pololu HP motors

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haz
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Re: pololu HP motors

Postby haz » Thu Feb 16, 2012 9:35 pm

does anto use them?

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peterwaller
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Re: pololu HP motors

Postby peterwaller » Fri Feb 17, 2012 10:05 am

Andrew I have only seen them on the internet not sure how good they are.
I have no way of measuring the torque but it is all I can do to stop the shaft turning with a pair of pliers.

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Re: pololu HP motors

Postby peterwaller » Wed Apr 25, 2012 7:50 pm

I was just trying to buy some of the cheap motors from ebay but the seller is away so you cant buy.
After much searching I found this seller with what appears to be the same motors:
http://www.ebay.co.uk/itm/190633157962? ... 1423.l2649
http://stores.ebay.co.uk/Hercolor/_i.ht ... =283674214

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BeligerAnt
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Re: pololu HP motors

Postby BeligerAnt » Sat Feb 23, 2013 10:25 pm

I just noticed that Fast Components are selling some of the gearmotors *really* cheap (£4.99 for a PAIR!) through their Ebay shop.
They are described as "seconds" and they appear to have a double-shaft motor which is not entirely ideal. Although, for that price, how far wrong can you go?

http://stores.ebay.co.uk/Fastcomponents ... 7675.l2563
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haz
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Re: pololu HP motors

Postby haz » Sun Feb 24, 2013 9:26 am

Those 430rpm are the ones I used in the old Blitzkrieg Bot. they are alright, but they are 12v so I needed to run 4 cell to get some speed out of them.

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Re: pololu HP motors

Postby Andrew_Hibberd » Fri Mar 15, 2013 10:48 pm

I have just been looking at Pololu, they are now stocking a range of medium power 'sanyo' style gear motors inbetween the normal and HP models. They also have a selection of HP motors with the motor shaft extended out the back which could be used for encoders.
TEAM GEEK!

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razerdave
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Re: pololu HP motors

Postby razerdave » Sat Mar 16, 2013 11:02 am

BeligerAnt wrote:I just noticed that Fast Components are selling some of the gearmotors *really* cheap (£4.99 for a PAIR!) through their Ebay shop.
They are described as "seconds" and they appear to have a double-shaft motor which is not entirely ideal. Although, for that price, how far wrong can you go?

http://stores.ebay.co.uk/Fastcomponents ... 7675.l2563


Well if they are the ones Ceri bought, they could go very wrong. He has 2 of these motors (with the bit sticking out of the cap end) and neither work. I also have 4 for a different project of Ceri's and when I hooked it up to a controller at least 1 didn't work. The controller was checked out and given a clean bill of health. So I'd be wary.

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Re: pololu HP motors

Postby peterwaller » Sat Mar 16, 2013 11:09 am

I just bought some of the 430rpm 12v ones from ebay that Gary posted about and thay don't appear to be seconds in any way I can see.
I have fitted 4 in my semi autonomous robot and they do 302 rpm at 8.4v and a stall current of around 320 ma.
I got 6 for £18.61 so £3.10 each including P&P so very good value and in just 2 days.
Just saw Daves post as I was posting this all 6 of mine worked what speed were the ones you have Dave.

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Re: pololu HP motors

Postby Psychostorm » Sat Mar 16, 2013 4:25 pm

The same - 430 rpm fast components the lot of them

Well, I can't blame the two motors I tried yesterday in ND - I think I ruined the brush assembly trying to wire cut the spare shaft.

The other one... bad batch?

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razerdave
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Re: pololu HP motors

Postby razerdave » Mon Mar 25, 2013 8:45 pm

Something to report about these motors:

Ceri is working on a new ant and after getting 4 of these motors, only 2 worked, and ceri had bought another 4, and we tried them and had, again, only 2 working. Checked the connections, checked voltage was going to them, all checked out fine, but the motors were dud. These motors appear to be cheap for a reason :P

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Re: pololu HP motors

Postby Rapidrory » Sat May 31, 2014 11:30 pm

Bit of a bump, but just bought 10 of these (you have to specify what rpm and voltage):

http://www.aliexpress.com/item/N20-DC-G ... 08477.html

Probably a terrible idea, but at £2.10 each, there's only so much that can go wrong... I hope! :-?

The reviews all look good at least, and apparently you can do a mixed order with different motors as long as it adds up to a multiple of 10 (e.g. 4x50:1 and 6x30:1 or something)... If it does turn out alright this could be a good source :L
Rory Mangles - Team Mangler

Robots: Too Many...

NanoTwo antweight speed controllers. (viewtopic.php?f=1&t=2128)


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