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PAST WINNERS
Push button stooge
Page 1 of 2
Page 1 of 2 • 1, 2
Push button stooge
Having perused some of the threads regarding the solo launching mechanisms(stooge), I got a harebrained idea to try and craft one of the electronic type. I was able to locate some relatively inexpensive components on Amazon for the project and it came in at just under $30. Not counting the scrap pieces I had laying around that were used for some fine tuning.
Here are the essentials:
![Push button stooge Scroog10](https://i.servimg.com/u/f87/20/01/32/40/scroog10.jpg)
Engineering was not too difficult as I figured I'd only need 1/2" throw (+/-). The solenoid arm, such as it is, is loose and falls out, so I went with the "bellcrank" to provide a little leverage and extra throw and to contain the arm in the body of the solenoid. It will ultimately have a removable enclosure for the components. Here it is in the closed position:
![Push button stooge Scroog11](https://i.servimg.com/u/f87/20/01/32/40/scroog11.jpg)
And open:
![Push button stooge Scroog12](https://i.servimg.com/u/f87/20/01/32/40/scroog12.jpg)
All this to avoid having a string laying at my feet and the potential entangling whilst spinning in circles.
Anxiously awaiting some decent weather to try out my new airplane with this set up.
Here are the essentials:
![Push button stooge Scroog10](https://i.servimg.com/u/f87/20/01/32/40/scroog10.jpg)
Engineering was not too difficult as I figured I'd only need 1/2" throw (+/-). The solenoid arm, such as it is, is loose and falls out, so I went with the "bellcrank" to provide a little leverage and extra throw and to contain the arm in the body of the solenoid. It will ultimately have a removable enclosure for the components. Here it is in the closed position:
![Push button stooge Scroog11](https://i.servimg.com/u/f87/20/01/32/40/scroog11.jpg)
And open:
![Push button stooge Scroog12](https://i.servimg.com/u/f87/20/01/32/40/scroog12.jpg)
All this to avoid having a string laying at my feet and the potential entangling whilst spinning in circles.
Anxiously awaiting some decent weather to try out my new airplane with this set up.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
I like it!
Key chain transmitter, micro chip receiver, a battery and solenoid and some odds and ends.
Could start a trend.
Thanks for sharing.....Got Amazon numbers and save me some time.....?
Bob
Key chain transmitter, micro chip receiver, a battery and solenoid and some odds and ends.
Could start a trend.
Thanks for sharing.....Got Amazon numbers and save me some time.....?
Bob
rsv1cox- Top Poster
Posts : 10958
Join date : 2014-08-18
Location : West Virginia
Re: Push button stooge
That's pretty slick. One of my flying buddies at our club made a fob actuated stooge too, and it works well. I have not seen the inside of his box, but I suspect it looks a lot like yours.
When you signal it, how long does the transistor stay switched on before it turns back off? Let us know how it works in the field when you get a chance to test it.
You may want a light spring to help hold it closed so it doesn't vibrate open. I wouldn't trust just the tension of the plane pulling on the pin to secure it from possibly moving from engine vibration.
Rusty
When you signal it, how long does the transistor stay switched on before it turns back off? Let us know how it works in the field when you get a chance to test it.
You may want a light spring to help hold it closed so it doesn't vibrate open. I wouldn't trust just the tension of the plane pulling on the pin to secure it from possibly moving from engine vibration.
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Push button stooge
Bob:
Here is what I ordered. There are many similar devices. I picked these by just guessing. Luckily, it worked.
https://www.amazon.com/gp/product/B0105UOV1I/ref=ppx_yo_dt_b_asin_title_o00__o00_s01?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07H4VK882/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1
Rusty:
Looks to be about a 3-4 second impulse. Roger on the spring. I was going to incorporate that but didn't have one light enough. Will have to wait 'til I get to the hardware store.
