Re: RL 125 CFM with new filter
Hi Ariel,
Yes, I drilled about the size hole needed by the probe near the DC. Tied the probe with twist tie so I do not have to hold it. There is no display in probe and results show is blue tooth app. It made it really easy to just open close various gates to take readings.
I will check out what you have but it appears there is a technical threshold with this thermal type speed probes and pretty much 30m/s is what I see.
I have not investigated to find out how the ones able to measure higher work. I know I am not going to spend more than a ~$100 that this probe cost.
Imran
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On Jan 24, 2021, at 11:26 AM, ahazi <ariel.hazi@...> wrote: ?On Fri, Jan 22, 2021 at 04:25 AM, imranindiana wrote:
People who have anemometers, is yours capable of higher air speed measurements? If so, I be interested in model details. The ones I have found are near $800.
I have ?which is enough for me to get an idea of air flows. I do not have an RL125, I have an Oneida 3HP cyclone. Imran, do you put your anemometer inside the ducting pipes/hoses through a hall to get your measurements? Ariel
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Thanks Matt? I¡¯ve checked the literature on the apple series 6 watches and can¡¯t find anything about fall detection? Is it there and apple isn¡¯t promoting it? Thanks? Bill B¨¦langer?
I'm a new member who is among the many to take advantage of the pandemic to begin building my long-imagined hobby shop. I've learned a lot already from this group, but I did not think I would have the opportunity to contribute anything useful for a while ¨C that is until this unexpected discussion on fall detection using smart devices. As it turns out, my day job is at Stanford University where my research focus is on medical applications of wearables. ? Another nice feature of many smartwatches is the ability to make a call using voice commands if you happen to find yourself trapped under a stack of lumber and you cannot get to your phone. Still, this does nothing if you are unconscious or confused from the fall. In that situation, Scott is correct about the limitations of smartphone apps for fall detection. You cannot rely on them since apps running in the background can be frozen without notifying you. You can try to get around this by closing the app and reopening it each time you enter the shop, but this introduces too much human error and it may still be frozen after several hours in the shop. The Apple Watch fall detection is different. It runs continuously in the background and it does not freeze or shut down, unless you disable the feature or drain the battery. Unfortunately, no other current smart watch can reliably provide this same feature. The only other reliable fall alert devices available at this time are single function dongles or wristbands geared toward the elderly with mobility limitations and they require a monthly service fee.? ? Fall detection and other medical uses of smartwatches and other wearables are expanding rapidly. All of the manufacturers are trying to maintain/expand market edge so what I say today could change tomorrow. I expect Google and others to provide reliable fall detection in a smartwatch anytime within the next 2-3 years.? ? On a related topic, I am considering connecting a Bluetooth switch to my dust collection system to start/stop from my smartwatch. If that works out, I¡¯ll have a 2nd?opportunity to post something useful to this forum. Until then, I¡¯ll continue lurking in the shadows.? ? Matt
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Re: RL 125 CFM with new filter
On Fri, Jan 22, 2021 at 04:25 AM, imranindiana wrote:
People who have anemometers, is yours capable of higher air speed measurements? If so, I be interested in model details. The ones I have found are near $800.
I have ?which is enough for me to get an idea of air flows. I do not have an RL125, I have an Oneida 3HP cyclone. Imran, do you put your anemometer inside the ducting pipes/hoses through a hall to get your measurements? Ariel
|
I'm a new member who is among the many to take advantage of the pandemic to begin building my long-imagined hobby shop. I've learned a lot already from this group, but I did not think I would have the opportunity to contribute anything useful for a while ¨C that is until this unexpected discussion on fall detection using smart devices. As it turns out, my day job is at Stanford University where my research focus is on medical applications of wearables. ? Another nice feature of many smartwatches is the ability to make a call using voice commands if you happen to find yourself trapped under a stack of lumber and you cannot get to your phone. Still, this does nothing if you are unconscious or confused from the fall. In that situation, Scott is correct about the limitations of smartphone apps for fall detection. You cannot rely on them since apps running in the background can be frozen without notifying you. You can try to get around this by closing the app and reopening it each time you enter the shop, but this introduces too much human error and it may still be frozen after several hours in the shop. The Apple Watch fall detection is different. It runs continuously in the background and it does not freeze or shut down, unless you disable the feature or drain the battery. Unfortunately, no other current smart watch can reliably provide this same feature. The only other reliable fall alert devices available at this time are single function dongles or wristbands geared toward the elderly with mobility limitations and they require a monthly service fee.? ? Fall detection and other medical uses of smartwatches and other wearables are expanding rapidly. All of the manufacturers are trying to maintain/expand market edge so what I say today could change tomorrow. I expect Google and others to provide reliable fall detection in a smartwatch anytime within the next 2-3 years.? ? On a related topic, I am considering connecting a Bluetooth switch to my dust collection system to start/stop from my smartwatch. If that works out, I¡¯ll have a 2nd?opportunity to post something useful to this forum. Until then, I¡¯ll continue lurking in the shadows.? ? Matt
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Re: AD941 vs. Baileigh JP-1898-NC
Its an L bracket with a block of wood to off set the weight so when lifted with the tables up with a pallet jack it tilts back slightly and is easier and mor balanced to move around.
