Seeing that my servo question in the electronics subforum doesn't get much notice, I'll ask further questions here...
I am in need of a simple DC motor (no longer servo) that needs to fit inside a metal tube that is 3cm long, and 14mm diameter.
I found this motor:
http://www.ebay.com/itm/DC1-5-6V-1230-M ... SwHnFV1~JF
The dimensions are perfect for my needs. The plan is this:
I will hook a pair of these motors to the Heng Long MFU board, specifically to the Left and Right motors (replacing the tank's main motors). The purpose of these motors is basically to make them act as a winch. Hence plugging them to the Left and Right motor plugs on the MFU. Instead of driving a tank, the motors will activate a winch so that the object can be raised or lowered.
Will it work? Will the board and/or motors burn? Are the motors compatible to the MFU (provided of course I do the necessary wiring)?
Will this work?
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Re: Will this work?
If you're going for a winch you're better off going for something like this..
https://www.ebay.co.uk/ulk/itm/141761120087
https://www.ebay.co.uk/ulk/itm/141761120087
remember...it's just a plastic tank... 
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wibblywobbly
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Re: Will this work?
I used an RX18 to power motors the way that you are describing, both off the motor drives and the turret rotation/elevation sockets. I even had three RX18's running inside the same tank. No magic smoke, and they were small running 3-6v motors.
This was running an SLU:
This was RX18's:
This was using a rotation motor to operate a dozer blade:
It can be done, just don't expect much pulling power from a small motor, they will expire rapidly if you overload them. Like Frank said, if you need a serious winch then its better to buy one built for the job. it will be geared to increase the load it can pull.
Rob
This was running an SLU:
This was RX18's:
This was using a rotation motor to operate a dozer blade:
It can be done, just don't expect much pulling power from a small motor, they will expire rapidly if you overload them. Like Frank said, if you need a serious winch then its better to buy one built for the job. it will be geared to increase the load it can pull.
Rob
Tiger 1 Late
Panther G
King Tiger
M36 B1
Panther G
King Tiger
M36 B1
Re: Will this work?
Frankie, that looks perfect.
Rob, wot you mean by SLU? Sound-and-Light Unit? Also, did using the three RX18 setup mean using three radio controls?
Because of the small cable I will be using, both motors (which will probably wot Frankie posted above) will be connected to just one of the motor sockets in the HL MFU. Because one will face left, the other face right, I reckon the shafts of each will spin in different directions (one clockwise, the other counter-clockwise) when I need them to spin at the same direction. Will reversing the connection to the other motor (i.e., instead of black and red, it's red and black) mean both will now spin towards the same direction? How will this affect the MFU? Too much load? The item that will be raised/lowered isn't too heavy. I haven't weighed it yet as it is not yet finished, but it freely swings on a pivot.
Rob, wot you mean by SLU? Sound-and-Light Unit? Also, did using the three RX18 setup mean using three radio controls?
Because of the small cable I will be using, both motors (which will probably wot Frankie posted above) will be connected to just one of the motor sockets in the HL MFU. Because one will face left, the other face right, I reckon the shafts of each will spin in different directions (one clockwise, the other counter-clockwise) when I need them to spin at the same direction. Will reversing the connection to the other motor (i.e., instead of black and red, it's red and black) mean both will now spin towards the same direction? How will this affect the MFU? Too much load? The item that will be raised/lowered isn't too heavy. I haven't weighed it yet as it is not yet finished, but it freely swings on a pivot.
Re: Will this work?
Cool project ATC, I think I have an idea on what you are up to. 
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wibblywobbly
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Re: Will this work?
Yes, I have an old Sound and Light Unit, the Tamiya clone, that I used.
The RX18 setup had three of them running off three tx's. I tried using a switch hooked up to the tx to enable me to switch between three different crystals but despite many attempts I couldn't get the signal to pass through, or the tx to recognise that a different crystal was now live. I kept getting the wrong crystal/rx activated so I had to give up in the end.
Connecting two 3v motors to one socket may give you very reduced power, even running small motors and only having one on each socket, I struggled to get the power I needed to operate the arm on the ARV, and those were geared as well.
You can of course make them rotate in different directions by reversing the polarity on one of them, but they may rotate at slightly different speeds, which may be important for how you intend using them. If it's a no load application then you should be ok, it would be a problem if there was a load on the motors, as that is what draws amps, and generates heat.
Rob
The RX18 setup had three of them running off three tx's. I tried using a switch hooked up to the tx to enable me to switch between three different crystals but despite many attempts I couldn't get the signal to pass through, or the tx to recognise that a different crystal was now live. I kept getting the wrong crystal/rx activated so I had to give up in the end.
Connecting two 3v motors to one socket may give you very reduced power, even running small motors and only having one on each socket, I struggled to get the power I needed to operate the arm on the ARV, and those were geared as well.
You can of course make them rotate in different directions by reversing the polarity on one of them, but they may rotate at slightly different speeds, which may be important for how you intend using them. If it's a no load application then you should be ok, it would be a problem if there was a load on the motors, as that is what draws amps, and generates heat.
Rob
Tiger 1 Late
Panther G
King Tiger
M36 B1
Panther G
King Tiger
M36 B1
Re: Will this work?
Thanks Rob. I reckon the load isn't much as the weight is mainly supported at the pivot. Well, at least I think and hope so hehehe
I'll be ordering those geared motors at eBay. Just now need to figure out the external power cable (which is is designed to be detachable) and getting a HL MFU.
DNAR: Hehehe hopefully done in these months including the month for the motors and HL MFU board to arrive.
I'll be ordering those geared motors at eBay. Just now need to figure out the external power cable (which is is designed to be detachable) and getting a HL MFU.
DNAR: Hehehe hopefully done in these months including the month for the motors and HL MFU board to arrive.
