There are different types of pcv the type they are using is sch 10 and could be Cell-core which is very brittle.If you drop a length on concrete it will crack like cast iron.Also no speed brake to stop over reving.
The PVC he was using is way to thin walled, it looks like sch 20 at best and I am sorry to say he is not very smart only a unlearned person would assume that toilet paper would make for a great blade. It looks like it is 1/8 " of an inch thick and this will not hold up at all. It does go to show us one thing and that is someone who tries this should do a little research on it before they look like a knuckle head. This is not the same material I have seen in other video's, they were using a sch80
PVC is not designed to withstand the kinds of forces present on a turbine blade like this. It doesn't matter how long the blades are in use, because they are this brittle even when they are brand new. I once made a radio antenna out of PVC pipe with wire in it, and it only lasted a short time on my roof before a good wind snapped it right off.
Blade sets are cheap Both Missouri wind and Windy Nation sell high quality blade and hub sets. It is to much trouble to build these blade sets easier to buy these balanced units that will last a life time!
well, lesson learnt, i am new into wind and i thought about pvc and had concerns of blade failure... this video and comments confirmed my suspicions... thanks,
PVC turns brittle when exposed to sun. Maybe the paint helps. Maybe ABS pipe would be better. If this design is easy for people, maybe the easiest upgrade would be to reinforce them with some fiberglass. It's fairly easy to work with and very strong.
This is a public service announcement. Thank you for uploading this warning.
I keep shouting "THEY ARE PAPER THIN!", but people need an accident (negligence) to feel like they need to change something. The original pvc wind turbines used blades three times the thickness.
Did you know we have already entered the sixth mass extinction phase in our planet's history? Or that we have a 50/50 shot at survival if we act now.
Our entire history can be for nothing in the next 30 to 50 years. Seriously
@derman077 good. there was nothing really worth saving in our civilizations' epochs. Just war, war, and oh look! More war! The ones who survive (if any do) will have to do better.
I know OF a young woman who was killed when a 1/2 inch piece of pvc from a similar windmill slipped through her ribs and pierced her heart! You are right these things can KILL!
Jeff I want to post this video on my site if it's ok with you. I know i have totally torqued a lot of jaws just by downing the pvc blades. some say that you need to use the green pvc and a whole lot of other suggestions. in my book the heavier the pvc the more force is created at high speeds. Good wooden blades are safer. and your raptor blades are light weight high strength quality plastic. and thin on the ends. Not much centrifugal force there. VERY SAFE!!
I have used PVC in a number of high speed turbines. Typical lifespan is 14 months, in all sorts of weather - including vicious storms. Failure occurs due to fatigue fractures.
7 years ago, I made 2 high speed turbines from aluminium tube. They are still in perfect working order today :) .
They have stood up to some of the most fearsome storms - without problems.
While aluminium may not be the best choice, its longevity is incredible.
i'm not sure if this would apply to Australia. i have used thicker walled pvc for my blades but the pip i used was for a different rating of water pressure. to brown55061 i have seen people on some neighboring boats have used black pvc for blades. i have seen the orange pvc used for blades too.
It could depend on what kind of PVC you use as well. Has anyone tried black ABS plastic? Was this pvc pipe schedule 80? The lighter stuff is going to flex more and break. Granted, the heavier wall PVC is going to have a higher startup wind speed but it wont break as easy. Just tossing out ideas, I haven't built one yet.
65 mph winds,I highly doubt it.you must sell plans on building cheap wind turbines using pvc.wait till they get frozen or brittle and come apart,and they will.
what dumbassification misses is that pma's need high speed to produce any power at all,pvc blades can never reach enough speed to create any usable power,don't waste your time or money. using pvc for anything but plumbing is not a good idea,ask a plumber.
lets say you pay $25.00 for autolaynes PVC wind turbine plans and you build it,your not at home and the wind speed picks up above 35 mph,it has no way to shut down.your neighbors or family has a HARD lesson to learn.i get emails every day from people that have had a bad or dangerous exsperience with PVC blades coming apart,high wind is not always what causes them to break,pvc gets brittle in the winter.people making money selling PVC turbine plans are making out very well.
first,your name fits you,second ,you should do more research on turbine blades before you comment.our turbines are never shut down,they are rated for 135mph winds.the 4 wind turbines that run on our store roof have survived several tornado's pssing by,straight line winds 80 mph plus.there are metal blades manufactured that do not shut down in 35 mph winds.most of the turbines being built out of pvc have no furling or any kind of shut down for any wind speed.
