Dashcam "component"

[Jeff Layman]

Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

--

Jeff

 

[amdx]

On 10/5/2019 12:31 PM, Jeff Layman wrote:

On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

Could there have been a magnetic mount that was attached to the
windshield and then these iron pieces were what attracted by the magnet?

Mikek

 

[Jeff Layman]

On 05/10/19 18:23, Jeff Layman wrote:

Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

--

Jeff

 

On Sat, 5 Oct 2019 19:48:05 +0100, Jeff Layman
<jmlayman@invalid.invalid> wrote:

On 05/10/19 18:40, amdx wrote:
On 10/5/2019 12:31 PM, Jeff Layman wrote:
On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

Could there have been a magnetic mount that was attached to the
windshield and then these iron pieces were what attracted by the magnet?

Nothing in the manual about it, and in any case it has a socket for its
windshield sucker base to slide into. If there had been an intention to
use a magnetic mount, I'm sure it could have been done with something a
lot less bulky in the dashcam's body.

Maybe damps a mechanical resonance that would blur the image.



--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Jeff Layman]

On 05/10/19 18:40, amdx wrote:

On 10/5/2019 12:31 PM, Jeff Layman wrote:
On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

Could there have been a magnetic mount that was attached to the
windshield and then these iron pieces were what attracted by the magnet?

Nothing in the manual about it, and in any case it has a socket for its
windshield sucker base to slide into. If there had been an intention to
use a magnetic mount, I'm sure it could have been done with something a
lot less bulky in the dashcam's body.

--

Jeff

 

[Jeff Layman]

On 05/10/19 20:15, jlarkin@highlandsniptechnology.com wrote:

On Sat, 5 Oct 2019 19:48:05 +0100, Jeff Layman
jmlayman@invalid.invalid> wrote:

On 05/10/19 18:40, amdx wrote:
On 10/5/2019 12:31 PM, Jeff Layman wrote:
On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

Could there have been a magnetic mount that was attached to the
windshield and then these iron pieces were what attracted by the magnet?

Nothing in the manual about it, and in any case it has a socket for its
windshield sucker base to slide into. If there had been an intention to
use a magnetic mount, I'm sure it could have been done with something a
lot less bulky in the dashcam's body.

Maybe damps a mechanical resonance that would blur the image.

Quite possibly. Mild steel would certainly tick the boxes in terms of a
density-cost profile.

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

--

Jeff

 

[Jeff Layman]

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

I've just looked through at least half-a-dozen teardowns on YouTube, but
nothing even vaguely resembling those pieces of steel appeared in any of
them.

--

Jeff

 

[Jan Panteltje]

On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened Jeff Layman
<jmlayman@invalid.invalid> wrote in <qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

I've just looked through at least half-a-dozen teardowns on YouTube, but
nothing even vaguely resembling those pieces of steel appeared in any of
them.

If it is just steel could it be just vibration damping weights?

 

[Michael Kellett]

On 05/10/2019 18:31, Jeff Layman wrote:

On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

My guess is that they are a last minute EMC measure - possibly useless
but that wouldn't be the first time.
Can you measure the density ?

MK

--
This email has been checked for viruses by AVG.
https://www.avg.com

 

Jeff Layman <jmlayman@invalid.invalid> wrote in
news:qnajj7$jnu$1@dont-email.me:

Any idea what these "components" are for, above and below the
dashcam lens? I have removed the upper one from the circuit board;
both are held to the board by double-sided sticky foam, and have
another small pad on top.

Both appear to be made of mild steel (they are strongly attracted
to a magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a
couple of years ago. Luckily I needed the box it was in for
something else, and when I went check found the front cover of the
dashcam had been lifted completely off - LiPo batteries, eh?!

Mass dampeners to steady the camera assembly into sinosoidal
motions so the motion compensation has less to do.

Seems like a fail idea.

I am a rubber baby buggy bumpers guy or full suspension. I always
liked the steel wire rope springs used at the base of military racks.

 

[Jeff Layman]

On 06/10/19 09:35, Jan Panteltje wrote:

On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened Jeff Layman
jmlayman@invalid.invalid> wrote in <qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

I've just looked through at least half-a-dozen teardowns on YouTube, but
nothing even vaguely resembling those pieces of steel appeared in any of
them.

If it is just steel could it be just vibration damping weights?

I think that's what the consensus here is - something for damping down
excessive movement.

--

Jeff

 

[Jeff Layman]

On 06/10/19 10:48, Michael Kellett wrote:

On 05/10/2019 18:31, Jeff Layman wrote:
On 05/10/19 18:23, Jeff Layman wrote:
Any idea what these "components" are for, above and below the dashcam
lens? I have removed the upper one from the circuit board; both are held
to the board by double-sided sticky foam, and have another small pad
on top.

Both appear to be made of mild steel (they are strongly attracted to a
magnet), and are about 27 x 8 x 3 mm in size.

https://ibb.co/TkTSmF2

The dashcam never worked properly, and I put it in storage a couple of
years ago. Luckily I needed the box it was in for something else, and
when I went check found the front cover of the dashcam had been lifted
completely off - LiPo batteries, eh?!

