|
Post by GTCGreg on Feb 23, 2017 15:13:25 GMT
there are other reasons to disallow all watches around the MRI machine. a person I knew worked in security back in the days of tape storage, and they had a no watches policy around the bulk tape eraser. she forgot one day, and it did interesting things to the watch. hospitals are in an interesting situation - their patients are usually not as robust as the average person, so a shock is more likely to be fatal - but loss of power to a piece of equipment is also more likely to be fatal. so they play a juggling game to try to make the system as idiot resistant as humanly possible. in our standard installation, the ground pin of the receptacle is at the bottom. it isn't mandatory - just custom. one inspector once told me that the theory was that if the weight of the cord pulls the plug out, the ground pin will be the last to break contact. in hospitals, it is mandatory to have the ground pin at the top - the official reasoning is that if something drops down and hits the plug, there is one last chance that it will hit the ground pin and bounce to the "safe" side, whereas if the plug is partially out, and it slides down against the blades, it will probably hit the hot blade cause a short. Another concern in hospitals is that many patients are directly connected to electrical equipment, some invasively. It is in these locations, (ICU, CCU, OR) that they use isolated power systems.
|
|
|
Post by the light works on Feb 23, 2017 15:29:50 GMT
there are other reasons to disallow all watches around the MRI machine. a person I knew worked in security back in the days of tape storage, and they had a no watches policy around the bulk tape eraser. she forgot one day, and it did interesting things to the watch. hospitals are in an interesting situation - their patients are usually not as robust as the average person, so a shock is more likely to be fatal - but loss of power to a piece of equipment is also more likely to be fatal. so they play a juggling game to try to make the system as idiot resistant as humanly possible. in our standard installation, the ground pin of the receptacle is at the bottom. it isn't mandatory - just custom. one inspector once told me that the theory was that if the weight of the cord pulls the plug out, the ground pin will be the last to break contact. in hospitals, it is mandatory to have the ground pin at the top - the official reasoning is that if something drops down and hits the plug, there is one last chance that it will hit the ground pin and bounce to the "safe" side, whereas if the plug is partially out, and it slides down against the blades, it will probably hit the hot blade cause a short. Another concern in hospitals is that many patients are directly connected to electrical equipment, some evasively. It is in these locations, (ICU, CCU, OR) that they use isolated power systems. true, there are also applications where a fault is more likely to result in a shock.
|
|
|
Post by silverdragon on Feb 26, 2017 8:58:40 GMT
I wish to enter a "Honourable mention" here to a tool I have that I didnt know I had such a tool until I investigated. Its a Computer tool known as the Catalyst Control Centre... If you have an ATI Radeon or GeForce or any AMD Graphics card installed, or even AMD chipset for anything "else", you should have one of these "somewhere" in your computer... its a must as a basic tool to go investigate if there are problems. The above is a "Simple" advanced settings, if you go full advanced, "Hydra" advanced, there is twice as much functionality at least and gives you exotic controls to play with... Do NOT attempt this at home until you read the warnings. However. Honourable mention. I have seen a setup where a "wide screen" monitor was turned sideways as part of a multi-screen setup to monitor a web page without the need to scroll that much... as its now at 890degree, its got a long depth length and not much width. Fantastic idea, but how the hell do you do that?. Its not as if all monitors come with a button that flips the display. [ the logistics of making a stand that does that are easy in comparison ] Or so I thought. Until I spot the extras on the screen display control panel that had the magic word "Rotate". Drop down slider, 90, 180, 270, press "go".... I can now admit that I have played with this, because its been a week, and a week is long enough for my Kid to work out how I did that on his computer on his second monitor and set it right?.. He got to use my own setup a few months back and realised how useful a second screen is when your doing graphics work and need two or three pages open at the same time and visible at the same time, instead of flipping back and forward through "windows" on one screen. [rotate 90degree, close program, and run away silently before he got back.... hide and listen to him "WTF??.... who?.. DAD!... ]
|
|
|
Post by GTCGreg on Feb 26, 2017 13:50:07 GMT
I knew about rotating the screen for a number of years now. The only difference is it was my son that tought it to me.
|
|
|
Post by GTCGreg on Feb 26, 2017 14:11:02 GMT
And speaking of a useful computer tool that you may not realize you have, is SNIP.
