| Author |
Message |
Mark B (Macaba)
Member
Username: Macaba
Post Number: 2
Registered: 12-2008
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| Posted on Tuesday, December 23, 2008 - 3:49 pm: |
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Thanks for your reply admin. I have a further question:
Do you have a range of sprockets that are compatible with the sprocket fitted on the 36V 750W MY1020G motor? |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 945
Registered: 10-2004
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| Posted on Wednesday, December 24, 2008 - 11:10 am: |
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That's an easy one to answer - no!
The sprockets we stock are all heavy duty to British Standards, the motors have a lighter duty type. |
James Lee
Unregistered guest
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| Posted on Friday, February 13, 2009 - 12:58 pm: |
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I need a motor/gearbox/controller solution providing 75Nm at 8rpm (24V DC PSU). Do you have any suitable geared motors - I couldn't find any when I looked. Assuming I can source a suitable gearbox elsewhere, I'd thought of using the MY6812L - Part No 1470-014 Motor and driving it through the SyRen 10 Regen 10A Motor Controller - Part No: 1506-001 I'd be operating it (in both directions) with a pushbutton and then using a couple of potentiometers to control the output voltage and current - is this possible using this combination of motor/controller or are there more suitable alternatives |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 979
Registered: 10-2004
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| Posted on Tuesday, February 17, 2009 - 7:28 pm: |
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James,
1470-014 has been discontinued. 1470-026 with a 260:1 gearing should do the job but that is a high reduction using spur gears. The Syren 25 controller should be okay with this motor but the regen current could be a problem for the power supply unless the speed is ramped down slowly. |
Dave Tierney
Unregistered guest
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| Posted on Thursday, February 26, 2009 - 5:24 pm: |
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I am looking for a 12v geared motor giving an output of 5.5 (aprox) RPM (ie very slow). It must be capable of being mounted direct onto a plate, with the drive going through the plate. Can you help? |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 990
Registered: 10-2004
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| Posted on Monday, March 2, 2009 - 7:05 pm: |
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Dave,
The motors we stock that offer such low rpm's are spur geared motors and not designed for front face mounting but have a foot bracket under the motor. Our Planetary motors will mount front the front face but are not available with such large reductions. It could be possible to modify a spur geared motor to make if front face mounting but would be quite difficult to do.
The only other suggestion is to take a 24V planetary geared motor and run it a lower voltage which of course will give a lower power output. |
Matthew Oakley
Unregistered guest
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| Posted on Thursday, March 12, 2009 - 9:11 pm: |
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Hi, kind of new to the mechanics side of all this building lark so please forgive the ignorance of this request for help.
I am needing to build a lifter mech for a platform of about 3" square, overall length of about 10-11" and as long a travel as possible, it will only need to be an up or down position. It needs to lift up to about 1-2 lbs, the load will be fixed but i dont know it exactly yet. Ideally it would be able to run from a switch at first and then by a controller when the overall build progresses. I have bought 2 12" linear track bearings and I am going to make a carriage to go between and hold the platform that will then be clear of the mech, but i need some advice on powering it. Would you recommend i go screw thread, toothed track, belt, chain? What about a motor? I will be able to use anthing from 5-12V. I bought a belt and 2 10T pulleys from you and i cant see it working, i think the belt needs too much tension.
Hope you can help. Thanks,
Matthew |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1007
Registered: 10-2004
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| Posted on Monday, March 16, 2009 - 8:01 pm: |
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Matthew,
Ignore the control aspect for now as that is relatively easy to sort. Your choice of the mechanical drive depends on space available, what happens if there is a power failure - i.e. a screw drive will stay put where as a belt drive is likely to allow the load to descend (depending on gearing). You are effectively trying to make a linear actuator but it is beyond this FAQ section to advise in detail on a mechanical design. What we can do though is help with sizing drive motors and controls. |
yinandyang
Unregistered guest
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| Posted on Friday, March 20, 2009 - 10:47 pm: |
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Hello,
i would like to spin some light circular paintings/prints using 3 v or 4.5 v batteries at around 5 to 10 rpm.
