you set up the coil....would you mind explaining like where you got the coil or how you hooked it up? Great video, thanks!!! - LK
When I was at school (like 40 years ago) we had a commercial version of this in the Art and Craft section. They do a much better job of localising the heat than a hot-air gun does and give a tighter bend. Bedding the element into a bead of fire-cement would be one way to make it marginally safer. But I am guessing this is in the US where the mains voltage barely stings anyway.
I don't want to know what happens if you touch it. The one I had at work (A heater that accepted 1,2 meter wide parts) was low voltage. Burned myself a couple of times when a piece nearly either made contact with the wire or for some other reason, but considering the hot wire breaks the skin barrier that usually saves you from a very nasty shock, I don't want to know what happens when you accidentally make contact with it, 120 or 240 VAC or not. Just use low voltage or make sure you isolate the heater wire from mains supply. The last option is still dangerous should you make contact at two points on the wire, but at least you're isolated from ground. I certainly would not use aluminium foil surrounding such a wire but sturdy profile that you can ground should you NOT use an isolated solution.
It's not the voltage or the amperage like @philgray1023 said. It's wattage. That is determined by the resistance of the coil. You apply voltage to a coil, how much resistance it has determines how much amperage is needed to "push" through the coil. That's wattage. Volts X Amps = Watts. The only thing higher voltages do is allow for less amperage through the same resistance to achieve the wattage. Therefore keeping the electric bill lower and the size of the protection device and wire smaller in effective size. More volts = less amps to achieve the same wattage...
Good video. Just be aware of the potential electric shock hazard if you have mains voltage connected to that hair dryer heater element, and conductive aluminium film covering the MDF!
+Tom Nicholls You didn't read my comment properly before replying. I'll try again: The connection from the mains wire (bzzzzzt, shock, ouch) to the heater element is made above electrically conductive aluminium foil. So if this mains connection touches the foil then the foil becomes live... and then if you touch the foil you could become dead.
What's the (barrier viewed @ 0:26) under the hair dryer coil made of and where did you get it? That's the key to using the hair dryer coil, the (barrier viewed @ 0:26) it's like the silver heat resistant board the coils are wrapped around in the hair dryer.
I'd rather they did a video on how to install, test, and disable the car alarm. A LOT of planning went into the making of this video-at least 5 minutes worth-enough to get the camera turned on.
***** Car alarms are fairly complex beasts altogether... first you have to find the wavelength or frequency that the radio operates on, then you have to encode and decode the signal required for communication with the alarm. This all could take weeks depending on the intelligence, database and raw processing power of the data integrity team and their hardware. Unfortunately, the heavy-breather behind the camera, and the flipit man may not have the assets required to perform such an intricate and overreaching behemoth of a task. Likely they would resort to either: refilming a 5 minute video (beyond the scope of the intended budget), removing the battery from the vehicle (legal nightmare with attorney paperwork/legislation, not to mention the engineers that would have to be hired on to a contract of unspecified timing), or filming at a different location (possible zoning restrictions and hostility from local governing bodies). Sadly I believe the end result is that the videographic tribulation of blood sweat and hair driers that is layed out before us may be the only recorded documentation that can be produced at the current time. Hopefully future generations will be able to abstract any underlieing truths and key theories from this experiment and reproduce it in a future analogous digitization, documenting the relativity of localizing a thermal concentration and warping the bendy thingy with one's hands. Godspeed.
Thank you for the informative video. My apologies for the negative comments made by others. No good deed goes unpunished. I would like to know what material you placed directly under the heat cool. Thanks!
I love your idea, i would even make another heater on the top (mobile, with weight) so you dont need to keep turning over bbq style. What do you think?
Would the plexi have been easier to put in your mold if you had left it across the heater element! Just curious as I saw what I perceived you struggled to get the fast cooling plexi into the mold. Just a thought.
if you point one of those laser temperature readers on the plexiglass, what temp should it be before you start to bend it ? Obviously a 1/16 thick will reach temp quicker than this expensive chunk you're demonstrating with.
could you use a curling iron? I didn't get how you put the hair dryer to the coil but on a small plexiglass window a curling iron might work it isn't very long but it only has to bend in the middle
Interesting idea, but you've made the angle significantly weaker by bending back and forth in that way. You should have an even heat source and then mold it around a solid form. Only 'bending' it once.
pretty awesome. Not sure i'd recommend having tin foil so close to the element. May as well put a knife in the toaster. Still an effective method of bending. Well done
I wouldn't consider bending acrylic sheet with the improvised device shown here. Glass fabric-covered flexible heater elements are available that have no exposed conductors and don't glow red-hot, thus not requiring frequent flipping of the workpiece to prevent bubbling and scorching.
