Brushless motor brackets

[BRYAN ASTONParticipant @bryanaston57723]

Motor brackets

[BRYAN ASTONParticipant @bryanaston57723]

Greetings all

Stupid question,where can I buy a boat suitable mounting bracket for a brushless outrunner motor, ? a universal type would nice. I have searched EBay and Amazon, and various websites to no avail, any ideas?

Regards,

Bryan Aston

[BRYAN ASTONParticipant @bryanaston57723]

PS

Or are the brackets the same for both types of motor.

Regards

[Andy CParticipant @andyc56856]

Hi Bryan,

Most brushless motors are meant for hello or airplane use and the the mounting holes are set in a cross shaped pattern. I used plastic are to make one thinking I would use it in my Triton, but ended up using a different motor setup. You can use the the cross shaped mount, meant for the hello and airplane world. Works out quite nicely.

Andy

[Andy CParticipant @andyc56856]

Hi Bryan

A photo of the mount I put together.

[harry smith 1Participant @harrysmith1]

Hi Bryan

Hobbyking have a number of motor mounts some with built-in water cooling(36mm code9215000019-0) or for 28mmm motors a whole drive kit which the motor mounts onto the prop shaft(codes Bp22-S PROP and BP-22 Sleeve).

These would the best setup for a small boat, no lining up to worry about, and the whole drive line acts like a heat sink.

Also a universal alloy 100mm width motor mount which mounts 28mm up to the largest motor.

As for water cooling these motors I have not use cooling in my boats!!

I run a 3639 1100kv in one and a 3648-1450kv in the other on 5800mah batteries.

I get about a hour on the 3639 motor and about 1/2 hour on the 3648 motor.

I run these fairly hard and the battery gets hotter than the motors.

I use the car 60Amps ESCs with reverse(set to 25%) and these only get warm.

[BRYAN ASTONParticipant @bryanaston57723]

Harry and Andy

Thank you both for your suggestions I will I will try to make my own as Andy suggested first ,if all else fails I will contact Hobbyking ,the trouble with Hobbyking brackets is that they don't tell you the position of the screw holes or perhaps I am reading it wrong.

Regards

Bryan

[BRYAN ASTONParticipant @bryanaston57723]

Greetings all

You may remember my previous visits to the forum regarding my Calypso ship that capsized earlier in the year, today I bit the bullet and took it to the lake and it sailed perfectly, I must have got the ballast correct. Happy days!!.

Regards

Bryan

[Colin BishopModerator @colinbishop34627]

Great to hear that Calypso turned out OK, you must be very pleased.

Colin

[The Long BuildParticipant @thelongbuild]

Like these

**LINK**

[BRYAN ASTONParticipant @bryanaston57723]

Greetings Colin

I think I may have too much ballast in the bow as it sails with the bow below the waterline an easy fix, As it hasn't capsized on the latest outing I will not use it as a Viking funeral barge now, but I am amazed how much ballast I had to use to keep it upright, I am now repainting it.

Regards

A happy bunny

Ps anybody got any idea how to wire up a brushless motor and ESC, I think I read somewhere that one of the leads on the motor has to be cut off is this correct?.

[Dodgy Geezer 1Participant @dodgygeezer1]

Ps anybody got any idea how to wire up a brushless motor and ESC, I think I read somewhere that one of the leads on the motor has to be cut off is this correct?.

 

I don't know what you are trying to do, but there are TWO types of ESC – brushed and brushless. Each is intended ONLY for the relevant motor type – neither of these ESCs will work with the other kind of motor.

A Brushed ESC has two output wires coming out, which go to the two motor terminals. It outputs (effectively) a variable DC voltage to the motor.

A Brushless ESC has three wires coming out, which go to the three motor terminals (in any order). This ESC outputs a variably switched multi-phase AC current which varies in frequency depending on how fast the motor is running – an entirely different output!

If you want to reverse the direction of a brushless motor, simply reverse the connections to any two of the three wires. If you cut one of the motor wires off the motor will not work, and the windings will probably melt if you attempt to run it….

 

 

Edited By Dodgy Geezer on 11/05/2015 15:50:31

[ashley needhamParticipant @ashleyneedham69188]

bryan. You may be getting confused with using two ESC off one receiver. If using TWO ESC in this case, you should disable the red wire from one ESC to stop there being any conflict in the BEC power being fed to the ESC.

As prev post. All three wires are needed for a brushless motor.

Ashley

[BRYAN ASTONParticipant @bryanaston57723]

Ashley

Thank you for your advice ,what do I know about brushless motors, nothing ,but I will eventually I think.

Thanks

Bryan

[BRYAN ASTONParticipant @bryanaston57723]

Greetings Dodgy Geezer

Thank you all is now clear,,the brushless motor I bought has its matching ESC. I only have to decide what of my boats I install it in. I will let you know the result.

Regards

Bryan

[Dodgy Geezer 1Participant @dodgygeezer1]

Sorry about that – I was shooting from the hip because I thought someone was about to do something they might regret…

Here is a picture of a simple brushless mount, made from a strip of steel…

[BRYAN ASTONParticipant @bryanaston57723]

Greetings Dodgy

I don't know what you have to apologise for, the photo showing the bracket is ideal for a in runner motor I assume ,however I have an outrunner and the screw holes are in the front, it should be pointed out that I have never seen a brushless motor of any sort close up before so I am in strange territory.

Regards

Bryan

[ashley needhamParticipant @ashleyneedham69188]

Bryan. The dodgy motor as above is indeed an OUTRUNNER, and these can drive from the rotor side, as pictured, or from the "rear" depending on the motor and indeed the last motor i bought had an adaptor to enable drive from either end.

An INRUNNER motor would have a bracket just like a normal brushed motor, and apart from being an anodised bright mettallic colour would look just like a can motor, but with three wires at the rear..

Outrunners have tapped holes in the stator to screw screws into, for fixing purposes, in a square 4 arrangement. Dodgy`s home made bracket is flat and simply has a hole in the centre for the rear bit of shaft (usually a bit sticks out) and four holes drilled appropriately for the fixing screws.

Ashley

[Dave MilbournParticipant @davemilbourn48782]

This type of moulded GRP/Nylon mount is perfect for both of the 28mm dia motors I have (Turnigy and Leopard). **LINK**
DM

Edited By Dave Milbourn on 12/05/2015 16:49:16

[BRYAN ASTONParticipant @bryanaston57723]

Ashley

The brushless motor I have has four screw holes in the front around the shaft none out of the rear, I have made a bracket out of thick styrene , it seems quite strong, time will tell.

Dave I have ordered a bracket that you recommended just in case.

I am considering fitting the motor in my Sea Commander the first boat I built, I shall ponder.

Thank you all for your help.

Regards

Bryan

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