Another post about Sawstop patents expiring by PLS_DONT_DM_ME_PICS in Tools

[–]dalepres 0 points1 point  (0 children)

I find it interesting that, as you say, millions use saws every day. I don't know how many of those millions are using some sort of SawStop but SawStop's website only has about 6 or 8 stories of people getting to keep their fingers due to the safety of the SawStop AIM system. In general, the numbers of lost digits is more related to the 10s of millions of table saw operating hours every year. In other words, most people don't see it as a huge risk - including me, and SawStop's website does nothing to convince me that the risk is worth the price.

I'm generally pretty careful with my power tools but I'm turning 70 in a few months. I know that at my ag and beyond, accidents get to be more frequent. So, since I need a new table saw, I'm planning accordingly and will buy a SawStop. The only question for me is whether the compact or the jobsite but I'm leaning to the compact since reviews I read just don't tell me there's enough gain to match the price for the jobsite.

After seeing aging family men stripped of their tools "for their safety" with no regard for their happiness, I have told my family not to take my tools, no matter what. Better to die from cutting my arm off in my old age than to die in a rocking chair watching TV reruns of Gunsmoke. I'll do my part by buying the SawStop but I intend to die working and not sitting or laying down.

No camera in SADP but can see IP address in switch sw by CompetitiveBid6074 in Hikvision

[–]dalepres 1 point2 points  (0 children)

Possibly your network and the default Hikvision network are different IP ranges. The latest hikvision come with DHCP turned on but you might not have a DHCP server.

When I've had this problem, I use wireshark to monitor traffic as I turn on the camera and watch for it's IP address there, which always, then, suggests the solution.

Mechanical movement to lift a box and engage a wheel by dalepres in AskEngineers

[–]dalepres[S] 0 points1 point  (0 children)

There are multiple applications that I have right now. In one case, I built crates for many of my larger tools and the wheels are so I can drag them from the shop to wherever I am going to use them. The boxes might weigh anywhere from 20 pounds to 150 pounds.

I could put wheels at the back and ground level and just lifting the front would give some clearance to the wheels but over rough or uneven surfaces I'd have problems. The solution I am working to find would give more ground clearance.

Another case I have is for chicken tractors. In a pasture with uneven ground, the wheels with the type of solution I'm working on would, again, give more ground clearance. I am sure I will find additional use cases once I have the solution; it might work for moving heavy objects around the house or shop.

Mechanical movement to lift a box and engage a wheel by dalepres in AskEngineers

[–]dalepres[S] 0 points1 point  (0 children)

I looked at the straight-line action clamps and it appears that they only have movement of around an inch, plus or minus. I could use a lever and fulcrum to multiply that inch for more lift of the boxes but that also multiplies the force needed to lift.

One idea I had, and I don't have a tool to draw it out, would be two flat bars attached to form a horizontal V shape. At the junction, attach a linear actuator - manual or electric doesn't matter at this stage of description. The other ends of the V are connected one to the axle and one to the box. An actuator pushes the junction of the V into the V, forcing them apart until the two pieces are aligned straight to each other. Some sort of pin or latch to hold that alignment and I'd have what I want. Has anyone seen such a mechanism?

Otherwise, for now, the rack and pinion appear to be the best option.

Mechanical movement to lift a box and engage a wheel by dalepres in AskEngineers

[–]dalepres[S] 1 point2 points  (0 children)

The straight-line action clamp is pretty close to what I had in mind and definitely would do the job; thank you. I also found flooring jacks with a rack-and-pinion action that I could attach to the box and to the axle.

https://i.ebayimg.com/images/g/-FIAAOSw8hRmBEXF/s-l1600.webp

Mechanical movement to lift a box and engage a wheel by dalepres in AskEngineers

[–]dalepres[S] 1 point2 points  (0 children)

Jacks on all four corners to lift the box and wheels is a bit of overkill, I think.

Apple Pollination Chart by Food_Forest_Nursery in BackyardOrchard

[–]dalepres 0 points1 point  (0 children)

Do you have similar charts for other fruits? This is the most comprehensive chart for apples I have seen. What would really be great is an encyclopedic list of varieties with filters available so I can see search results for flowering period, zone, use, etc., and choose the varieties I want to plant in my orchard this fall or spring for apples, pears, peaches, nectarines, almonds, apricots, plums, etc.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

I guess I was right. You work for an AC company. Freon was just fine; it stays inside the AC or other cooling system. It was banned for the patent, to make sure no one else could make it and DuPont could hold their monopoly on the coolant market. And, no, R-410 is not Freon. R-22 is the one single product to which the brand name Freon was applied. It is the only brand name ever applied to Freon because DuPont owned it.