I should have made clear that there was no electrical connection
involved - it just looks from the photo that the wires might have been
connected. They weren't.

My guess is that they are a last minute EMC measure - possibly useless
but that wouldn't be the first time.
Can you measure the density ?

I've no way of measuring the density, but the material looks like it was
cut to size with a guillotine. Also, I left it partially submerged in
water overnight and rust had already started to form. Both of those
point to it being mild steel.

--

Jeff

 

Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> wrote in
news:qnd6na$o9u$1@dont-email.me:

On a sunny day (Sun, 6 Oct 2019 17:19:12 +0100) it happened Jeff
Layman <jmlayman@invalid.invalid> wrote in
qnd461$8va$1@dont-email.me>:

On 06/10/19 09:35, Jan Panteltje wrote:
On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened Jeff
Layman <jmlayman@invalid.invalid> wrote in
qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube.
It'll be interesting to see if those show anything similar,
and, if so, what comments have been made about them.

I've just looked through at least half-a-dozen teardowns on
YouTube, but nothing even vaguely resembling those pieces of
steel appeared in any of them.

If it is just steel could it be just vibration damping weights?

I think that's what the consensus here is - something for damping
down excessive movement.

After posting that it occured to me that it could also be used
together with some mounting bracket with magnets.

Yeah, and if you were someone whom actually read threads, you would
have noticed that it was already discussed with the device owner.

 

On Sun, 06 Oct 2019 17:02:33 GMT, Jan Panteltje
<pNaOnStPeAlMtje@yahoo.com> wrote:

On a sunny day (Sun, 6 Oct 2019 17:19:12 +0100) it happened Jeff Layman
jmlayman@invalid.invalid> wrote in <qnd461$8va$1@dont-email.me>:

On 06/10/19 09:35, Jan Panteltje wrote:
On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened Jeff Layman
jmlayman@invalid.invalid> wrote in <qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

I've just looked through at least half-a-dozen teardowns on YouTube, but
nothing even vaguely resembling those pieces of steel appeared in any of
them.

If it is just steel could it be just vibration damping weights?

I think that's what the consensus here is - something for damping down
excessive movement.

After posting that it occured to me that it could also be used
together with some mounting bracket with magnets.

Or foam tape to add a little damping.



--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Jan Panteltje]

On a sunny day (Sun, 6 Oct 2019 17:19:12 +0100) it happened Jeff Layman
<jmlayman@invalid.invalid> wrote in <qnd461$8va$1@dont-email.me>:

On 06/10/19 09:35, Jan Panteltje wrote:
On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened Jeff Layman
jmlayman@invalid.invalid> wrote in <qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube. It'll be
interesting to see if those show anything similar, and, if so, what
comments have been made about them.

I've just looked through at least half-a-dozen teardowns on YouTube, but
nothing even vaguely resembling those pieces of steel appeared in any of
them.

If it is just steel could it be just vibration damping weights?

I think that's what the consensus here is - something for damping down
excessive movement.

After posting that it occured to me that it could also be used
together with some mounting bracket with magnets.

 

jlarkin@highlandsniptechnology.com wrote in
newsr7kpelrlocn2f8bsvmgltqtvisqtnu7nf@4ax.com:

On Sun, 06 Oct 2019 17:02:33 GMT, Jan Panteltje
pNaOnStPeAlMtje@yahoo.com> wrote:

On a sunny day (Sun, 6 Oct 2019 17:19:12 +0100) it happened Jeff
Layman <jmlayman@invalid.invalid> wrote in
qnd461$8va$1@dont-email.me>:

On 06/10/19 09:35, Jan Panteltje wrote:
On a sunny day (Sun, 6 Oct 2019 08:39:11 +0100) it happened
Jeff Layman <jmlayman@invalid.invalid> wrote in
qnc5mv$11i$1@dont-email.me>:

On 06/10/19 08:06, Jeff Layman wrote:

I'm pretty certain there are dsahcam breakdowns on YouTube.
It'll be interesting to see if those show anything similar,
and, if so, what comments have been made about them.

I've just looked through at least half-a-dozen teardowns on
YouTube, but nothing even vaguely resembling those pieces of
steel appeared in any of them.

If it is just steel could it be just vibration damping weights?

I think that's what the consensus here is - something for damping
down excessive movement.

After posting that it occured to me that it could also be used
together with some mounting bracket with magnets.

Or foam tape to add a little damping.

I think the consideration is that the camera has a built in
mechanical motion compensation mechanism. They have limits.
So your foam would not work because the light weight plastic and PCB
assy would still have high slew rate jostles. I think the weights
along with say foam as you suggest, would make those jostles more
sinusoidal by sinking into the foam more deeply, all the while
slowing the collision force motion.

I think gummy rubber would do it and do so without damping weight.
So gummy rubber mounts in the corners of the assembly to outer shell
mount.

Full rubber band suspension in a big dashboard consuming box would
work best. ;-)