The heated coil was the key, but apart from saying it was from a hair dryer, there was no info on how much coil, or how to wire it up or how to stop the foil sheet becoming electrically live and deadly to touch.
Fascinating... Exposed live wire on surrounded by aluminium foil, covering the whole work surface you touch with your bare hand on each end of culture direction.
is there a video on how u make clear acrylic white? and then is there somethign that tells u how to get those smooth sides instead of the cut look and feeel ?
No answer to your first question. Just buy white acrylic. For clean cuts: Use a cutter i.ytimg.com/vi/sFifcsgWk_c/hqdefault.jpg?sqp=-oaymwEXCPYBEIoBSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLC5de7l_SyZgUga4xs33-3uw0KVMg Or stick a tape where the cut is to be effected or use a piece of wood and cut with a fix circular saw th-cam.com/video/TrEKaVGSCNQ/w-d-xo.html Avoid jigsaw And as a final touch you can smooth the hedge of the cut with fine sandpaper. Amazing how the acrylic because clear again
Pretty dang cool. Seemed like one of those days, didn't fit and the car going crazy .I was waiting for you to say " Bend it." Then that being followed by an almighty shatter and you saying, " SH**t."
It's no wonder how many people get divorced because the husband lost his bone and his funny bone! Wtf kind of reply to a funny comment. Don't call people stupid it's not very nice and it's no wonder how many people say stuff like that behind a keyboard because if they said it in person they would have a headache very quick. I'm sure your wife gets them a lot being married to you hahahaha. I'm laughing bwahahahaha. Dumbo
Dude if that coil comes in contact with the aluminum foil one of two things is gonna happen: 1) a big loud pop or 2) a dead hombre if someone happens to be touching the foil at the time.
my opinion i think it would have better to just set it in as you are bending it. with you trying to bend it then set it in made it cool off and that is the reason that you could not get it in the form that you wanted to. Other than that i love your vid. but is a tutorial on how you made your heater to bend that Plexi. I would love to make one for myself. I would like to shape a hood made of plexiglass.
Right direction wrong tools guys. We did this 35 years ago. Try a coil from a clothes dryer. No need to flip, just wait for the distortion in the plexi
You know I wanted to see just how long I could hold my thumb on a heating element before it got too hot. The electric shock was prodigious! I guess we all learn stuff at the age of 7 that keeps us alive later on.
Me too, I think when I was 5. I grabbed the element with whole hand then switched it on! Argh.... Shock ramped up quickly and was significant, but fortunate only about half of the 240V. I can still remember the pulses!
I'm going to disagree with many other people and say the car alarm really made this video for me. I mean, the mechanism is clever and OP's technique is excellent, plus the opportunity to show grace under pressure.
Very helpful to see how to bend thick Plexiglass. I've been looking for this for a long time. Seeing the wide channel for the heating wire is very useful information. I've read that the gap should be three times the thickness of the Plexiglass, but never seen it in action before. Thanks.
That's really clever. No stress marks at the bend point. Nice work!
Thanks fellas. I'll save money AND get to make those hi-tech looking enclosures. Maybe repurpose some old junk along the way. I have a bender brake for sheet metal--gotta love that harbor freight.
BTW I like how you put the piece still warm and malleable into the final "application" so it would form to ideal fit--very nice technique. So actually you have taught us THREE things.
1) How to make a strip heater out of common materials (rather final product thereof)
2) How to bend plexiglass
3) Final forming as opposed to attempting to pre-form and risking botching it.
You guys rock!
Tried harbour for the first time today as it happens. 20x30mm 12" length of copper...only $180 not including shipping😱. I'll be sticking with eBay/amazon/ali
@@luminousfractal420 Pardon me, but your comment is a little sparse--did you mean the sheet of copper or the bending brake?
@@luminousfractal420 BTW this comment is 7 years old that you're responding to. I can't comment on the current version/revision of a tool.
A bending brake is pretty simple though. There's the "bender" part you lay your stock on top of, and the "former" weight (or piece). I'd think it's hard to mess that up, unless they made it out of flimsy aluminum.