Most people shut down thier wind turbines at 35 mph. It does not matter what blade material you have you arent supposed to run a turbine at rediculous rpm. Sorry to see you learn the hard way.
point you make is good on the steel bracing,problem is when the pvc becomes brittle that flexing is going to cause them to snap off.one guy tried to tell me there is no latteral force whatsoever on the blades,he come up with graphs and charts and scientific figures and said i was lying.of course he was pushing layne ericksons video(WHICH HE NOW SELLS FOR $25.00)and wind blue.layne even admits that when the blades eventually break,he wouldnt want to be around.thanks for comment.
Just for the record, I mounted a set of 24 inch blades to close to its 4x4 mast just to see what would happen. Result when the pressure of the wind against the blade forced it in to the mast at around 30 mph wind I was shocked to see chunks of 4x4 flying around and my blades were fine I watched them hit over and over and they never broke. I always thought the steel running the length of the blade was a bad idea it leaves little room to flex in high wind. JUST TRYING TO HELP
Pvc is right is more facilde change and become any kind of way, but in terms of its durability is very limited if not how long is that turbine was ESPONSE sun makes me make a few parts that should be avoided prior to this location, the PVC is lightweight and easy to handle can be installed pvc Cedula 40 to give a longer life.
the purpose for this video is not to knock guys trying to save money,but to inform people of the dangers of using pvc for wind turbines.cities and counties are banning micro turbines because of these types of wind turbines,not because of the safe and quiet ones.neighbors are afraid to have these next to there yard for good reason.the guys selling plans for these pvc turbines say i am lying.i will post all comments ,good and bad,unlike the limited time offer guys. lets not loose free electric.
@turbineguy100 PVC is ridiculously brittle - ABS would be a better choice, but idk why anyone would put bolts through it and expect it to not crack @ those incredible RPM's and effective g forces. PVC makes a pretty nice mold material for carbon fiber or fiberglass blades though ;-)
PVC pipe becomes brittle after time, and why thousands of water taps were replaced in San Antonio.
Within 20 years they all started to go bad, and that is underground, protected from sunlight.
Yes, they were schedule 80 or better.
Arabhacks 1 month ago
There are different types of pcv the type they are using is sch 10 and could be Cell-core which is very brittle.If you drop a length on concrete it will crack like cast iron.Also no speed brake to stop over reving.
gatorschaf 4 months ago
The PVC he was using is way to thin walled, it looks like sch 20 at best and I am sorry to say he is not very smart only a unlearned person would assume that toilet paper would make for a great blade. It looks like it is 1/8 " of an inch thick and this will not hold up at all. It does go to show us one thing and that is someone who tries this should do a little research on it before they look like a knuckle head. This is not the same material I have seen in other video's, they were using a sch80
StarTrek2012 5 months ago
@StarTrek2012 PVC of any thickness will break. If you knew anything about wind turbine blades you would definetly never use PVC .
Jeff,MWAS
jeffmolly1 5 months ago in playlist More videos from jeffmolly1
@StarTrek2012 The 6 P's of good construction ... Prior Planning Prevents Piss Poor Performance. Works every time.
rbodell 2 months ago
PVC is not designed to withstand the kinds of forces present on a turbine blade like this. It doesn't matter how long the blades are in use, because they are this brittle even when they are brand new. I once made a radio antenna out of PVC pipe with wire in it, and it only lasted a short time on my roof before a good wind snapped it right off.
ccoraxfan 7 months ago
Blade sets are cheap Both Missouri wind and Windy Nation sell high quality blade and hub sets. It is to much trouble to build these blade sets easier to buy these balanced units that will last a life time!
troybrownrigg 9 months ago
well, lesson learnt, i am new into wind and i thought about pvc and had concerns of blade failure... this video and comments confirmed my suspicions... thanks,
energyman1988 1 year ago
Im thinking that if someone is out in a 40 mph wind storm then they are gonna get hit by something anyway......
superjezz 1 year ago
PVC turns brittle when exposed to sun. Maybe the paint helps. Maybe ABS pipe would be better. If this design is easy for people, maybe the easiest upgrade would be to reinforce them with some fiberglass. It's fairly easy to work with and very strong.
