[NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"

[Keith Hoard]

A few years ago I bought a Hakko 936 soldering station.  It is "only" 65
watts, but it can quickly and easily solder 10 gauge wire all day long.
Warm up time is about 1 minute from switching on.

The key to soldering big stuff is the "heat recovery" ability of the
soldering iron.  The Hakko has a ceramic element in the tip of the
soldering iron that acts as a heat governor while soldering to always
maintain the preset temp on the dial.  As soon as you put the tip on
anything that draws heat away (wire, wet sponge) the power LED on the front
starts blinking showing you it is sending more juice to the tip.  Equally
important is that the tip cools down when you're not using it so the silver
coating on the tip doesn't oxidize.  I still have the original tip on my
Hakko.

I have a 100W soldering gun that can't even begin to keep up with the Hakko
soldering station, so more power isn't always better.

Keith Hoard
Collierville, TN
khoard at gmail.com




On Tue, Aug 21, 2012 at 7:53 AM, Michael Cohen <precisionaero at hotmail.com>wrote:

>  Well, I have turned off the logger, but tomorrow night, when I get back
> from San Diego, the ESC will get some new bullet connectors, just to be
> sure.  With a contest coming up in St. Clairsville, I wouldn't what to have
> to break out "old reliable"..... the YS powered Integral!
>
> I do use a technique like Verne stated in another post.  About the only
> thing I have had trouble with is, on the 4mm bullets, once the pre-tinned
> wire gets pushed down in the connector with melted solder, there isn't any
> room left for adding more.  I do hold the iron right at the small hole in
> the bullet, just to be sure all solder draws there while it is still
> hot.  We will see what happens Thursday when I do a run up.
>
> Regards,
> Mike C
>  ------------------------------
> From: DaveL322 at comcast.net
> To: nsrca-discussion at lists.nsrca.org
> Date: Tue, 21 Aug 2012 07:28:30 -0400
>
> Subject: Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
>  When the data logging buffer on a CC ICE ESC is full, it is not uncommon
> to have a small “knocking” sound with outrunners and large direct drive
> inrunners (ie, Pletty Advance).  This is well documented on some of the
> forums.  The sound is generally described as a light tapping, knocking,
> rattle, etc…..and generally does not occur across the full throttle
> range.   I’ve never heard it described as loud or violent.  The solution is
> to turn off the data logging when it is not specifically needed.
>
>
>
> I have never encountered the knocking on a geared inrunner; full buffer or
> not.
>
>
>
> Regards,
>
>
>
> Dave Lockhart
>
> Team Castle Creations
>
>
>
>
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org [mailto:
> nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *Dave Harmon
> *Sent:* Monday, August 20, 2012 11:53 PM
> *To:* 'General pattern discussion'
> *Subject:* Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
>
>
> I was out flying this afternoon till dark and Ken Kaut showed up.
>
> I asked him about my knocking sound and he said right away that the
> logging is the cause of the knock.
>
> It sounds exactly like thumping the fuse with your finger.
>
> Ken said that when the buffer is full…..it doan make no mo noise……or just
> shut off the logging.
>
> At least it ain’t ready to catch fire or come aloose or anythin….
>
>
>
> And for that I’m grateful…I don’t need any more problems.
>
>
>
> *Dave Harmon*
>
> *NSRCA 586*
>
> *K6XYZ[at]sbcglobal[dot]net*
>
> *Sperry, Ok.*
>
>
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *Anthony
> Abdullah
> *Sent:* Monday, August 20, 2012 6:47 PM
> *To:* General pattern discussion
> *Subject:* Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
>
>
> I had the exact same sound with mine, horrible sound like throwing a gear
> at full throttle. I was actually surprised when there wasn't any damage.
> Mark loaned me an ESC and I went home to start testing. Plugged his in and
> it worked perfectly. Mine had gotten to the point of doing it almost every
> time I throttled up. I went to take his ESC out and the bullet from the
> motor came right off with it. Hmmmm this migh have had something to do with
> it! I resoldered all of the bullets and have not had the problem since.
>
>
>
> I suck at soldering so I wasn't terribly surprised. I did notice before it
> got worse that the motor would hesitate a little bit, make a little
> gringing noise, or turn backward about a 32nd of a turn when I first hit
> the idle switch on my transmitter to start the prop spinning. A couple
> years ago at the Columbus, OH pattern contest my Neu motor wouldn't start
> at all without making a horrible grinding noise. Sent it back to me and
