| Author |
Message |
Maldwyn Parsons
Unregistered guest
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| Posted on Monday, September 5, 2005 - 6:20 pm: |
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I am interested in your motor (Model Motor size B 1400-021) but before I purchase could you tell me how I can slow the motor down, what components I need, and what the cost is.
Thank you |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 68
Registered: 10-2004
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| Posted on Monday, September 5, 2005 - 9:22 pm: |
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Hi
A motor can be slowed down in one of two ways:
a) Operating at a voltage lower than its nominal operating voltage
b) gearing down using a gearbox or similar reduction method such as pulleys.
Operating at a lower voltage can be achieved using a motor speed controller or for small motors like the model B, a fixed or variable voltage regulator. Please note that operating at reduced voltages will result in a lower torque i.e it will not be as powerful as running it at its 'normal' voltage.
However, reducing the speed by using a gearbox will result in increased torque for lower speed.
We have a range of geared motors that may well suit your application. We also have a range of small gears, plastic gearboxes, pulleys even miniature chain and sprockets.
One popular alternative is to use one of our voltage regulators see here http://www.technobots.co.uk/contents/en-uk/d408.html The variable ones may not be suitable with the model B motor due to its low operating voltage but is suitable for similar MFA motors. We also have some low cost speed controllers here http://www.technobots.co.uk/contents/en-uk/d81.html The 10A model will work but again, its output will only go down to 2V so I would suggest either a geared motor or a MFA motor that operates on say 12V.
Hope that is of some help. |
David L Coombs (D_coombs)
Member
Username: D_coombs
Post Number: 1
Registered: 4-2006
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| Posted on Friday, April 21, 2006 - 12:08 pm: |
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I am new to RC and robotics, although I have been a modeller for a long time. Can you please tell me what the designation in motor size means? I see "400" size motors or "480" size, etc, but do not know what this size refers to. |
Dave (Css_broadcast)
Member
Username: Css_broadcast
Post Number: 1
Registered: 4-2006
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| Posted on Friday, April 21, 2006 - 7:52 pm: |
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The numbers refer to a particular type of motor in accordance to a manufacturers motor size template. The number is a code that tells the end user that the mounting holes are so far apart from each other, the distance from the shaft, the overall specifications etc etc etc. Rather than try to give all of the dimensions in the specification sheet of the motor (which would read like a book on how to start a five stage rocket and plan a set trajectory for a family weekend day out), manufacturers find it easy to list a simple number. Presto! Done! All the user has to do, is look it up to find ALL of that required data. The charts are on the Internet somewhere. So there you go. Boring eh? Dave |