Here is what I ordered. There are many similar devices. I picked these by just guessing. Luckily, it worked.
https://www.amazon.com/gp/product/B0105UOV1I/ref=ppx_yo_dt_b_asin_title_o00__o00_s01?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07H4VK882/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1
Rusty:
Looks to be about a 3-4 second impulse. Roger on the spring. I was going to incorporate that but didn't have one light enough. Will have to wait 'til I get to the hardware store.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
Now that is a great idea! Good job.
NEW222- Top Poster
- Posts : 3896
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Push button stooge
Ingenious ![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
Levent Suberk- Diamond Member
- Posts : 2235
Join date : 2017-12-24
Location : Türkiye
Re: Push button stooge
That is Cool , Nothing like having that string wrapped around your feet getting tighter as you turn
I got a stooge for holding the tail section STAB that i haven't tried yet ,, Next time out this spring !!
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
![Cool](https://2img.net/i/fa/i/smiles/icon_cool.gif)
getback- Top Poster
Posts : 10345
Join date : 2013-01-18
Age : 67
Location : julian , NC
Re: Push button stooge
Watch out!! The FAA might call your c/l model an unlicensed UAS.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: Push button stooge
As long as the stooge stays grounded, you can't call it a UAS.
Now, if the plane unhooked due to a on-board radio/hook...
Now, if the plane unhooked due to a on-board radio/hook...
![Laughing](https://2img.net/i/fa/i/smiles/icon_lol.gif)
944_Jim- Diamond Member
Posts : 2014
Join date : 2017-02-08
Age : 59
Location : NE MS
Re: Push button stooge
RknRusty wrote:
You may want a light spring to help hold it closed so it doesn't vibrate open. I wouldn't trust just the tension of the plane pulling on the pin to secure it from possibly moving from engine vibration.
Rusty
There are similar solenoids available with a return spring built in. The one being used looks like it has a small ring or clip on the plunger. He may be able to install a light return spring under there.
Oldenginerod- Top Poster
- Posts : 4003
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Push button stooge
Oldenginerod wrote:RknRusty wrote:
You may want a light spring to help hold it closed so it doesn't vibrate open. I wouldn't trust just the tension of the plane pulling on the pin to secure it from possibly moving from engine vibration.
Rusty
There are similar solenoids available with a return spring built in. The one being used looks like it has a small ring or clip on the plunger. He may be able to install a light return spring under there.
As I was going on the cheap with this project, I passed on the spring loaded options. Not that they're that much more expensive but I was in a "low as you can go" mode. As the plunger is not captive, I opted for the bellcrank to contain it and will rig a spring in some fashion when I find one. I'd opt for a "pre-sprung" if I had it to do over. My main engineering concern was compatible electronics and 9V battery functionality. I lucked out in that regard and was giddy with the results. All that said, I look forward to other's improvement of the mechanics. This was a shot in the dark design in as simple a format as I could imagine. Rigged as it is, I think it'll work after some tweeking.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
Slick049 wrote:Bob:
Here is what I ordered. There are many similar devices. I picked these by just guessing. Luckily, it worked.
https://www.amazon.com/gp/product/B0105UOV1I/ref=ppx_yo_dt_b_asin_title_o00__o00_s01?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07H4VK882/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1
Rusty:
Looks to be about a 3-4 second impulse. Roger on the spring. I was going to incorporate that but didn't have one light enough. Will have to wait 'til I get to the hardware store.
Thanks. Amazon, almost like having a Radio Shack in your living room.
I miss R/S, I used to prowl that store while my wife shopped clothes.....
rsv1cox- Top Poster
Posts : 10958
Join date : 2014-08-18
Location : West Virginia
Re: Push button stooge
rsv1cox wrote:Slick049 wrote:Bob:
I miss R/S, I used to prowl that store while my wife shopped clothes.....
I remember having a “battery a Month” card. Used to replenish my D Size starter batteries. Yup, definitely miss browsing that store!