--Or were you bemoaning the costs to ship it out to you?
guys thank you so much for this idea!!!! youve saved me so much work, money, and time of trail and error. thank you
I just lay out a line with a square and draw it with a black sharpie. then wave a heat gun up & down the line till it's bendable & bend it to the appropriate angle, being careful not to stop the gun anytime or the plexiglass will bubble & froth. It doesn't do well on sharp corners, unless you have a form to clamp it in, but then, I have to have someone else helping me, cause it looses its heat to quickly. I enjoyed your video. It gives me ideas. thanks
So heat from electric wire allows plexy to bend? That is totally informative! Thanks!
I will not be using my magnifying glass any more. So much quicker!
Nothing like multiple accidental car alarms to convey that extra feeling of professionalism.
Don't be an ass. He's showing you something for free. What have you done for society other than complain and take up space?
@@-kohakuma- doing pretty well as a computer programmer in healthcare, extending access to resources to underprivileged populations! thanks for asking :) hope you've made good use of the five entire years since I posted that comment as well
i almost gave up on the video, but this comment made me hang on till the golden moments!
@@sarah-vs9rb iiiiiii
@@WAXMYDONGHAIR Rofl.
Hi OTS,
I really wish I was able to do this, but it's hard for me to picture how you set up the coil....would you mind explaining like where you got the coil or how you hooked it up? Great video, thanks!!! - LK
I believe he dismantled a hairdryer and that's the coil that's normally inside of it.
When I was at school (like 40 years ago) we had a commercial version of this in the Art and Craft section. They do a much better job of localising the heat than a hot-air gun does and give a tighter bend.
Bedding the element into a bead of fire-cement would be one way to make it marginally safer. But I am guessing this is in the US where the mains voltage barely stings anyway.
It's the amps that makes magic happen.
I don't want to know what happens if you touch it. The one I had at work (A heater that accepted 1,2 meter wide parts) was low voltage. Burned myself a couple of times when a piece nearly either made contact with the wire or for some other reason, but considering the hot wire breaks the skin barrier that usually saves you from a very nasty shock, I don't want to know what happens when you accidentally make contact with it, 120 or 240 VAC or not. Just use low voltage or make sure you isolate the heater wire from mains supply. The last option is still dangerous should you make contact at two points on the wire, but at least you're isolated from ground. I certainly would not use aluminium foil surrounding such a wire but sturdy profile that you can ground should you NOT use an isolated solution.
It's not the voltage or the amperage like @philgray1023 said. It's wattage. That is determined by the resistance of the coil. You apply voltage to a coil, how much resistance it has determines how much amperage is needed to "push" through the coil. That's wattage. Volts X Amps = Watts. The only thing higher voltages do is allow for less amperage through the same resistance to achieve the wattage. Therefore keeping the electric bill lower and the size of the protection device and wire smaller in effective size. More volts = less amps to achieve the same wattage...
Make sure the volume is up so you can hear the plexiglass bend at 01:20
Good video. Just be aware of the potential electric shock hazard if you have mains voltage connected to that hair dryer heater element, and conductive aluminium film covering the MDF!
+Tom Nicholls You didn't read my comment properly before replying. I'll try again: The connection from the mains wire (bzzzzzt, shock, ouch) to the heater element is made above electrically conductive aluminium foil. So if this mains connection touches the foil then the foil becomes live... and then if you touch the foil you could become dead.
+ForViewingOnly sorry man, I got too sassy for my own good
+Tom Nicholls Hah hah :-) No worries Tom
super idea.. I assume with thinner plexi you might not need to flip... What is the best way to cut plexiglass
And that's how you bust eardrums. Upload a video with car alarms randomly going off. Great editing
What's the (barrier viewed @ 0:26) under the hair dryer coil made of and where did you get it? That's the key to using the hair dryer coil, the (barrier viewed @ 0:26) it's like the silver heat resistant board the coils are wrapped around in the hair dryer.
I'd rather they did a video on how to install, test, and disable the car alarm. A LOT of planning went into the making of this video-at least 5 minutes worth-enough to get the camera turned on.
***** if you are not interested don't comment
***** Car alarms are fairly complex beasts altogether... first you have to find the wavelength or frequency that the radio operates on, then you have to encode and decode the signal required for communication with the alarm. This all could take weeks depending on the intelligence, database and raw processing power of the data integrity team and their hardware. Unfortunately, the heavy-breather behind the camera, and the flipit man may not have the assets required to perform such an intricate and overreaching behemoth of a task. Likely they would resort to either: refilming a 5 minute video (beyond the scope of the intended budget), removing the battery from the vehicle (legal nightmare with attorney paperwork/legislation, not to mention the engineers that would have to be hired on to a contract of unspecified timing), or filming at a different location (possible zoning restrictions and hostility from local governing bodies).
