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Felix Thoma
เข้าร่วมเมื่อ 13 พ.ย. 2013
On this channel I share some of my interests and hobbies, which include among other things: Wind-turbine building, radio controlled model glider building and flying and engineering.
Pilot QB 1400 glider
This airframe was given to me by a friend. The horizontal stabilizer needed re-building and I also manufactured and fitted some bulkheads. Additionally, I made a new nose-block into which I fitted around 15grams of lead weight.
มุมมอง: 32
วีดีโอ
Bearing removal tool part 2
มุมมอง 62หลายเดือนก่อน
This is the second part illustrating my bearing-removal-tool.
Bearing removal tool part 1
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I Built a special tool for the purpose of removing a ball-bearing from a model aircraft engine's crank-case.
Lawn Mower Complete
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I disassembled and repaired the petrol-lawnmower-engine that was presented in part one of this series. Subsequently, I reconditioned a used chassis onto which I mounted the engine.
Strimmer repair
มุมมอง 342 หลายเดือนก่อน
The issue with this machine was that it would instantly trip a circuit-breaker in the DB board when the power to the motor was turned on. First, I made sure that the motor was not at fault by visually checking the windings and commutator. Then I checked if the motor would run of a 12volt battery charger, which it did. This gave me a strong indication that the bridge rectifier was at fault. A ch...
Lawnmower engine running after repair.
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Lawnmower engine running after repair.
Lawnmower- engine in parts
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I completely disassembled this lawnmower engine. Then cleaned everything and put it back together. I managed to rectify the issues that prevented it from running well.
Petrol Lawnmover engine repair.
มุมมอง 515 หลายเดือนก่อน
I bought a used lawnmower with a good chassis which had a malfunctioning petrol engine. I knew about the malfunctioning engine at the time......Subsequently I mounted the electric motor from my old rusted chassis onto the chassis I bought. Now I am attempting to repair the petrol engine :-)
Piston Ring, Custom made, replacement, OS FS 40 part 5
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Piston Ring, Custom made, replacement, OS FS 40 part 5
Piston Ring, Custom made, replacement, OS FS 40 part 4
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Piston Ring, Custom made, replacement, OS FS 40 part 4
Piston Ring, Custom made, replacement, OS FS 40 part 3
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Piston Ring, Custom made, replacement, OS FS 40 part 3
Piston Ring, Custom made, replacement, OS FS 40 part2
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Piston Ring, Custom made, replacement, OS FS 40 part2
Piston Ring, Custom made, replacement, OS FS 40
มุมมอง 152ปีที่แล้ว
Piston Ring, Custom made, replacement, OS FS 40
Very nice work sir
I had an OS-120 4-stroke that had seized up due to being stored for years. Caster Oil must have solidified around the piston. I let it go cheap because I thought it could not be restored. 😔
Wow, that is a nice big engine. When an engine has not been running for a long time and as a result oil solidified in it, it appears that boiling the engine in a pot of hot water works to soften the oil. This idea was given to me by a friend😀 Once the engine has been immersed in water, it is of course important to dis-assemble the engine fairly promptly and then dry and oil the various components to prevent corrosion.
Отлично получилось 👍
Thank you.
Отлично работает 👍
Heat up the conrod before bending straight.
Thank you, that might be a good idea 👍
Nice model. Missing it's under wing struts though.😊
Thank you. Your are right about the Struts. I should put them on again😀
@@felixthoma-miniature-machining 😁👍🏻
Does the engine just exhaust into the cowling?
The exhaust is ducted into a manifold which takes it out the cowling, then directs it rearwards into a tuned pipe (muffler / silencer)
Very nice work. Beautiful little plane
Thank you 😀
What type of spring did you use?
No spring is used here. The 6mm pin / shaft which allows the tail-vane to swivel is mounted at an angle sideways and also at an angle rearwards. This causes a situation through which the weight of the tail-vane always wants to swivel the tail-vaine into it"s neutral / best running position. So essentially the weight of the tail-vane performs the function of a spring.
Good job !
Thank you
Hai
enespañol por favor quiero aprender
I like what you are doing here!..Good luck from America!
Thank you
Thank you
Brilliant.
Thank you
Hi there. I really like your way of holding the magnets in place using this plastic disc. Most alternator videos I've seen they use epoxy resin instead which leaves no room for error and very difficult to change the magnet rotors once you cast the rotors. I was wondering how to go about changing the magnets on these plastic rotors you are using. How about making a small hole on the center place where the magnets are going to be inserted, similar to the holes you already have in place next to where the magnets are inserted now. ? Then if you need to change a few magnets, you could flip the disk around and tap the particular magnet from the opposite side with a piece of metal, kind of like a rebar, and have it be removed from the plastic disk without damaging the disk. Does adding these extra holes on the cavity where each magnet will be installed weakens the magnetic field at all ?? Your response is greatly appreciated.
From a performance point of view it should not cause any changes. The issue with holes as described, may rather be that it offers water and moisture a point of entry, which in the long run might make the magnets more prone to corrotion / rust. It might be more pragmatic to very (very) slightly increase the diameter of the holes in which the magnets are positioned so that they remain on the steel disk when the plastic cover is removed.
💪 Promo'SM
Like...chic.
Just found your channel and Subscribe. Nice work
The centre drill WILL NOT prevent the drill from running off centre. It Will start the drill on centre, that's all.
What are they for?
Nice
This seems a great design and a very clear explation of how to make one with a little bit more research. Many thanks
On ne voit pas sur la vidéo si ça fonctionne
*PromoSM*
Boa noite, Qual a tensão e amperes fornecidos pelo aerogeradore ?🇧🇷
Thank you
Is this axial flux generator? If so it can run freely bcos there is no effect of magnet in Core. Why dont you put this in a vertical structure like A structure? This is very amazing.
Second to comment I like home made turbine make detail videos
I love your creation and would love to build my own - how did you modify your alternator? Is it a car alternator?
It is a custom-built alternator. More details can be seen in the other video-clips on this channel.
GOOD JOB ! ;)
Super job !!! :)
The turbine works fine !!! :) Good job !!! Bravo ! :)
😉👍
😉👍
The turbine works fine ! Bravo ! :)
😉👍
Good job ! :)
👍
Good job ! ;)
Good job ! :)
GOOD JOB !!! :) Regarts Paul P.
Hi. Nice wind turbine ! :) We are waiting for tests ... ;) Regards - Paul P. 👍+SUB ! 😉
Thank you☺
Very interesting. Well done.
Very interesting build. Just watched your generator tear down video and believe you have some interesting ideas in there.
are you gluing with epoxi? I wonder how much would endure into outside, running 24/7
Amazing job
My website address is: "miniaturemachining.webs.com"
My website address is: "miniaturemachining.webs.com"
Did you use a commercial slip ring?
Get rid of the slip ring, get a 90 degrees gear box ⚙️ and mount the generator shaft vertically
A slipring is not used. The electrical wires are fed down the tube. They can then obviously twist. Experientially (over msny years), the turbine is moved left/right into the oncomming wind about equally and thus the twisting/untwisting of the wires does not present any issues.