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Results 721 to 735 of 782
Thread: Friday lunch prattle
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11th February 2022, 04:45 PM #721
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11th February 2022, 06:54 PM #722Cheers, Bob the labrat
Measure once and.... the phone rings!
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11th February 2022, 07:41 PM #723
.
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 1,174
I've got one of those dust monitors and have had it for almost 4 years.
I did a review of it back when I first got it
https://www.woodworkforums.com/f200/...10#post2091861
The review is post # 143 in that thread.
Since then, apart from when I visit mens sheds where I bring it along as an example of a budget level monitor, it lives in our kitchen where it monitors SWMBO cooking dust.
A couple of follow up things with those meters.
The little button on the side that toggles the 2 display formats is quite fragile and liable to just come away when being pushed normally. If you can find the button, it can be soldered back on. If not, any momentary switch or even a bit of metal across the soldered terminals will switch the display. I thought this was just me being ham fisted but its happened to at least two others that I know about.
They don't bounce very well. A mate of mine had his for about 3 weeks and he dropped it from bench height onto a concrete floor and it stopped working unfortunately he had thrown it away and I was not able to look at where it might have been damaged.
Mine ran normally - like I said mostly in the kitchen - and then I took it down the shed for a test run and notice it did not go above about 10 µg/m^3 even though my other meter was reading > 40 µg/m^3. I had a close look and found a tiny spiders web blocking the fan air intake, After clearing that it ran normally.
The other direction these sensors can give false readings at is around zero, ie it doesn't go to zero.
This can happen if it is subjected to high levels of dust whereby the internals of the sensor is contaminated with dust. Every now and then you should put it in a closed room (no air drafts or currents) or in a box and check that it goes to zero. If not, it probably has become contaminated. Blowing very gently into the fan intake may clear the dust but in the case of one the similar Plantower dust sensors in a home made meter I could not clear it and had to replace the sensor.
The particle monitor mentioned in the link above uses a sensor made by a company called Plantower and they claim their sensors have a manufacturers stated "mean lifetime between failures" of about 3 years of continuous use. This means the power to the sensor is left on - eventually I believe the small laser inside eventually dies. I have 5 particle counters with planter sensors and 3 have been continuous running for about 4 years and the only one that has failed was the one that was exposed to too much dust.
Despite it's issues I reckon they are still very useful an certainly better than nothing. If you consistently see >100ug/m^3 on these meters (50 if you are senior with health issues) I would definitely be doing something about it.
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11th February 2022, 07:54 PM #724
Intermediate Member
- Join Date
- Jan 2009
- Location
- Brisbane
- Posts
- 2
Outside of course :P, that sheds mine
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13th February 2022, 11:53 AM #725
Senior Member
- Join Date
- Sep 2019
- Location
- Somerville
- Age
- 50
- Posts
- 90
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18th February 2022, 11:14 AM #726
Is there a Friday Chat on today, an are ring ins welcome??.
Cheers Matt.
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18th February 2022, 02:45 PM #727
Once again, the recipe for workbench/toolhandle finish as passed down to me from my Grandfather. Also works on ironwork, best applied while the metal is hot (not red hot)
1 ltr of Pure Gum Turpentine
1 ltr of BLO
Grate up a block of beeswax about as big as a bar of soap and dissolve it in the mix. Keep adding beeswax until saturated.
Stir/shake vigorously before applying. Apply thickly, wipe off/spread any excess after 24 hours. Reapply as needed
Tip for a happy life - If you take the grater from the kitchen buy her a new one. Keep the old one in the shed, it will come in handy.I got sick of sitting around doing nothing - so I took up meditation.
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26th February 2022, 10:57 AM #728
BooY, we noticed that you were logged in to the zoom meeting yesterday but there was a symbol instead of video of you and we could not hear you. Could you hear and see us?
Zoom can take a bit of fiddling to get going right.Cheers, Bob the labrat
Measure once and.... the phone rings!
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26th February 2022, 01:23 PM #729
Intermediate Member
- Join Date
- Jan 2009
- Location
- Brisbane
- Posts
- 2
Hey, yeh sorry about that kids played with the mic and had it flicked off to the internal monitor instead of the proper mic and didnt work it out until i went into another zoom later snd thry could barely hear me. I didn't have the webcam on me for the comp which is why it was an icon. I could hear and see you guys fine.
I came in late as I was trying to find the room details as there's few different ones on the 1st few pages
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26th February 2022, 10:38 PM #730
Hi all, I have made a post that can hopefully be made into a sticky with the Friday and Sunday online meetings links in it so that they are easy to find instead of being hidden in long threads, This might help prospective new attendees find the right link to log into as well.
https://www.woodworkforums.com/f303/...46#post2272714I got sick of sitting around doing nothing - so I took up meditation.
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18th March 2022, 09:02 AM #731
I won't be able to participate today.
I have another appointment.I got sick of sitting around doing nothing - so I took up meditation.
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24th March 2022, 08:19 PM #732
Will anyone be at the prattle this week?
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Will anyone be at the prattle this week?Cheers, Bob the labrat
Measure once and.... the phone rings!
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24th March 2022, 08:34 PM #733
That's a big "maybe" for me. I'll try to be there but no guarantees.
I got sick of sitting around doing nothing - so I took up meditation.
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24th March 2022, 08:42 PM #734
Should be there.
I am learning, slowley.
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24th March 2022, 10:18 PM #735
Sorry, Working.
Regards
PaulBushmiller;
"Power tends to corrupt. Absolute power corrupts, absolutely!"
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