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Search: Posts Made By: ron_van_sommeren
Forum: Off Topic Chit Chat 07-16-2014, 12:31 PM
Replies: 55
Views: 1,511
Posted By ron_van_sommeren
RCG made a mistake, they corrected it, all 25 of...

RCG made a mistake, they corrected it, all 25 of them ;), with the help of people in this WFF thread.
Everybody happy :)

I cannot reply in Nigel's RCG thread, otherwise I would have mentioned it...
Forum: Off Topic Chit Chat 07-14-2014, 12:40 PM
Replies: 55
Views: 1,511
Posted By ron_van_sommeren
got permanent ban on RCG

I can't even appeal anymore.
25 'reasons' (http://www.rcgroups.com/forums/search.php?do=finduser&u=3018) for my permanent ban:
www.rcgroups.com/forums/search.php?do=finduser&u=3018...
Forum: General Electric Discussions 06-21-2014, 05:40 PM
Replies: 7
Views: 199
Posted By ron_van_sommeren
Charge/discharge rates as a function of #cells ...

Charge/discharge rates as a function of #cells
www.scriptasylum.com (http://www.scriptasylum.com)
-> RC calculationshttp://www.scriptasylum.com/images/rccalculations.jpg...
Forum: General Electric Discussions 06-17-2014, 10:52 PM
Replies: 8
Views: 226
Posted By ron_van_sommeren
Don't play with throttle when this occurs, you...

Don't play with throttle when this occurs, you may burn motor and/or controller.
Forum: Batteries & Chargers 06-15-2014, 05:37 PM
Replies: 9
Views: 300
Posted By ron_van_sommeren
I know you know :) but I'm always a bit...

I know you know :) but I'm always a bit (over)cautious with regards to beginners. Especially when (dis)charging is the topic.
Forum: Batteries & Chargers 06-13-2014, 03:07 PM
Replies: 26
Views: 679
Posted By ron_van_sommeren
Comparing charger limits, max.current goes down...

Comparing charger limits, max.current goes down as #cells goes up!, and power supplies
www.scriptasylum.com (http://www.scriptasylum.com/)
-> RC calculations...
Forum: Brushless Motor Construction 06-08-2014, 02:54 PM
Replies: 36
Views: 2,293
Posted By ron_van_sommeren
BTW wildflyer, you should replace all magnets....

BTW wildflyer, you should replace all magnets. Otherwise you end up with different magnet-strengths. And glue them in alternatingly.
Here's a nice method that will give you bomb-proof magnets...
Forum: Brushless Motor Construction 06-08-2014, 01:40 PM
Replies: 36
Views: 2,293
Posted By ron_van_sommeren
On Christo's diy motor building site ...

On Christo's diy motor building site
www.bavaria-direct.co.za
-> motor constants
Forum: Beginners 12-09-2012, 12:53 PM
Replies: 8
Views: 850
Posted By ron_van_sommeren
Very handy/instructive tools and calculators,...

Very handy/instructive tools and calculators, wiring diagrams, demos:
The Script Asylum (http://www.scriptasylum.com)
-> RC calculations...
Forum: Power Systems 10-03-2012, 04:43 PM
Replies: 15
Views: 1,485
Posted By ron_van_sommeren
How do you fly? Throttle management or WOT most...

How do you fly? Throttle management or WOT most of the time? Six feet is a LOT.

Battery wire resistance (voltage and power loss) is not the issue, when talking about long battery wires will kill...
Forum: Power Systems 09-16-2012, 02:16 PM
Replies: 2
Views: 877
Posted By ron_van_sommeren
Only Kv and power (better: max.current) are...

Only Kv and power (better: max.current) are important Steve. And to a lesser extent, efficiency (= $$$). Voltage does not kill a motor, current does: volts jolt, current kills. The rest follows from...
Forum: Beginners 09-15-2012, 12:43 PM
Replies: 55
Views: 5,395
Posted By ron_van_sommeren
New Weatronic (http://www.weatronic-usa.com/)...

New Weatronic (http://www.weatronic-usa.com/) transmitters, scheduled for 2013.

Hall-sensors (https://en.wikipedia.org/wiki/Hall_effect_sensor) (contactless) instead of pots...
Forum: Humor 09-09-2012, 12:02 PM
Replies: 2
Views: 677
Posted By ron_van_sommeren
Talking A typical sunny day in Great Brittain ...

A typical sunny day in Great Brittain.
Mayhem ...
Bloodshed ...
Trauma ...
Mutilation ...
Madness ...
Injury ...
Pain ...
Mishap ...
Perseverance ...
Forum: Scale E-Powered Aircraft 08-20-2012, 07:23 PM
Replies: 5
Views: 2,326
Posted By ron_van_sommeren
Dummy motors, last item on page. Nice plane kits...

Dummy motors, last item on page. Nice plane kits too :)
http://www.topnotchkits.com/index_files/TN_Kits.htm

http://www.topnotchkits.com/index_files/Gallery/ContEngine/ContEngineSM.jpg...
Forum: Power Systems 08-15-2012, 02:39 PM
Replies: 12
Views: 975
Posted By ron_van_sommeren
E-flight 101 by RCG member Ken Myers, will at...

E-flight 101 by RCG member Ken Myers, will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:
http://www.theampeer.org/framesefo.html
-> Electric Power Basics
and this...
Forum: General Electric Discussions 06-29-2012, 06:43 PM
Replies: 32
Views: 4,177
Posted By ron_van_sommeren
Answered somewhere in the RCG thread. ...