MrSafetymeeting 1 year ago
This is a public service announcement. Thank you for uploading this warning.
I keep shouting "THEY ARE PAPER THIN!", but people need an accident (negligence) to feel like they need to change something. The original pvc wind turbines used blades three times the thickness.
Did you know we have already entered the sixth mass extinction phase in our planet's history? Or that we have a 50/50 shot at survival if we act now.
Our entire history can be for nothing in the next 30 to 50 years. Seriously
derman077 1 year ago
@derman077 good. there was nothing really worth saving in our civilizations' epochs. Just war, war, and oh look! More war! The ones who survive (if any do) will have to do better.
d3ejmz 6 months ago
Though Aluminium is surely more dangerous than PVC, I have been running 3 aluminium turbines for over 7 years now.
The turbines are 1.4 metres in diameter - and generate 30A at 15V.
There have been no failures in all that time, even though we have had many violent storms. My PVC blades never lasted longer than 18 months.
Has anyone else tried Aluminium tube for blades?
PonyHaven 1 year ago
@PonyHaven
finally a use for that old mast i have laying around, thank you nice idea.
planexzeropoint 1 year ago
I know OF a young woman who was killed when a 1/2 inch piece of pvc from a similar windmill slipped through her ribs and pierced her heart! You are right these things can KILL!
kk72390 1 year ago
@kk72390 Life kills.
slammer489 1 year ago
Jeff I want to post this video on my site if it's ok with you. I know i have totally torqued a lot of jaws just by downing the pvc blades. some say that you need to use the green pvc and a whole lot of other suggestions. in my book the heavier the pvc the more force is created at high speeds. Good wooden blades are safer. and your raptor blades are light weight high strength quality plastic. and thin on the ends. Not much centrifugal force there. VERY SAFE!!
pvc BLADES CAN KILL! tnx 4 THE VID.
muddymuddymuddmann 1 year ago
@muddymuddymuddmann
sure you can use it.
thanks,jeff
jeffmolly1 1 year ago
Thanks for the heads up.
drychalice 2 years ago
Nasty lesson!!
I have used PVC in a number of high speed turbines. Typical lifespan is 14 months, in all sorts of weather - including vicious storms. Failure occurs due to fatigue fractures.
7 years ago, I made 2 high speed turbines from aluminium tube. They are still in perfect working order today :) .
They have stood up to some of the most fearsome storms - without problems.
While aluminium may not be the best choice, its longevity is incredible.
PonyHaven 2 years ago
thank you brother, you show me how is important to looking from oder angle for healt, i'll think again and again..
oveterinaryTR 2 years ago
balance is everything . static and dynamic also light weight moves easier looks like old usn shirt..
silverbird58 2 years ago
Wow , I would like to see fast moving sharp objects flying thru the air. Well atleast at my exwifes house.
fred30680 2 years ago 2
i like applesauce
mikenator55 2 years ago
what kind of motor are you using?
radio517 2 years ago 2
to radio517
ametek 38 volt.
jeff
jeffmolly1 2 years ago
To jeffmolly1
Thanks
radio517 2 years ago
It can happen in +40mph winds. Like someone else said, sorry to see you learn the hard way.