Sadly I believe the end result is that the videographic tribulation of blood sweat and hair driers that is layed out before us may be the only recorded documentation that can be produced at the current time. Hopefully future generations will be able to abstract any underlieing truths and key theories from this experiment and reproduce it in a future analogous digitization, documenting the relativity of localizing a thermal concentration and warping the bendy thingy with one's hands. Godspeed.
+dmbadcat LOL. it's not often I get such a laugh from the comments section
I didn't even take my blow dryer apart! HOW LONG DID IT TAKE YOU TO MAKE YOUR PLEXY BENDER? IS IT UL LISTED?
Thank you for the informative video. My apologies for the negative comments made by others. No good deed goes unpunished. I would like to know what material you placed directly under the heat cool. Thanks!
Holy shit was that 1/2" glass? Nice vid bro....fuck all the haters who can't make their own video!
I love your idea, i would even make another heater on the top (mobile, with weight) so you dont need to keep turning over bbq style. What do you think?
Would the plexi have been easier to put in your mold if you had left it across the heater element! Just curious as I saw what I perceived you struggled to get the fast cooling plexi into the mold. Just a thought.
XD that car alarm scared the shit out if me
same 😅
Same here
+Spencer Henchen me too
Jesus, a warning would have been nice... Then it happened AGAIN.
I thought that's how you know it's ready to bend... lol
if you point one of those laser temperature readers on the plexiglass, what temp should it be before you start to bend it ? Obviously a 1/16 thick will reach temp quicker than this expensive chunk you're demonstrating with.
I learned that in the 7th grade in plastic work shop classes....and that was in 1984.....nothing is different.
could you use a curling iron? I didn't get how you put the hair dryer to the coil but on a small plexiglass window a curling iron might work it isn't very long but it only has to bend in the middle
That fuckin' car alarm nearly gave me a heart attack!. Still a good bend though :-)
if that almost gave you a heart attack, you must be a real panzy!
If you ever lose your job as a plexi bender, you've got the right skillset for a mcdonalds manager. "Flip it!"
shots fired 😂
daaang
AAAAAAAhahahahah thanks for the laugh
Nothing gets flipped at Mcdonalds haha
Had a good laugh :) :) :)
McGuyver's legacy will live on for ever ! !
Can plexiglass cut you like regular glass or is it safe to pick up broken plexiglass?
what about thin Car glass style plexi,can you use a heat gun and let it take form?
Awesome duders.
I'm guessing using a heat gun would distort the clarity of the plexi?
How did you make that plastic bender.
Interesting idea, but you've made the angle significantly weaker by bending back and forth in that way. You should have an even heat source and then mold it around a solid form. Only 'bending' it once.
pretty awesome. Not sure i'd recommend having tin foil so close to the element. May as well put a knife in the toaster.
Still an effective method of bending. Well done
have you ever replaced Windshield in 2005 Nissan Altima SL 2.5? are they different ways to seal it without rubber?
Good call, and I bought one for the missus a few years ago...😅
Quick question, why not use a heat gun?????
How did you earth the coil? Looks awfully close to the tin foil... :) Looks like theres something underneath the coil?
And how thick is that sheet?
You Sir, just saved me lots of cutting time. Thanks- Tarantula cage guy
How did you make it? Get the coil straight.
I grew up near a plastic company we use to use a heat strip
Eres un genio , saludos desde Perú
I wouldn't consider bending acrylic sheet with the improvised device shown here. Glass fabric-covered flexible heater elements are available that have no exposed conductors and don't glow red-hot, thus not requiring frequent flipping of the workpiece to prevent bubbling and scorching.
The heated coil was the key, but apart from saying it was from a hair dryer, there was no info on how much coil, or how to wire it up or how to stop the foil sheet becoming electrically live and deadly to touch.
Fascinating... Exposed live wire on surrounded by aluminium foil, covering the whole work surface you touch with your bare hand on each end of culture direction.
Very cool!! Nice set up!
is there a video on how u make clear acrylic white? and then is there somethign that tells u how to get those smooth sides instead of the cut look and feeel ?
No answer to your first question. Just buy white acrylic.
For clean cuts:
Use a cutter i.ytimg.com/vi/sFifcsgWk_c/hqdefault.jpg?sqp=-oaymwEXCPYBEIoBSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLC5de7l_SyZgUga4xs33-3uw0KVMg
Or stick a tape where the cut is to be effected or use a piece of wood and cut with a fix circular saw th-cam.com/video/TrEKaVGSCNQ/w-d-xo.html
Avoid jigsaw
And as a final touch you can smooth the hedge of the cut with fine sandpaper. Amazing how the acrylic because clear again
nice job and a very clean bend. was there some shattering or brittle observed at the sides of the bend ??