Marleysky- Top Poster
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: Push button stooge
"UAS" = Unmanned Aircraft SYSTEMS All it would take to get the fed SWAT team out would be just one creative and abusive bureaucrat to call the whole thing a "System".
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: Push button stooge
So, I went this morning and picked up a couple of "return" springs. The lightest they had. Got home and tested them and they proved too strong. Replaced the battery with a new one and got a little more pull out of the solenoid, but not enough. So I got to figuring that an increase in voltage would produce a stronger pull and considered doubling up the 9Vs. Got to reading up on the remote controller and it allows up to 36V, so would be safe there. Don't want to burn up the electronics if I can help it. Anyway, went on Amazon looking for a couple of 9V battery holders and low and behold, ran across some 12V (A23). Look to be a little fatter and maybe a little shorter than AAs. Admittedly, I had no clue they even made them. Come to find out they are very common for doorbells, garage door openers and such. Who knew?
So, the plan is, once delivered, is to gang up a couple of A23s for 24V and see what happens to the strength of pull of the solenoid. And then go to three if necessary. I'm trying to keep the stooge as compact as possible. Don't want to be lugging around a cinder block if I can help it.
And yea, Radio Shack. Ditto on what everybody else said.
So, the plan is, once delivered, is to gang up a couple of A23s for 24V and see what happens to the strength of pull of the solenoid. And then go to three if necessary. I'm trying to keep the stooge as compact as possible. Don't want to be lugging around a cinder block if I can help it.
And yea, Radio Shack. Ditto on what everybody else said.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
I do t think it's a matter of voltage, but of available max current.
Two 9-volt batteries in parallel still won't be the amps you need for pulling the release pin against the side-load of a stooged model.
Your bellcrank offers travel over pull. You may be able to flip it for pull over travel, it should take only relocating a few pieces.
The alarm/security/ light battery will give you the amps you need, and still have plenty left over for the receiver. Use a motorcycle charger from Hirrunle Fright to top off the stooge battery from time to time.
I'm right behind you on this. How are you ballasting your stiige platform? Mine is held down with a cinder block.
Two 9-volt batteries in parallel still won't be the amps you need for pulling the release pin against the side-load of a stooged model.
Your bellcrank offers travel over pull. You may be able to flip it for pull over travel, it should take only relocating a few pieces.
The alarm/security/ light battery will give you the amps you need, and still have plenty left over for the receiver. Use a motorcycle charger from Hirrunle Fright to top off the stooge battery from time to time.
I'm right behind you on this. How are you ballasting your stiige platform? Mine is held down with a cinder block.
944_Jim- Diamond Member
Posts : 2014
Join date : 2017-02-08
Age : 59
Location : NE MS
Re: Push button stooge
I'll try flipping the bellcrank. Have it half way disassembled as it is. Moving stuff around won't be an issue. Goal is to keep it small. Will see what the A23s will do and upgrade to a bigger battery if necessary. Initial plan is to mount it to a piece of Masonite or peg board, say 2' X 3'. Do the landing gear side chock thing. Will peg it to the ground or set a block on it if needed. Will be flying 1/2A stuff w/.049s so I'm not too worried about it being overpowered and end up being drug around. Although, that would be a sight.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
Keep 9 Vdc... make lever fulcrum very close to 3 or 4 to 1 mechanical advantage... Narrow the guide to accommodate 2 times string width... max throw under 1/8th inch....no spring needed
my adjustments for a very cool design
my adjustments for a very cool design
fredvon4- Top Poster
Posts : 4008
Join date : 2011-08-26
Age : 69
Location : Lampasas Texas
Re: Push button stooge
fredvon4 wrote:Keep 9 Vdc... make lever fulcrum very close to 3 or 4 to 1 mechanical advantage... Narrow the guide to accommodate 2 times string width... max throw under 1/8th inch....no spring needed
my adjustments for a very cool design
I think the 3-4 to one advantage is an excellent idea. The narrower guide makes sense. 1/2" is a bit much/unnecessary.
