Charlie

[Bob Abell 2Participant @bobabell2]

30mm MDF?

I'm not surprised, there's no photies!

Errrrr…..Why no photo's?

Bob

[Paul TParticipant @pault84577]

Hello Bob

30mm MDF is dense and perfectly flat so its ideal as a building board, I had been expecting to buy an off cut piece of kitchen worktop but the MDF was cheaper.

Might post a photo of the completed boat.

Paul

[Paul TParticipant @pault84577]

Kevin

After taking advice from my good friend DM I have decided to fit brushless motors to Charlie.

LC3542-5T 1080KV Leopard Outrunner Brushless Motor.

Paul

[Bob Abell 2Participant @bobabell2]

Paul emerges out of the Stone Age and into the latest technology of today!

This should be interesting!

Has the suggested motor got any provenance, Paul?

I`ve got all the info regarding the Ellie and SloMo motors, if you are interested

Bob

[Paul TParticipant @pault84577]

Hello Bob

I know very little about the motor or ESC but I will be doing some research into brushless to bring myself into the 20th century.

If DM rates them ……..that's good enough for me.

Paul

[Dave MilbournParticipant @davemilbourn48782]

I've actually slightly modified my "best guess"! I think that perhaps the 960kv 9T version might be more suitable because it will enable better slow-speed control (having more turns) while still being more than powerful enough – especially running on 3S and in tandem with another one. The 60A ESC suggested will be OK for this motor, too.

The quality of these Leopard motors is astonishing; they are almost works of art. It's also heartening to see a decent heat-sink and sensible-sized cable on a speed controller. Some of the other so-called high-current affairs leave me baffled e.g. no heat-sink and 16AWG cable for a 120A ESC. Neither the motor nor the ESC are cheap but they are coming from a very well-established UK suppliers (Component Shop), so there will be no problem with after-sales service or warranty issues.

(BTW My new model also has a brushless motor, but it's nothing like as big as this one.)

Dave M

[Paul TParticipant @pault84577]

Showing my ignorance here

What is 3S? I presume it refers to batteries

[Dave MilbournParticipant @davemilbourn48782]

3S was unflatteringly referred to as 'The Remedial Class' in my junior school. I avoided it by wearing glasses and pretending to be enigmatic (at eleven???).

Read this **LINK** The paragraph which starts with "Finally, Lithium Polymer (LiPo) batteries…." explains it.

Have you forgotten where you left your memory, Paul?

Dave M

Edited By Dave Milbourn on 04/04/2015 15:53:22

[Paul TParticipant @pault84577]

Dave

The comments in your school report included such words as Inexplicable, baffling, perplexing, bewildering, confusing and incomprehensible but not enigmatic.

I haven't lost my memory I just missed my last upgrade.

Paul

[ashley needhamParticipant @ashleyneedham69188]

I am fitting a "fusion 3529/10" motor to my next project..

outrunner, 10T and 14 poles, of 1300Kv, 35MM DIAMETER. No idea what sort of prop it will turn but its nice and compact, and being relativly of low(ish) Kv should be ok for a 40mm or so prop no probs, possibly, hopefully..

Paul who????

Ashley

[Dave MilbournParticipant @davemilbourn48782]

The comments in your school report included such words as Inexplicable, baffling, perplexing, bewildering, confusing and incomprehensible but not enigmatic.

Not at 11 years old, m'duck. I do remember being very proud of being described as "iconoclastic" by my 5th Form English master. We had a mutual lack of respect for Nottingham High School and its antediluvian ways. I voiced mine and was regularly beaten for it, while he kept schtum (at least in the Staff Room, it seems) and was eventually promoted to Head of Department.

I learned a lot from Mr Brown…………..

Ashley
It depends on what you want it to do and what voltage you intend to use. 40mm sounds like a minimum size to me.

Dave M

Edited By Dave Milbourn on 04/04/2015 18:57:07

[ashley needhamParticipant @ashleyneedham69188]

Dave. You will not believe what I want it for. If 40mm would be a minimum that will be super. Ashley

[Dave MilbournParticipant @davemilbourn48782]

Ashley (following E-Mail)

Ref Project #2 – I believe now, but you may have a hard time convincing anyone else! My lips are sealed, but I wonder what happened to the original?

Dave M

[Paul TParticipant @pault84577]

I'm not convinced.

[ashley needhamParticipant @ashleyneedham69188]

DM. I have not seen any more photos of anything resembling #2 so I suspect it got no further.

Paul. Easy, no sweat.

Funny enough Trevors current oddity HAS thrown up pics of a couple of boats of very similar design.

DM is probably laying down now trying to get over a glimpse of the eventual Proj No3 wot i have send him just now and who can blame him.

Ashley

[Dave MilbournParticipant @davemilbourn48782]

Yep. Just seen it. About to retire to bed with a cold damp flannel for my forehead and a large JD for my shaking nerves………. The man consistently cocks a snook at convention.

Right on, Ashley!

DM

[Paul TParticipant @pault84577]

Dave

I've just worked out the basic power to weight ratio and potential acceleration of the Charlie boat with these brushless motors.

WOW

I'm bound to hit the bank (or at New Brighton fly over the top)

Paul

[Dave MilbournParticipant @davemilbourn48782]

That's why we have speed controllers, Paul.

DM

[Paul TParticipant @pault84577]

Dave

Is that one of those Bobs Board things?

Do they work with brushless motors?

Paul

[Dave MilbournParticipant @davemilbourn48782]

Yeah – whatever.

[Paul TParticipant @pault84577]

Along with the Bobs Board I've just bought some 6v ever-ready torch batteries to power Charlie, this is really high tec electronics for me.

[Bob Abell 2Participant @bobabell2]

Try half a lemon and two nails!

Bob

[Dave MilbournParticipant @davemilbourn48782]

Go for it, Doc. Just remember it's Red to Red, Black to Black and cut the rest off 'cos you don't need 'em.
DM

[Mark Jarvis 2Participant @markjarvis2]

Dave

Which end do i cut ??????

Mark

[mike farrellParticipant @mikefarrell21522]

Now then Mark Pick your favourite colour?

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