Answered somewhere in the RCG thread.

Prettig weekend ;) Ron
www.modelbouwforum.nl
Forum: General Electric Discussions 06-29-2012, 03:22 PM
Replies: 32
Views: 4,177
Posted By ron_van_sommeren
Not quite the average voltage. All answers in...

Not quite the average voltage. All answers in this thread by seasoned EE's (I'm an EE gone over to the dark side, embedded software), Bruce Abbott designed a few diy controllers and Greg Kamysz was...
Forum: General Electric Discussions 06-28-2012, 10:42 PM
Replies: 32
Views: 4,177
Posted By ron_van_sommeren
E-flight 101 by RCG member Ken Myers, will at...

E-flight 101 by RCG member Ken Myers, will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:
http://www.theampeer.org/framesefo.html
-> Electric Power Basics
and this...
Forum: General Electric Discussions 06-18-2012, 07:08 PM
Replies: 33
Views: 2,890
Posted By ron_van_sommeren
Twin motor setup: careful with extending battery...

Twin motor setup: careful with extending battery wires:
http://www.rcgroups.com/forums/showthread.php?t=952523
-
-
Forum: General Electric Discussions 05-24-2012, 12:29 PM
Replies: 27
Views: 3,555
Posted By ron_van_sommeren
Don't worry Denny, you could/must reduce battery...

Don't worry Denny, you could/must reduce battery capacity accordingly by a factor 10: same amount of energie stored, same weight.

BTW if you are looking for high voltage high current controllers,...
Forum: General Electric Discussions 05-23-2012, 03:53 PM
Replies: 27
Views: 3,555
Posted By ron_van_sommeren
Silicone insulated. The Dutch repair...

Silicone insulated.



The Dutch repair centre for Futaba, JR, HiTec and Simprop says he repairs/sees ESC's on a regular bases, due to long battery wires.

Mind you, it's not all black or...
Forum: General Electric Discussions 05-23-2012, 10:18 AM
Replies: 27
Views: 3,555
Posted By ron_van_sommeren
Goedendag Haystack ;) Skin-effect does not come...

Goedendag Haystack ;) Skin-effect does not come into play at the frequencies ESC's use (8, 16 or 32kHz). This also goes for the harmonic (higher) frequencies...
Forum: Power Systems 06-18-2011, 02:54 PM
Replies: 32
Views: 3,276
Posted By ron_van_sommeren
All good, but not enough, add capacitors, as ALL...

All good, but not enough, add capacitors, as ALL esc manufacturers say.

About better controller cooling:
www.mgm-compro.com
-> tech.info
-> controller cooling in models

Prettig weekend ;) Ron
Forum: Power Systems 06-16-2011, 07:34 PM
Replies: 32
Views: 3,276
Posted By ron_van_sommeren
The guys at castle do have a point Larry. Thank...

The guys at castle do have a point Larry. Thank you :)
Forum: Power Systems 06-16-2011, 10:57 AM
Replies: 32
Views: 3,276
Posted By ron_van_sommeren
The killing voltage spikes are higher than...

The killing voltage spikes are higher than battery voltage and are caused by wire inductance, not by battery or wire resistance. Using thicker wire is a good idea though, it gives lower voltage drop...
Forum: Power Systems 05-08-2011, 06:26 PM
Replies: 19
Views: 3,193
Posted By ron_van_sommeren
Too long battery wires will kill ESC, over time: ...

Too long battery wires will kill ESC, over time:
http://www.rcgroups.com/forums/showthread.php?t=952523

Contents
Problem
Solution
Rule of thumb
Capacitor type
Capacitor polarity!
...
Forum: Power Systems 10-13-2009, 09:53 AM
Replies: 416
Views: 28,718
Posted By ron_van_sommeren
female dog, female dog, moan, moan, whine, whine...

female dog, female dog, moan, moan, whine, whine ...
Just keep sending mail after mail, that will do the trick, so they get swamped even more.

I know this is a service thread but some here are...
Forum: Brushless Motor Construction 10-11-2009, 02:17 PM
Replies: 95
Views: 14,135
Posted By ron_van_sommeren
It's an overlapping 'wave' winding diagram. E.g....

It's an overlapping 'wave' winding diagram. E.g. several Actro (http://www.actro.de) and all X-era (http://www.xeramotors.com) motors use that diagram too. It is a 6statorpole/8magnetpole motor, it's...
Forum: Brushless Motor Construction 09-20-2009, 03:01 PM
Replies: 24
Views: 4,271
Posted By ron_van_sommeren
http://www.youtube.com/watch?v=iHYlWKICkqc ...

http://www.youtube.com/watch?v=iHYlWKICkqc
http://www.youtube.com/watch?v=Ybb0Ysh0FRE

Motor rewinding 101, must read:
www.gobrushless.com
-> knowledge base
-> basic overview 1-5

Tips and...
Forum: Brushless Motor Construction 09-09-2009, 09:45 AM
Replies: 14
Views: 4,978
Posted By ron_van_sommeren
Most efficient motor: ...

Most efficient motor:
http://www.csiro.au/resources/pf11g.html

As others already wrote, more information about the vehicle for narrowing things down would be very useful Nate.
What kind of...
Showing results 1 to 30 of 116

 
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