Grandad's Postbag 190214 Copper Triple pipe CO2 capsule boiler 2 days ago   06:52

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Grandad's Postbag 190214 Copper Tube and 9 tooth pinion Gears

I am not endorsing these products and I get no income from the sellers so I suggest you do your own search and find the product that suits your purposes.

AliExpress
Uxcell 10Pcs 9/11 Teeth 092/112A Plastic Shaft Gear 2mm Hole Diameter 5 x 5.5/5 x 6.5mm Toy Accessories for DIY Car Robot Motor
Properties: Number of Teeth 9 Teeth; Hole Diameter 2mm
Cost me 99p

eBay
new 4mm/5mm/6mm/8mm/10mm copper pipe/tube/plumbing/microbore/water/gas/diy/diy
copper microbore coils: 4mm x 1 metre coil
Cost me £3.35

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Pop Pop boats https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK

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Comments 27 Comments

anthony belcher
Awesome
Doc Ink
if you're determined to fix that toy you may need to replace all the gears with matched pitch sets but finding the exact size may be difficult... dremel has a hobby 3d printer for around $600US...lol...just think of all the propellers you could print
Elnufo
get well soon :-)
Daniel thorpe
Get well soon!!!
RC Lover san
I hope you'll find the right gear, soon or later... in the meanwhile, get well soon!
Telboy2002
do you still have original damaged gear?
kae4466
oh gear. :) ive been watching some videos on how to make gears on youtube .:)
Home Dronen
That's so unfortunate, I hope you will be able to achieve your goals and.
alarme et bricolage
You try making worm gearmotor with clutch mecanism for make sure is dosen't damage the Gears
Peter Brown
Hope you feel better soon, Grandad. Hot lemon, honey & whiskey is good !
Mike Flight
Its a pity you could not move the larger gear closer or vice versa. Other than that you could try and replace the larger gear.
I can tell your still not feeling well and I really hope you start feeling better soon. Remember to keep the chin up. :D
Joey the bmx kid
hey
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Triple pipe CO2 capsule boiler Grandad's Postbag 190214 Copper 2 days ago   04:56

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Triple pipe CO2 capsule boiler pop pop boat P2
Triple pipe CO2 capsule boiler pop pop boat P1 https://ai-tube.com/videoai/IGsNJ4_4DyN
Video inspired by one of the boilers on Magnus Ericsson's pop pop boats

Magnus Ericsson
- Build a hull for a pop pop boat, or any kind of small model boat
https://ai-tube.com/videoai/Hc7aKaARXVb
- How to make a pop-pop or put-put boatmotor with silicone, no welding https://ai-tube.com/videoai/ROD1OmmjvD8

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You can help keep my channels running with a dollar for coffee and cakes at https://www.patreon.com/GrandadIsAnOldMan
If you don't want to use Patreon you can buy me a coffee here instead http://ko-fi.com/grandadisanoldman
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Usual Components
-
Brass & Aluminium tube
Silicon tube
Empty CO2 capsule
Solid Fuel from camping stove
Candle or tea light probably won't be hot enough
Styrofoam
Solder
Soldering iron

Pop Pop boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Toy Boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB24vUS9E8zkSgjZysEL00zr
Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 https://ai-tube.com/videoai/4Gmujsvg6rH
Daryl Foster's last pop pop boat video https://ai-tube.com/videoai/1lLIUsokX9t
Here is the link to DaveHax tutorial which I found excellent https://ai-tube.com/videoai/0xv9Xgn8t14
sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here https://ai-tube.com/videoai/2MS0zwehNkZ
Here is a good video on tweaking the speed of these boats https://ai-tube.com/videoai/C2foFX79r4t
This link that explains the general annealing process without getting too technical http://steamshed.com/annealing%20process.html and here is a YouTube video on the subject by George Goehl https://ai-tube.com/videoai/3wFm11ym8ZN

Some history on Pop Pop boats you look at this Wikipedia link on the subject http://en.wikipedia.org/wiki/Pop_pop_boat they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.

HOW DOES IT WORK?
Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. When the steam cools it condenses and contracts so the external pressure pushes the water back up the tube.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.

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