apparently the grease they use gums up the switches after a time causing the switch not to work. a simple cleaning and use of dielectric grease prevents that from happening.
In my video: a servotester In an RC airplane: the transmitter has a switch and the retracts are plugged into a receiver which receives the command when the pilot flips the switch.
Hey Friend I am recently working on making DIY servoless retract at home and had already disassembled a 9g servo. I was stuck at what to do with the potentiometer.Your video helped me a lot!!!!!Do you think that if we will use a servo circuit with retracts,instead of retract own circuit,will it work?????? PLEASE REPLY ME I'M STUCK:)
Thank you for your message, glad you found it helpful :) What exactly are you trying to do? You are trying to use the retract mechanics with the servo electronics? That sounds weird. I assume you want to build a servoless retract out of a servo. The problem with that is the servo electronics rely on the potentiometer. If you mechanically disconnect the pot from your DIY retract mechanism, then effectively you have turned your servo electronics into a speed controller (ESC) - probably not what you want. You need end position switches and diodes to stop the motor from rotating at the end and only be able to rotate into the other direction, out of the end stop. There is one electronic device that makes this a bit easier: www.cti-modellbau.de/-154.html?language=de If you want to DIY the limit switches, this might help: electronics.stackexchange.com/questions/453591/motor-with-two-endstops-using-limit-switches
@@YensR OH....really thanks by the way for the reply:)I was waiting for it.I am trying to build a retract circuit board as i have ordered the gear motor which is used in the retracts.So now i am trying to build a circuit to control the retract movement.So I was asking you that for the circuit,can I use a servo circuit for it??????And also I opened the link and I knew what is landing gear sequencer and also how to use it.But how to use the ESC limit switch also I don't know how will I use it???????Also I checked for the endswitch for the retracts.But as you said in the video an shown,there are smd endswitch used in them.I saw for it on websites but didn't find"smd" endswitch.But also will these endswitch work?????I HOPE FOR A REPLY AGAIN:)
@@rcplanetech8095 The link to CTI is not a landing gear sequencer! It serves as a better alternative to the limit switch principle I tried to explain. Hopefully google translate gives you an idea how it works. You don't need to use SMD end switches, they are tiny and therefore difficult to work with. Electromechanical micro/mini switches work best for your purpose. This is the image: i.stack.imgur.com/kSUVF.jpg However, the description of diodes used in that link is not very clear, but for that you can see here: electronics.stackexchange.com/questions/293726/limit-switch-on-reversing-motor With these switches and diodes, you can use a standard servo electronic. In one position, the motor will rotate in one direction until it hits the limit switch. Then it will switch off, unless you reverse direction. In that case, the diode will circumvent the limit switch and the motor runs in the other direction until it hits the other endstop. There are other ways to switch the motor from left to right, but servo electronics are very cheap, so if you already have that, you can use it. You'll have to read around a bit for yourself, there's lots of information out there. Why don't you upload a video, so people see what you are working on and give help? Because there are dozens of ways to solve this and it's not clear which is the best one for you.
Hi, nice video, do you think I could use the motor control board for a copper coil, (instead of the motor )that I need to control a magnet and also switch the current? Like a electromagnet pushing a magnet.
If you want to control a voice coil, you can use this, but it would be easier to buy a cheap ESC (electronic speed control) for brushed motors (not brushless) and use that to adjust the voltage and hence current in the coil. There are very simple ones on ebay.
Great video. I have a faulty retract and now I know how it works I may be able to repair it. Thank you ..
Happy I was able to help (hopefully). Thank you for your comment and good luck! :)
apparently the grease they use gums up the switches after a time causing the switch not to work. a simple cleaning and use of dielectric grease prevents that from happening.
Thank you for the info, hopefully that will help some people out there!
nice teardown! thank you!
Thank you Stan!
What activates the landing gear? Sorry I'm a newbie.
In my video: a servotester
In an RC airplane: the transmitter has a switch and the retracts are plugged into a receiver which receives the command when the pilot flips the switch.