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On Jan 23, 2021, at 9:33 PM, David Davies <myfinishingtouch@...> wrote:
? Mark, ? ?What's going on with the tab you are using under the pallet jack?? I just?have a bolt there but your solution looks better. Thanks, Dave Still sticks out about 5¡± but not sure you would even want the jp closer to the wall anyways?
<image0.jpeg> <image1.jpeg> ?Congrats PK on the new toy...look forward to those videos...was told yesterday by Felder am looking at July or August for delivery ;(.? Well, that at least gives me time to think about how to get those machines off the crates and onto the new shop floor.
-- Dave & Marie Davies
318-219-7868
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Re: AD941 vs. Baileigh JP-1898-NC
Mark, ? ?What's going on with the tab you are using under the pallet jack?? I just?have a bolt there but your solution looks better. Thanks, Dave
Still sticks out about 5¡± but not sure you would even want the jp closer to the wall anyways?
  ?Congrats PK on the new toy...look forward to those videos...was told yesterday by Felder am looking at July or August for delivery ;(.? Well, that at least gives me time to think about how to get those machines off the crates and onto the new shop floor.
-- Dave & Marie Davies
318-219-7868
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On Jan 23, 2021, at 8:43 PM, David <david.hawxhurst@...> wrote: ? [Edited Message Follows]
On Sat, Jan 23, 2021 at 08:15 PM, david@... wrote:
Probably find something here. ?I can¡¯t tell what one end of the elbow is. ? Please sign your posts with your name.
?
David Best
https://www.instagram.com/davidpbest/
[Edited Message Follows]
Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on . Did try a google search for push to connect plug-in elbow. only thing that really show ups is but you need to buy 10 or some lawn and pest company agin you have to buy 10. <IMG_1735.jpg>
?one end is for the 1/4" tubing and the other end fits a push to connect fitting. McMaster was were I first looked. r/ David
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On Sat, Jan 23, 2021 at 08:15 PM, david@... wrote:
Probably find something here. ?I can¡¯t tell what one end of the elbow is. ? Please sign your posts with your name.
?
David Best
https://www.instagram.com/davidpbest/
[Edited Message Follows]
Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on . Did try a google search for push to connect plug-in elbow. only thing that really show ups is but you need to buy 10 or some lawn and pest company agin you have to buy 10. <IMG_1735.jpg>
?one end is for the 1/4" tubing and the other end fits a push to connect fitting. McMaster was were I first looked. r/ David
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On Sat, Jan 23, 2021 at 7:18 PM David Davies via <myfinishingtouch= [email protected]> wrote: I used to get parts from Franklin Electrofluid but something seems odd with their site.? I wonder if they are still in business?
Probably find something here.? I can¡¯t tell what one end of the elbow is. ? Please sign your posts with your name.
[Edited Message Follows]
Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on . Did try a google search for push to connect plug-in elbow. only thing that really show ups is but you need to buy 10 or some lawn and pest company agin you have to buy 10. <IMG_1735.jpg>
--
Dave & Marie Davies
318-219-7868
-- Dave & Marie Davies
318-219-7868
|
I used to get parts from Franklin Electrofluid but something seems odd with their site.? I wonder if they are still in business?
Probably find something here.? I can¡¯t tell what one end of the elbow is. ? Please sign your posts with your name.
[Edited Message Follows]
Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on . Did try a google search for push to connect plug-in elbow. only thing that really show ups is but you need to buy 10 or some lawn and pest company agin you have to buy 10. <IMG_1735.jpg>
-- Dave & Marie Davies
318-219-7868
|
Probably find something here. ?I can¡¯t tell what one end of the elbow is. ? Please sign your posts with your name.
David Best
https://www.instagram.com/davidpbest/
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[Edited Message Follows]
Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on . Did try a google search for push to connect plug-in elbow. only thing that really show ups is but you need to buy 10 or some lawn and pest company agin you have to buy 10. <IMG_1735.jpg>
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Does anyone know where to get one of these. Prefer it in stainless. 1/4" tubing. Can not seem to find it on automationdirect.com. Did try a google search for push to connect plug-in elbow. only thing that really show ups is pneumaticplus.com but you need to buy 10 or some lawn and pest company agin you have to buy 10. 
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Re: AD941 vs. Baileigh JP-1898-NC
Still sticks out about 5¡± but not sure you would even want the jp closer to the wall anyways?
