That was my initial concern, I'm using a 6S.
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That was my initial concern, I'm using a 6S.
What kind of video would you be after? Am happy to do one if it helps, haven't so far.
I wouldn't generally advise running the 14.4V on 6S, the motors will want to draw an awful lot of current and possibly overheat- but you could work around the issue by using a current limited controller and setting travel limits on your transmitter so that the maximum voltage the controller will put out is less than the battery voltage. If you possibly can heat-sinking the rear of the motor near the brushes ought to help too, I've recently had a set of rear mounts cut for this purpose but haven't yet got round to tapping & sanding them for use. Additionally removing the ring around the motor will result in a slight power drop and (unloaded) speed increase which might help depending what characteristics you're after.
Could always swap out the motor for a 24V drill motor. Am I right in thinking that the bolt pattern is the same as any standard drill motor?
Only '500' type motor cans would be a straight swap, all 24V drills I've dissected have had speed 700 or 800 sized motors with a different bolt pattern and usually 5mm rather than 3.175mm diameter shafts. You might be able to find an 18V drill with a 540 or 550 size motor however
Performance video of them under load driving about with a 13.6kg load on them.
So there capable of working on 21v but you dont suggest running them over 4s?
Suggested esc? Scorpion xxl?
I'll aim to put one together in the next month, hopefully featuring the tracked vehicle I've been working on for a while (if someone else who's bought the motors doesn't do it before me!)
For the 14.4V motor yes, it will 'work' but I wouldn't advise it unless you took precautions to avoid overheating and stalling. This is a bit of a generalisation though as there's many variables (2WD? 4WD? Wheel size? Traction levels? Run time?) which will all dictate whether the motors are going to cope at any voltage. I should add that running at above nominal voltage isn't covered in the warranty.
I'd personally recommend an XXL, though not to say others wouldn't work too
The 14.4V version runs 570 rpm. With an 80mm wheel, that's a tad slow. (.08*p*570*60/1000=) 8.5 km/h. @6S = 13km/h still on the slow side
I'm going to use a 170mm Grafix/Flex wheel on the 9.6V set I have. Wat gives me 16km/h with 3S
The ali for the adaptors is sitting in the lathe , bought myself a 3/8 UNF tap and die set. I have high hopes for this.
It's 850 grams lighter than a set of Speed 900 MSR 12-54's , and 500 gram lighter than the Speed 700 KOS 12-36-12-72 setup I have around.
My motors and wheels arrived today. Took them apart to have a look and everything seems very nicely made. They've had their run-in period, now I just need to decide what robot to put them into.
Cheers Ewan :)
My pleasure, looking forward to seeing them all put to use!
Will there be a 6s 22.2v version in future?
Possibly in the future (which would be an 18V or 24V nominal motor), not any time soon though I'm afraid
got my motors, they look great, fantastic!
Raw for now, but the 160mm Grafix/Flex wheel is mounted to the 9.6V units I have.
Needs some refinement and a tread on the wheel.
http://i172.photobucket.com/albums/w...2-25155922.jpg
Good to hear Harry & looking good so far Mario.
The website's just been updated to add spare motors for the GR01's. Another product update coming later today!
Glad to hear (and see) Harry!
A couple of updates: I've had to adjust the offer for free delivery to orders above £70 to better reflect the true cost.
We've also got a new product in stock and on the website as of now, a range of compact linear actuators.
http://www.gimsonrobotics.co.uk/prod...m_overview.jpg
The base product is available from today with more variations coming by early February. Don't hesitate to ask if you've any questions!
The actuators look nice
Didn't pay too much less for a second hand one from eBay
Having been able to find a supplier for replacement pinion gears of the right size sooner than expected I've been able to put up the alternative motor choices for the actuators.
http://www.gimsonrobotics.co.uk/prod...r_overview.jpg
At the moment the limit switch circuit is disconnected when fitting the HRS550 as it needs to be modified to handle the extra power, we will be offering the option for a modified circuit soon.
That's the last new product for a while!
What would have more power 4 Argos drill motors or 2 gimpsons?
Not sure what a 'gimpson' is (ahem!), but if you're talking about the GR01's it's not a straight comparison- operating data for Argos drill motors is not known and though they usually have the same motor can size they can sometimes be size '540' or '545' motors. Also you don't mention what voltage you would run at?
As a generalisation a single GR01 is very likely to be more powerful at a comparable voltage to a cheap drill, but double as 'powerful' as you suggest (1 GR01 vs. 2 cheap drills) I cannot know.
i think the only way to see the difference is by..................FIGHT!!!.....
i've just ordered a pair of the 14.4v version of these motors can someone tell me the awg of the wire for these motors at 14.4v?
You can buy with or without wire tails on the motor, if you decide to have them (plain or with Deans style connector) the ones provided are 2.5mm-sq cross section which is closest to 13AWG, as described on the product page.
good spot, thank you
Have you actually tried to place this yet btw, I've not had anything though the system yet - Apologies if this is a problem at our endQuote:
i've just ordered
no got them.....they are the bizz, thanks
note: whats the total thread length of the brass insert (m5)? I have a 3mm aluminium base and was going to use M5x12mm length screws, is that the longest screw I could use with the motors.
Ah good to hear, was a bit confused as the order was by a different name. The usable thread depth is 10mm in all front plate inserts, 5mm in rear mount inserts (by the motor) so you might want to cut the bolts down a little for the rear holes if you use them.
(From http://www.gimsonrobotics.co.uk/GR01_pl ... tions.html)
Forgive me they look grea, can you give me an application :)
I've had a couple of customers want to mount objects to the motor without having to build their own adapter so came up with this. It's probably not too useful in fighting robot circles but you never know.
Also for anyone that's interested I've just spent a couple of hours reformatting the website to look as it should in Internet Explorer.. I have honestly not used IE in over a year before that, what a nightmare!
I think thats a good idea. ;-)
I love that you're familiar with memes, haha! I see them popping up all over the forums. :)
We've taken delivery of 2.5sq-mm silicone cable to go along with the existing 4sq-mm and 6sq-mm. The new size is perfect for featherweights and is what we use on the GR01 with-leads option.
http://www.gimsonrobotics.co.uk/images/cable-thumb.jpg
Just wondering, how mush to the 9.4 volt motors weigh with out the gear boxes?
*9.6V, weighs 220g without leads