JimminyPricket 2 years ago
i'm not sure if this would apply to Australia. i have used thicker walled pvc for my blades but the pip i used was for a different rating of water pressure. to brown55061 i have seen people on some neighboring boats have used black pvc for blades. i have seen the orange pvc used for blades too.
rumjar 2 years ago 2
It could depend on what kind of PVC you use as well. Has anyone tried black ABS plastic? Was this pvc pipe schedule 80? The lighter stuff is going to flex more and break. Granted, the heavier wall PVC is going to have a higher startup wind speed but it wont break as easy. Just tossing out ideas, I haven't built one yet.
brown55061 2 years ago 2
bull shit 65 mph in the try citys no prob
moptrucks 2 years ago
to moptrucks
65 mph winds,I highly doubt it.you must sell plans on building cheap wind turbines using pvc.wait till they get frozen or brittle and come apart,and they will.
jeffmolly1 2 years ago
scary
mgcreed 2 years ago 6
what dumbassification misses is that pma's need high speed to produce any power at all,pvc blades can never reach enough speed to create any usable power,don't waste your time or money. using pvc for anything but plumbing is not a good idea,ask a plumber.
MultiGreenman 2 years ago 3
to dumbassification
lets say you pay $25.00 for autolaynes PVC wind turbine plans and you build it,your not at home and the wind speed picks up above 35 mph,it has no way to shut down.your neighbors or family has a HARD lesson to learn.i get emails every day from people that have had a bad or dangerous exsperience with PVC blades coming apart,high wind is not always what causes them to break,pvc gets brittle in the winter.people making money selling PVC turbine plans are making out very well.
jeffmolly1 2 years ago
to dumbassification
first,your name fits you,second ,you should do more research on turbine blades before you comment.our turbines are never shut down,they are rated for 135mph winds.the 4 wind turbines that run on our store roof have survived several tornado's pssing by,straight line winds 80 mph plus.there are metal blades manufactured that do not shut down in 35 mph winds.most of the turbines being built out of pvc have no furling or any kind of shut down for any wind speed.
jeffmolly1 2 years ago
Most people shut down thier wind turbines at 35 mph. It does not matter what blade material you have you arent supposed to run a turbine at rediculous rpm. Sorry to see you learn the hard way.
dumbassification 2 years ago 3
to doug2877
point you make is good on the steel bracing,problem is when the pvc becomes brittle that flexing is going to cause them to snap off.one guy tried to tell me there is no latteral force whatsoever on the blades,he come up with graphs and charts and scientific figures and said i was lying.of course he was pushing layne ericksons video(WHICH HE NOW SELLS FOR $25.00)and wind blue.layne even admits that when the blades eventually break,he wouldnt want to be around.thanks for comment.
jeffmolly1 2 years ago
Just for the record, I mounted a set of 24 inch blades to close to its 4x4 mast just to see what would happen. Result when the pressure of the wind against the blade forced it in to the mast at around 30 mph wind I was shocked to see chunks of 4x4 flying around and my blades were fine I watched them hit over and over and they never broke. I always thought the steel running the length of the blade was a bad idea it leaves little room to flex in high wind. JUST TRYING TO HELP
doug2877 2 years ago 8
Pvc is right is more facilde change and become any kind of way, but in terms of its durability is very limited if not how long is that turbine was ESPONSE sun makes me make a few parts that should be avoided prior to this location, the PVC is lightweight and easy to handle can be installed pvc Cedula 40 to give a longer life.
Thanks your comment is very good.
meterjuarez 2 years ago 13
the purpose for this video is not to knock guys trying to save money,but to inform people of the dangers of using pvc for wind turbines.cities and counties are banning micro turbines because of these types of wind turbines,not because of the safe and quiet ones.neighbors are afraid to have these next to there yard for good reason.the guys selling plans for these pvc turbines say i am lying.i will post all comments ,good and bad,unlike the limited time offer guys. lets not loose free electric.
jeffmolly1 2 years ago
humbertini900
wooden blades are more solid and definetly more stable.people have been making wooden blades forever including airplane props.
jeffmolly1 2 years ago
do wooden blades they are more stable and solid.
humbertini900 2 years ago 11
i have seen this happen,this guy is trying to save you money and time and truly knows wind turbines,keep up the good work man.
turbineguy100 2 years ago 20
@turbineguy100 PVC is ridiculously brittle - ABS would be a better choice, but idk why anyone would put bolts through it and expect it to not crack @ those incredible RPM's and effective g forces. PVC makes a pretty nice mold material for carbon fiber or fiberglass blades though ;-)
Orionblade2003 7 months ago
THIS IS SO TRUE!!!
MultiGreenman 2 years ago 18