> they changed some things but the problem remained. I finally changed out
> the ESC and needed to change the motor bullets to the right type and
> mysteriously the problem went away. Scott Pavlock is still running that
> motor and ESC with zero issues!
>
>
>  ------------------------------
>
> *From:* Michael Cohen <precisionaero at hotmail.com>
> *To:* NSRCA <nsrca-discussion at lists.nsrca.org>
> *Sent:* Mon, August 20, 2012 4:36:47 PM
> *Subject:* Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
> Well, I needed an excuse to swap out the current connectors on the ESC for
> some deeper ones....  I just need to wait until I am back in town.
>
> Mike C
>
>  ------------------------------
>
> CC: nsrca-discussion at lists.nsrca.org
> From: vogel.peter at gmail.com
> Date: Sun, 19 Aug 2012 20:15:32 -0700
> To: nsrca-discussion at lists.nsrca.org
> Subject: Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
> One of the common causes of that is a bad solder joint between the ESC and
> the motor where some arcing is happening in the joint, frequently not seen
> on the ground unless it's gotten really bad because you don't have the G
> variations on the mechanical connection of the bad joint.
>
>
>
> Peter+
>
> Sent from my iPhone4S
>
>
> On Aug 19, 2012, at 7:52 PM, "Verne Koester" <verne at twmi.rr.com> wrote:
>
>  I was there when it happened and it definitely wasn’t a normal sound. I
> thought something had broken inside the fuse. Mike landed immediately and
> we checked everything and all seemed okay including a run-up on the ground
> so he went up again and the sound happened again but later in the flight
> (the first time it happened immediately after he broke ground). I’m very
> familiar with the plane since it used to be mine. I had the same motor but
> a different controller. Another pilot there said it sounded like an
> “electric backfire”. I’ve never heard one before, but it sounded pretty
> scary.
>
>
>
> Verne Koester
>
>
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org [
> mailto:nsrca-discussion-bounces at lists.nsrca.org<nsrca-discussion-bounces at lists.nsrca.org>]
> *On Behalf Of *Dave Harmon
> *Sent:* Sunday, August 19, 2012 5:54 PM
> *To:* 'General pattern discussion'
> *Subject:* Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
>
>
> Hi Mike….
>
> I have noticed a sound like a ‘knock’ on the side of the fuselage on 3
> different airplanes, Plett 30-10 and Advance and three ESC…a CC 80HV ICE
> and 2 CC 80HV ICE V2.
>
> I’ve looked at logs and don’t recognize any problems.
>
> I have always wondered what the sound was…at first I thought it might have
> caused by the cables to the rudder and elevator slapping the side if the
> fuse but they are fastened down tightly.
>
> Then…I thought it might be caused by the wheels rattling….
>
> It seems to happen most of the time on an up line.
>
> It doesn’t seem to be a problem…yet…but I would like to know what is
> causing it.
>
>
>
> *Dave Harmon*
>
> *NSRCA 586*
>
> *K6XYZ[at]sbcglobal[dot]net*
>
> *Sperry, Ok.*
>
>
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *Michael
> Cohen
> *Sent:* Sunday, August 19, 2012 3:48 PM
> *To:* NSRCA
> *Subject:* [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2
> combo "backfiring"
>
>
>
> I had a strange problem today with a Hacker C50-14XL comp/Castle 80HV Ice
> 2 combo.  Sounded like the motor/ESC was backfiring, so I stopped flying.
> I had 56 flights before today, and this is the first time I noticed the
> backfiring.  I was at a contest last weekend, so if it had occurred there,
> I think people, including me, would have noticed.
>
> Well, upon taking it home and hooking it up to the computer, I did find
> that all my settings were still where they were supposed to be, so there
> was no unexplained change there.  I downloaded the data logger, but I
> really didn’t check it too closely.  I then went online to look for
> backfiring problems and the only thing I found was a sample rate of 10hz
> (mine was at 1hz) could cause a backfire.  I also noted a comment that if
> you run out of data logging space, that could cause a “ticking”.  I did not
> have a ticking, but I decided to clear all stored logging information and
> set the sampling rate to "disabled".  I ran the motor/ESC for about a
> minute on the ground with no evidence of a backfire.  Could the data
> logging/storage space been it?  Has anyone else had a similar experience?
> FYI, here is my program:
>
>
>
> Brake Strength: 30%
>
> Brake Delay: No delay
>
> Brake Ramp: Medium
>
> Cutoff Voltage: 3.2
>
> Current Limiting: Normal
>
> Cutoff Type: Soft Cutoff
>
> Motor Start Power: low (39)
>
> Motor Timing: Custom (3)
>
> PWM Rate: 8khz
>
>
>
> Regards,
>
> Mike Cohen
>
>
>
>
>
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