ON TO PLAN uh L? Guess I should have kept track of the changes.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
I like your idea for the remote. I'm going to try a different design using the solenoid to trip a sear allowing a spring loaded pin to retract, releasing the plane. Amazon here I come!
coxaddict- Gold Member
- Posts : 429
Join date : 2013-01-27
Location : north shore oahu, Hawaii
Re: Push button stooge
coxaddict wrote:I like your idea for the remote. I'm going to try a different design using the solenoid to trip a sear allowing a spring loaded pin to retract, releasing the plane. Amazon here I come!
I think you're on to something!
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
Here are some details of my design. Made use, mostly, of what I had laying around. Here is the pivot for the bellcrank. A short piece of K&S tubing with a washer on either end with a bolt to hold it all.
![Push button stooge Stooge10](https://i.servimg.com/u/f87/20/01/32/40/stooge10.jpg)
![Push button stooge Stooge11](https://i.servimg.com/u/f87/20/01/32/40/stooge11.jpg)
If I retain the bellcrank option (see "sear" system in previous comment), I will get a longer piece and glue it in the board as this one has gotten wallered(sp?) out, what with all the testing.
The wire guide is a long shank rivet head, glued into the angle piece, with a lock nut glued on for the overkill that's in it.
![Push button stooge Stooge12](https://i.servimg.com/u/f87/20/01/32/40/stooge12.jpg)
![Push button stooge Stooge13](https://i.servimg.com/u/f87/20/01/32/40/stooge13.jpg)
As all this is being concocted, I have just finished this Brodak trainer (Baby steps. It was long ago since I last flew.) (Or built anything to fly)
![Push button stooge Stooge14](https://i.servimg.com/u/f87/20/01/32/40/stooge14.jpg)
And have just started the P-51.
![Push button stooge Stooge15](https://i.servimg.com/u/f87/20/01/32/40/stooge15.jpg)
A Lil Satan is third on the build list.
Just waiting for a warm, calm day.
![Push button stooge Stooge10](https://i.servimg.com/u/f87/20/01/32/40/stooge10.jpg)
![Push button stooge Stooge11](https://i.servimg.com/u/f87/20/01/32/40/stooge11.jpg)
If I retain the bellcrank option (see "sear" system in previous comment), I will get a longer piece and glue it in the board as this one has gotten wallered(sp?) out, what with all the testing.
The wire guide is a long shank rivet head, glued into the angle piece, with a lock nut glued on for the overkill that's in it.
![Push button stooge Stooge12](https://i.servimg.com/u/f87/20/01/32/40/stooge12.jpg)
![Push button stooge Stooge13](https://i.servimg.com/u/f87/20/01/32/40/stooge13.jpg)
As all this is being concocted, I have just finished this Brodak trainer (Baby steps. It was long ago since I last flew.) (Or built anything to fly)
![Push button stooge Stooge14](https://i.servimg.com/u/f87/20/01/32/40/stooge14.jpg)
And have just started the P-51.
![Push button stooge Stooge15](https://i.servimg.com/u/f87/20/01/32/40/stooge15.jpg)
A Lil Satan is third on the build list.
Just waiting for a warm, calm day.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
Re: Push button stooge
Get a piece of music wire and bend a hairpin to go around the bellcrank pivot, then spring around the bellcrank and a screwanywhere that gets you enough spring back.
944_Jim- Diamond Member
Posts : 2014
Join date : 2017-02-08
Age : 59
Location : NE MS
Re: Push button stooge
Those A23 cells are pretty weak. They only have a 55mAh capacity down to 6V. I doubt it will pull in the solenoid.
The 9V battrry is about 600mAh and can supply a max of 500mA before the voltage sags. You may get a few actuations out of it before it gets too weak.
It’s all about ESR or equivalent series resistance. How much current can the battery supply and for how long (mAh).