OceanBreeze
Pretty dang cool. Seemed like one of those days, didn't fit and the car going crazy .I was waiting for you to say " Bend it." Then that being followed by an almighty shatter and you saying, " SH**t."
If you dont mind me asking what was the thickness of the plexiglass
Great idea! Very slick.
So isn't the strength of acrylic affected in any manner?
240V live wire on Aluminium foil what could go wrong?
Whould 20mm thick plexiglass still bend with an ordinary heatgun if enough heat was applied
The wife said her hairdryer was not "unused" - well, I haven't seen her use it since I removed the element, I'm proven right YET AGAIN!
It's no wonder so many people get divorced. Could there really be people as stupid as you
Only 26 out of 27 people have a sense of humour.
It's no wonder how many people get divorced because the husband lost his bone and his funny bone!
Wtf kind of reply to a funny comment. Don't call people stupid it's not very nice and it's no wonder how many people say stuff like that behind a keyboard because if they said it in person they would have a headache very quick. I'm sure your wife gets them a lot being married to you hahahaha. I'm laughing bwahahahaha.
Dumbo
What is under the heating coil? Is it just a couple layers of tinfoil?
Dude if that coil comes in contact with the aluminum foil one of two things is gonna happen: 1) a big loud pop or 2) a dead hombre if someone happens to be touching the foil at the time.
is that the same acrylic ?
That car alarm woke my ass right the fuck up with my headphones on at 2am
If it shorts out and touches that aluminum foil.... why?
Were you building a number plate flipper? ;)
How did you get the coil out of the hair dryer?
how exactly did you modify the hairdryer to do this?
Samsung and Huawei: *hits blunt*
We could make a phone with this
Friend, is polycarbonate?
What to does plexi distort at?
Great vid dude i learned something today! Thanks
does that coil toutch the aluminium or is isolated??
isolated
until the coil moves......
If you got the coils from 2 hair dryers and put one over the top as well you wouldn't need to flip it. But ya, this is awesome
.
Is it plexy or polycarbonate?
How thick is that PlexigGlass ?
looks like 1cm
Good idea! And tx for sharing it with us! I'll make one as I want to make a big aquarium with clear edges!
d
mmm mains and aluminium foil... What could ever go wrong there... 😰
I'm sure it's OSHA approved
@@The1adventurebound and that is why USA have 110V mains instead of 240
my opinion i think it would have better to just set it in as you are bending it. with you trying to bend it then set it in made it cool off and that is the reason that you could not get it in the form that you wanted to. Other than that i love your vid. but is a tutorial on how you made your heater to bend that Plexi. I would love to make one for myself. I would like to shape a hood made of plexiglass.
KID THIS IS SOOOOOOOOOOOOOOO AWESOME !!!!!
Thanks for nearly giving me a god damn heart attack...twice!
i have always thought about pulling a toaster to bits to see if I could make one out of it
Right direction wrong tools guys. We did this 35 years ago. Try a coil from a clothes dryer. No need to flip, just wait for the distortion in the plexi
That damn car alarm scared the shit out of me!!!!
I think there is a strip of teflon under the heating element.
how you made heater, resourced from where?
May I know the use of metal foil?
I love Care Alarms. Last time I had one go off in my parking lot, It was funny as they took that car away while it was going down the street.
Thanks for the heartattack car alarm
What is the use of aluminium foil ?
I cant understand
C D Thanks
Well explained
How did you make it?
You know I wanted to see just how long I could hold my thumb on a heating element before it got too hot. The electric shock was prodigious! I guess we all learn stuff at the age of 7 that keeps us alive later on.
Me too, I think when I was 5. I grabbed the element with whole hand then switched it on! Argh.... Shock ramped up quickly and was significant, but fortunate only about half of the 240V.
I can still remember the pulses!
fuck I nearly died when the alarms went off
How degrees?
Nice thanks for the information
How did you power it?
whats the power source?
Nice work..good idea
Yeah but do I need to have a car alarm on it? Simple but clever. Thumbs up.
Sammy Spaniel the car alarm let's him know the thermistor reached temp lol.
Thank you! *grabs unused hair dryer
haha, you're welcome!
Love the background HORN
For shop use this is awesome! Great idea!
does it matter if the output is dc or ac?
▪USE AT YOUR OWN RISK!▪