Just about everyone knows how to use the print screen command to capture what is on your display or alt-print screen to capture just the active window. But if you are using windows 7,8 or 10, there is a much more useful screen capture application that is included. It's called SNIP and it allows you to draw a box around anything on your monitor and copy it to the clipboard. I've found it so useful that I copied it to the taskbar. Just do a search for SNIP on your computer. You'll find it under the desktop applications.
|
|
|
Post by silverdragon on Feb 27, 2017 7:52:14 GMT
And speaking of a useful computer tool that you may not realize you have, is SNIP. Just about everyone knows how to use the print screen command to capture what is on your display or alt-print screen to capture just the active window. But if you are using windows 7,8 or 10, there is a much more useful screen capture application that is included. It's called SNIP and it allows you to draw a box around anything on your monitor and copy it to the clipboard. I've found it so useful that I copied it to the taskbar. Just do a search for SNIP on your computer. You'll find it under the desktop applications. I "Think" I found that already, its this thing, I have jumped from XP to 10, because I use linux and had no need for vista[boil in the bag] longhorn 7/8/8.1[9] Therefore, the new functions of 10 are at last "better" than 8, and there is different functionality, I am busy learning all of it, but I found something like that screen-print that allows you a section of the screen to print already, it may have been that "snip"...
|
|
|
Post by wvengineer on Oct 18, 2020 21:24:36 GMT
Impact wrenches.
We have been using air impact wrenches for many years and I have one I use for tire work with some regularity. However, getting the compressor out whenever I want to do tire work can be a pain.
Has anyone ever used the electric impact wrenches? The idea of the same functionality without the hassle of a compressor is appealing.
Corded or battery? If I go battery, it would be the DeWalt 20V max line since I already have batterieas and chargers for that product line.
|
|
|
Post by the light works on Oct 19, 2020 0:17:50 GMT
Impact wrenches. We have been using air impact wrenches for many years and I have one I use for tire work with some regularity. However, getting the compressor out whenever I want to do tire work can be a pain. Has anyone ever used the electric impact wrenches? The idea of the same functionality without the hassle of a compressor is appealing. Corded or battery? If I go battery, it would be the DeWalt 20V max line since I already have batterieas and chargers for that product line. I know my 18V impact driver is not sufficient to torque my truck wheels properly. though, as I recall, I DID change a car tire with it on the shoulder of the road. - but I told the driver to get the flat fixed and replaced ASAP. I would think if you had a friend you could borrow a cordless from, you could see if it develops the torque you need by cranking something a tight as it will go, and then see of your pneumatic would turn it further. couldn't say about the corded ones - the 3/4" is stuck in reverse, and we didn't have a socket or adapter we could use on the 1/2" ones. I do routinely use my cordless to drive 3" screws and to drive 1/4" lag bolts. - for that matter, if you do a lot of power screwdriver use, a cordless impact gun is a useful tool. its lighter than a cordless drill, and has a better feel when driving - plus has a little bit less chance of stripping screw heads. addendum: I see there is a DeWalt impact wrench rated to 400 foot pounds. - note it is a half inch socket drive rather than a light duty impact gun like mine. looks decent for casual use. it's a thing I've started keeping in mind - if you're going to be running a tool long and hard, get a corded one, because they can run longer without overheating.
|
|
|
Post by GTCGreg on Oct 19, 2020 4:14:08 GMT
Impact wrenches. We have been using air impact wrenches for many years and I have one I use for tire work with some regularity. However, getting the compressor out whenever I want to do tire work can be a pain. Has anyone ever used the electric impact wrenches? The idea of the same functionality without the hassle of a compressor is appealing. Corded or battery? If I go battery, it would be the DeWalt 20V max line since I already have batterieas and chargers for that product line. My son has a Bosch Model HTH182 18Volt which is about the same as the DeWalt. It's rated at 500ft-lbs and I'd say every bit as powerful as my pneumatic. It wasn't cheap. He paid over $200 for it and he works for Bosch and that was with a very deep employee discount. I think it lists for around $500. I have a small 12 Volt Milwaukee impact driver. It works great for doing things like driving in lag bolts but no way would I trust it on lug nuts.
|
|
|
Post by the light works on Oct 19, 2020 14:23:19 GMT
Impact wrenches. We have been using air impact wrenches for many years and I have one I use for tire work with some regularity. However, getting the compressor out whenever I want to do tire work can be a pain. Has anyone ever used the electric impact wrenches? The idea of the same functionality without the hassle of a compressor is appealing. Corded or battery? If I go battery, it would be the DeWalt 20V max line since I already have batterieas and chargers for that product line. My son has a Bosch Model HTH182 18Volt which is about the same as the DeWalt. It's rated at 500ft-lbs and I'd say every bit as powerful as my pneumatic. It wasn't cheap. He paid over $200 for it and he works for Bosch and that was with a very deep employee discount. I think it lists for around $500. I have a small 12 Volt Milwaukee impact driver. It works great for doing things like driving in lag bolts but no way would I trust it on lug nuts. if I were to get a milwaukee, it would come as a bare tool for $199. when I had to retorque my lug nuts saturday, I set them with my 18V impact driver, and then torqued them with a 2' ratchet pro tip: a ratchet is a stronger tool head than a "flex handle" as far as breaking force is concerned.