@@YensR thanks very much.
If you were using two of them would they normally hook up to the gear servo channel on the receiver via a "Y" lead?
That's exactly right!
@@YensR Thank you.
Hey Friend I am recently working on making DIY servoless retract at home and had already disassembled a 9g servo.
I was stuck at what to do with the potentiometer.Your video helped me a lot!!!!!Do you think that if we will use a servo circuit with retracts,instead of retract own circuit,will it work??????
PLEASE REPLY ME I'M STUCK:)
Thank you for your message, glad you found it helpful :)
What exactly are you trying to do?
You are trying to use the retract mechanics with the servo electronics?
That sounds weird. I assume you want to build a servoless retract out of a servo. The problem with that is the servo electronics rely on the potentiometer. If you mechanically disconnect the pot from your DIY retract mechanism, then effectively you have turned your servo electronics into a speed controller (ESC) - probably not what you want.
You need end position switches and diodes to stop the motor from rotating at the end and only be able to rotate into the other direction, out of the end stop.
There is one electronic device that makes this a bit easier: www.cti-modellbau.de/-154.html?language=de
If you want to DIY the limit switches, this might help:
electronics.stackexchange.com/questions/453591/motor-with-two-endstops-using-limit-switches
@@YensR OH....really thanks by the way for the reply:)I was waiting for it.I am trying to build a retract circuit board as i have ordered the gear motor which is used in the retracts.So now i am trying to build a circuit to control the retract movement.So I was asking you that for the circuit,can I use a servo circuit for it??????And also I opened the link and I knew what is landing gear sequencer and also how to use it.But how to use the ESC limit switch also I don't know how will I use it???????Also I checked for the endswitch for the retracts.But as you said in the video an shown,there are smd endswitch used in them.I saw for it on websites but didn't find"smd" endswitch.But also will these endswitch work?????I HOPE FOR A REPLY AGAIN:)
@@rcplanetech8095 The link to CTI is not a landing gear sequencer! It serves as a better alternative to the limit switch principle I tried to explain. Hopefully google translate gives you an idea how it works.
You don't need to use SMD end switches, they are tiny and therefore difficult to work with. Electromechanical micro/mini switches work best for your purpose.
This is the image:
i.stack.imgur.com/kSUVF.jpg
However, the description of diodes used in that link is not very clear, but for that you can see here:
electronics.stackexchange.com/questions/293726/limit-switch-on-reversing-motor
With these switches and diodes, you can use a standard servo electronic. In one position, the motor will rotate in one direction until it hits the limit switch. Then it will switch off, unless you reverse direction. In that case, the diode will circumvent the limit switch and the motor runs in the other direction until it hits the other endstop.
There are other ways to switch the motor from left to right, but servo electronics are very cheap, so if you already have that, you can use it.
You'll have to read around a bit for yourself, there's lots of information out there. Why don't you upload a video, so people see what you are working on and give help?
Because there are dozens of ways to solve this and it's not clear which is the best one for you.
@@rcplanetech8095 Did my reply help you? Let me know where/if you are stuck.
Hi, nice video, do you think I could use the motor control board for a copper coil, (instead of the motor )that I need to control a magnet and also switch the current? Like a electromagnet pushing a magnet.
If you want to control a voice coil, you can use this, but it would be easier to buy a cheap ESC (electronic speed control) for brushed motors (not brushless) and use that to adjust the voltage and hence current in the coil.
There are very simple ones on ebay.
Try to talk small and show more .... may be some people dont like to bagara bagara.... over all your video is very informative. Thanks
I'm not quite sure what you mean. What would you have liked to see and what should I not have said? Also, what is "bagara"?
I wouldn't worry about "bagara" or "talk small/show more" in this case. Your video is just about perfect for a teardown IMO. Thanks! ;)
Thank you Kramer, I'm try to learn from feedback - I don't speak to the camera often, so it's all a bit awkward ;)