A 3S1P 1000mAh lipo battery pack would be far superior to the above two batteries. It requires a special charger and voltage monitoring that most modelers have.
The other option is to use a boost regulator with 4 D batteries. It will take 2-24V and convert up to 28V DC at 2A of current. It has a potentiometer to adjust the output voltage. This way with the 2A of regulated current a solenoid with a return spring can be used.
Can find the boost converters on Amazon or eBay. Most ship from China and take a few weeks to get.
The 9V battrry is about 600mAh and can supply a max of 500mA before the voltage sags. You may get a few actuations out of it before it gets too weak.
It’s all about ESR or equivalent series resistance. How much current can the battery supply and for how long (mAh).
A 3S1P 1000mAh lipo battery pack would be far superior to the above two batteries. It requires a special charger and voltage monitoring that most modelers have.
The other option is to use a boost regulator with 4 D batteries. It will take 2-24V and convert up to 28V DC at 2A of current. It has a potentiometer to adjust the output voltage. This way with the 2A of regulated current a solenoid with a return spring can be used.
Can find the boost converters on Amazon or eBay. Most ship from China and take a few weeks to get.
Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
Age : 49
Location : Neenah, WI
Re: Push button stooge
So. Took Jason_WI's comments to heart. The little A23s are not capable. Went looking for the smallest(size) 12V I could find. Ran across this:
![Push button stooge Stooge16](https://i.servimg.com/u/f87/20/01/32/40/stooge16.jpg)
Specs say battery puts out 3A. The remote circuit can take up to 5A, which was my main worry. The solenoid isn't bothered by much of anything, within reason. Early testing proves it to be more than adequate. Snatches the plunger out of my fingers. Makes a very audible click. More than enough pull.
Serendipitously, the battery fits perfectly in my field box.
![Push button stooge Stooge17](https://i.servimg.com/u/f87/20/01/32/40/stooge17.jpg)
And about that going cheap part on the front end? Well, game over. Besides the battery being free(which would cost $20-$30), I ordered one of those Hobbico power panels. Basically doubled the initial investment. Kissin' $70 total right now. Oh well. I've wasted more money on a lot less. Upside is I'll break even on the weight thing as I'll rid myself of the glow plug battery array/box.
Now back to re-engineering the setup. Looks like I'll go with a spring loaded plunger and go straight in without the need for the bellcrank. Simpler is gooder.
![Push button stooge Stooge16](https://i.servimg.com/u/f87/20/01/32/40/stooge16.jpg)
Specs say battery puts out 3A. The remote circuit can take up to 5A, which was my main worry. The solenoid isn't bothered by much of anything, within reason. Early testing proves it to be more than adequate. Snatches the plunger out of my fingers. Makes a very audible click. More than enough pull.
Serendipitously, the battery fits perfectly in my field box.
![Push button stooge Stooge17](https://i.servimg.com/u/f87/20/01/32/40/stooge17.jpg)
And about that going cheap part on the front end? Well, game over. Besides the battery being free(which would cost $20-$30), I ordered one of those Hobbico power panels. Basically doubled the initial investment. Kissin' $70 total right now. Oh well. I've wasted more money on a lot less. Upside is I'll break even on the weight thing as I'll rid myself of the glow plug battery array/box.
Now back to re-engineering the setup. Looks like I'll go with a spring loaded plunger and go straight in without the need for the bellcrank. Simpler is gooder.
Slick049- Moderate Poster
- Posts : 25
Join date : 2018-12-26
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![-](https://2img.net/i/empty.gif)
» Pushrod for PT19
» What about the "Thanks" button
» Was the "LIKE"button yesterday an experiment?
» What happened to the "Thanks" button?
» Les Stooge!!!!
» What about the "Thanks" button
» Was the "LIKE"button yesterday an experiment?
» What happened to the "Thanks" button?
» Les Stooge!!!!
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