 
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On Jan 23, 2021, at 3:46 PM, KRPatel via groups.io <kamalsonal@...> wrote:
?Congrats PK on the new toy...look forward to those videos...was told yesterday by Felder am looking at July or August for delivery ;(.? Well, that at least gives me time to think about how to get those machines off the crates and onto the new shop floor.
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Re: AD941 vs. Baileigh JP-1898-NC
Congrats PK on the new toy...look forward to those videos...was told yesterday by Felder am looking at July or August for delivery ;(.? Well, that at least gives me time to think about how to get those machines off the crates and onto the new shop floor.
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Jason,
Thanks for sharing, what a sobering read that first post was!!! I hope Craig comes out of this okay, sounds like he's already on track to.
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I don't honestly know if I'd want to trust my health to any of them.? Android really wants to freeze background apps that you don't interact with so it can save power, and over time there's been a sort of arms race between app developers and the core of Android.? A fall app that isn't actually running when you fall isn't going to do you any good.? Just because it works today doesn't mean that it's going to work next week, and it really doesn't mean that it's going to work 6 months from now.? Honestly, IOS isn't really any better here.? They're both hyperaggressive about killing off background services; that's pretty much the only reason that your battery lasts more than a few hours.? You're almost certainly better off with a watch that advertises this as one of its core features.
I found 3.? The one below is $20 and rated somewhat higher than the free ones.
--
Jerry P
Life is what happens to you when you're making other plans.
"You can observe a lot by watching."? Yogi Berra
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Re: AD941 vs. Baileigh JP-1898-NC
The Suvamatic jointer guard is a wonderful add-on with its ability to "rise over" or "slide along", and I seriously considered it, but it protrudes 225 mm (~9 in) minimum and could protrude up to 550 mm (~21.5 in) from the side of the machine. In my tiny shop space I couldn't see walking around that bump constantly, notwithstanding the $2,000+ price tag.
--
- Dave Rossetti, Santa Fe
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I found 3.? The one below is $20 and rated somewhat higher than the free ones.
https://play.google.com/store/apps/details?id=com.fall_detection
--
Jerry P
Life is what happens to you when you're making other plans.
"You can observe a lot by watching."? Yogi Berra
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Re: RL 125 CFM with new filter
There is really no point in measuring less than 30 hz and you don't need to slow the motor to the point where the fan isn't cooling the motor.? There should be a function for current draw.? My vfd is at least 15 years? and has more functions than I ever use.?
Dave
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Thanks Dave. I caution I read with slowing motor (not designed for that purpose) is that fan slows with it. I think that really becomes an issue if speed is substantially reduced. Unfortunately, my VFD (old) does not display current; I will double
check the manual.
Thanks again for the ideas. I will work on these on Monday.
Imran
On Jan 23, 2021, at 12:45 PM, David Kumm <davekumm@...> wrote:
?
Slowing the motor reduces the amp draw so no issues with the motor.? you can graph a system curve that way and see if increasing the Hz to 65 yields any additional cfm if your meter can stand it.? You can also adjust the gates to match the cfm with the readings
of the slowed motor and compare.? The vfd will measure amp draw so you don't need a meter.? I watch the amp draw more than the hz on my three phase collector.?? When you amps go down to a certain point with certain ports open, I know the filters need blowing
out.? Dave
David,
Thanks for the idea. I can measure current draw but your response me think that maybe I can run the motor slower (since i run it with VFD) just for a short time to see if I can get the CFM in meter range. As our resident motor expert, you think
it would be okay to do so? I am hoping that it would only take a bit 80-90% of full speed. It is 4KW, 3 phase motor.
Imran
On Jan 23, 2021, at 12:14 PM, David Kumm <davekumm@...> wrote:
?
Imran, can you measure the amp draw with all gates open and compare that to the cfm reading ?? Then close various gates or partially and match the amp draw with the new cfm readings to get a rough fan curve.? Down the road you can compare amp readings and plot
them against your prior curve to see how the filter affects the cfm.? Dave
Does anyone have an idea how much CFM will be reduced when new filter gets dirty? I have few days to return the anemometer and don't have much planned work.
I am curious what the collective thinks about making just a comparative readings with partially closed gates. Just looking for a solution to determine the status of the filter in future.
BTW, I failed to report that the light (for difference in pressure) never turned off with new filter installed. I may have to open the sensor like someone else did here.
Finally, Bill is correct, the differential pressure sensor compares negative pressure below the filter (dirty side) with ambient.
Imran
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Does anyone know the name of the Android fall alert app?? My search in Google Play Store twice yielded an old investment book by Benjamin Graham which must discuss stocks dropping, a whole nuther kind of fall.
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imran
Bill Belanger
David
David P. Best
Dave Rossetti
Jim Fleming