Any model gearbox motor you would recommend in particular to power the display pleae?
Thank you in advance
Alan |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1017
Registered: 10-2004
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| Posted on Wednesday, March 25, 2009 - 6:58 pm: |
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Alan,
Without knowing the actual weight involved I can't be absolutely certain but 1450-105 offers 5 rpm at 4.5V should be fine. |
Robin Anderson
Unregistered guest
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| Posted on Tuesday, March 24, 2009 - 12:05 pm: |
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Hi All,
I am after a low rpm motor for a conveyor belt model. Between 1-10 rpm ish. Voltage is not a problem.
Any suggestions as I don't want a massive gearbox on the motor.
Thanks
Robin |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1019
Registered: 10-2004
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| Posted on Wednesday, March 25, 2009 - 7:08 pm: |
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Robin,
You have not stated what torque is needed so I have no idea how large this model is but check out 1450-055 or 1450-062 or 1450-072 or 1450-082 or 1450-105. |
Scott Walker
Unregistered guest
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| Posted on Wednesday, March 25, 2009 - 12:54 am: |
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please see attached for my question.
amny thanks
 |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1020
Registered: 10-2004
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| Posted on Wednesday, March 25, 2009 - 7:21 pm: |
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Scott,
The EMG30 is not suitable. You simply need a low speed geared motor and soft grip drive wheel with some bracketry. You did not say how you wanted to control it but putting that to one side for now, I would need to know the diameter of the camera mount base that is to be driven around.
I would suggest looking at motor 1451-022 with a drive wheel 4611-024. Assuming the diameter of the camera mount is say 200mm, this would give a rotation speed of 6 rpm at 3V. |
Scott Walker
Unregistered guest
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| Posted on Wednesday, March 25, 2009 - 8:03 pm: |
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Thank you for coming back to me Paul,
I would like it even slower so would think the olarbotics GM21 360:1 Mini Metal Gear Motor - Part No: 1451-021 would be better? Right?
I will order it tomorrow once i hear from you.
--------------
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Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1021
Registered: 10-2004
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| Posted on Thursday, March 26, 2009 - 7:11 am: |
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Yes, that will be slower but without knowing that diameter of the camera mount I can only guess at the final speed. |
Mellis20ntlworldcom (Mellis20ntlworldcom)
Member
Username: Mellis20ntlworldcom
Post Number: 1
Registered: 4-2009
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| Posted on Wednesday, April 15, 2009 - 12:34 pm: |
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Dear Mr. Cooper,
I have mounted a piece of No.2 mod tracking in a piece of 25x25 box section,there is a cut out in one side to allow access to the teeth.
I want to use a car type 12v battery to drive a motor and gears to engage into teeth on the tracking.
The box section will move 150m/m. in 1-2 seconds, max.force 300lbs.twice daily.
I do not have the knowledge to be able to work out what power motor or gears axles bearings that are needed.
If you are able to advise me and hopefully supply what is needed I would be very greatfull.
I am able to fabricate the gearing housing.
Kind Regards,
Mike Ellis |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1037
Registered: 10-2004
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| Posted on Monday, April 20, 2009 - 9:57 pm: |
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Mike,
Just to confirm a couple of details first:
The speed of the box section, do you mean 150mm in 1-2 seconds?
What do you have under the box section to reduce the rolling resistance? |
Pete Redmond (Feoras)
Member
Username: Feoras
Post Number: 1
Registered: 6-2009
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| Posted on Thursday, June 11, 2009 - 7:23 pm: |
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Hi,
I need a 12v PMDC motor about 400w at about 3000rpm.
Something like the GPA400
What do you have or can recommend?
Pete |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 1066
Registered: 10-2004
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| Posted on Friday, June 12, 2009 - 7:56 am: |
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Pete, our range of motors in this size range is very limited at the moment. All we have can be seen at http://www.technobots.co.uk/acatalog/Online_Catalogue_100W_to_450W_Motors_76.htm l but they are 24V so probably not much use to you. The manufacturer we use prefers to not make 12V motors at such high powers, in fact they like to go to 36V by about 600W and 24V by 200W. |