|
|
|
Post by wvengineer on Mar 5, 2021 1:03:11 GMT
I have a Ryobi Cordless Outdoor tool set. It uses a 40V battery. I amoung the tools I have is a string trimmer. This is a power head and changeable Etools. Since I got this, I have wanted an electric snow blower. Ryobi says they make one, but it never is in stock at Home Depot or online. After a snowstorm earlier this year, I was looking online and came across Hart Tools at Walmart. They are made by the same company as Ryobi. The batteries of course are not compatible, but the Exxpand-It tools are. They do make the snow thrower attachment with the Hart cover, even if they don't make the same thing with Ryobi colors. For $100, I figured I'm not out too much. So about a week after I got it, it snowed again, so perfect time to try it out. Pros: Throws snow! It actually works quite well. It went through 4 inches of snow without any trouble or bogging down. clearing my walk and driveway took 75% of my 5 amp-hr battery, so I still had more juice f i needed it. My 12 year old son was able to use it without too much trouble, so that is good to have him help out. It slides on the ground easily. Cons: Heavy and the balance is really awkward. I could not get the handle to tighten, so that didn't help the awkwardness. It also lacks the ability to change the flow direction. It throws everything in front of you, and not to the side. This adds to the awkwardness at times. It's only 12 inches wide, so you have to take a lot of passes to clear a drive. What I would like to see: The ability to angle the flow of snow to one side or the other as well as straight ahead. Final Verdict: Using this is much less work than shoveling. For the money, it does the job, even with it's shortcomings.
|
|
|
Post by the light works on Mar 5, 2021 1:44:54 GMT
I can see why angling the discharge was more effort than they wanted to put into it. if they'd wanted to be clever, I suppose they could have made it so the whole head rotates to angle the discharge, but that might be awkward to use.
|
|
|
Post by GTCGreg on Mar 5, 2021 6:08:38 GMT
So if it throws the snow in front of you, doesn't the snow keep getting deeper and deeper as you go? Doesn't sound too practical to me.
|
|
|
Post by wvengineer on Mar 5, 2021 12:39:57 GMT
Depends on how you use it. I will shovel a path down the middle of my drive. Then from the middle I use this thing to clear the sides in a feather pattern. For those 2ndary passes, it throws it is off the drive, so I'm not double handling that. It's that first pass where throwing to the side would be helpful.
|
|
|
Post by GTCGreg on Mar 5, 2021 14:59:06 GMT
Depends on how you use it. I will shovel a path down the middle of my drive. Then from the middle I use this thing to clear the sides in a feather pattern. For those 2ndary passes, it throws it is off the drive, so I'm not double handling that. It's that first pass where throwing to the side would be helpful. I have a large two-stage gasoline blower but I thought a smaller battery electric might be nice to have for the lighter snowfalls. Doesn’t sound like this one would work too well for my application. Besides, even in the lighter snowfalls, the street plows leave a good size heavy wet pile at the end of the driveway and that requires the big boy anyway.
|
|
|
Post by the light works on Mar 5, 2021 15:27:00 GMT
I'd be inclined to do a herringbone pattern, assuming it can throw from slightly over half the width of the drive.
of course, since it now only snows, here, enough to need something done with it, about once every ten years, I don't need to bother.
|
|
|
Post by wvengineer on Mar 9, 2021 23:46:11 GMT
The power brush I got does okay with the herringbone setup, still have to shovel the bottom where the plow piles up. At least with the power brush, I am not exhausted by the time I get to the street. They do make battery powered single stage blowers with a steerable chute. Something like that may work better for you Cyber. My problem with those is price. That is most of the cost of a full gas 2 stage blower and a couple hundred more than a gas single stage. I could be talked into one if they had a tool-only version since I already have batteries and chargers. But this setup I can't cost justify. Yes you have the convenience of battery, but man, you are paying for it. Most of the battery powered outdoor tools are cost competitive with their gas counterparts, but the snowblowers are not, at least not yet. www.homedepot.com/p/310155453
|
|
|
Post by kharnynb on Jan 20, 2022 17:37:44 GMT
This summer, the neighbours moved out and we took over the whole house, so I started renovating their old kitchen into our new one. I bought a bunch of ryobi tools from their one-for-all 18 volt series(handcircle, sander etc.) as I was tired of doing a lot of things by handtools.
Have to say, a few decent electric tools really make work a lot easier.
|
|
|
Post by GTCGreg on Jan 20, 2022 19:52:06 GMT
This summer, the neighbours moved out and we took over the whole house, so I started renovating their old kitchen into our new one. I bought a bunch of ryobi tools from their one-for-all 18 volt series(handcircle, sander etc.) as I was tired of doing a lot of things by handtools. Have to say, a few decent electric tools really make work a lot easier. I have a number of the Ryobi 18 V power tools. They have served me well for many years. I especially like the small circular saw.
|
|
|
Post by the light works on Jan 20, 2022 20:07:04 GMT
my dad's first cordless was a Ryobi, back when a 12V tool was a high powered beast.
|
|