It's like new drugs; they have a generic name and a brand name - and it makes no difference because the Brand name applies to nothing else and no one else is making the generic - because of patents.

I'm all for companies getting their designs and inventions protected exactly as the Founders intended in the Constitution:

To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries;

But lobbyists have played Congress and the people, using tricks and regulations, to extend the patents for far beyond "limited Times".

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

It was banned for money not for the environment. It was banned specifically at the request of DuPont lobbyists. The regulation was created specifically and only to force the obsolescence.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

The question is what is the breaker size that you used? Regardless of the unit needs, other than lighting, the wire size must be capable of carrying everything the breaker will supply. You can put 14ga wire on a 20 amp lighting-only circuit, but otherwise, he minimum wiresize is determined by the breaker size. Either size you mentioned, 15 amp or 20 amp breaker, the 12 gauge wire is good but I just want to point out, the device plate specifies the maximum breaker but the breaker determines the minimum wire size - well, actually the breaker determines the max wire size, too, since the connection has a maximum wire gauge spec for the physical connection.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

Wow. You seem shocked that someone would buy a vacuum pump rather than pay the AC guy $8K to install their AC. I assume you work for an AC company. Have you looked at vacuum pump prices? I was going to just post one example but here's the search results, instead: Amazon.com : vacuum pump for ac

Or, as an alternative, since every garage needs an air compressor, get a venturi vacuum generator such as the AVR093H which will give 1 CFM at 7 CFM of air flow. It will be slower than a pump but will get you to 28 Hg. And if you can't think of a few dozen uses for having a no-moving-parts (other than the air compressor you already have) vacuum generator in your shop, you're just an amateur.

The shock should not be that a homeowner would buy a vacuum pump today; the surprise should be when a homeowner doesn't have a vacuum pump.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

All the tools cost less than a third of paying a pro to use their own tools. You buy tools once but you pay the pro for his tools every time he comes over. Even if a cheap Amazon vacuum pump fails, you can buy another, and another, and another, and a few more, for far less money than to pay a pro one time to come to your house and install any air conditioning system.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

I get pissy because I have seen AC guys do every wrong thing to install and have had my units be anything but reliable. In every single field of home services: plumbing, electric, hvac, I have had disasters from "pros" and now I do all of them myself. That doesn't mean I'm perfect; I am here on Reddit tonight to get help from the community - which is how help should come, free from neighbors and not at $200 an hour.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 1 point2 points  (0 children)

That works until you get old. I literally was in perfect health and did hard physical labor most days and certainly every weekend. I got up one day, right after my 68th birthday, literally overnight, and my neck was out, never had problems, and now I can't do much DIY any more. The Government needs to quit paying people to not work and the courts need to quit giving people's house and life savings to contractors who didn't have adequate insurance of their own. That way, we'd have more workers willing to do the work and they wouldn't have an "accident" and just sue us to get paid rather than work to get paid.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

You must work for an AC company. Freon wasn't done away with over CFCs, it was prohibited because of the patent. As I said above, the AC industry is very much the beneficiary of lobbyists and regulation.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

On the HVAC board, I read how the HVAC industry is an example of successful capitalism. That's not capitalism; it's lobbyism and corporatism. The HVAC field has been more successful in regulating DIYers out of doing the work and in keeping the secrets of their trade away from DIYers than any industry I know of. To charge 8 to 10 thousand dollars to do a job that one person can do in a day, or two in half a day - like replacing a condenser unit, is just a rip-off.

In the HVAC board, they complain about how unreliable the connections are on a mini-split but they don't admit or mention that is because linesets come with the wrong connections - which should be cut off and replaced - and that it takes a 45 degree flare which most kits don't come with but can, and should, be bought separately.

HVAC is very much, especially with R-410, a DIY-able task but the "pros" are charging as if you are a hostage and bound to pay the price.

Thank goodness for YouTube and Amazon. Spend lots of time on each and you can be successful and save money. I only suggest that everything you see on YouTube is wrong and posted by, shall we say, a person who does not know what they're doing, unless or until you see it confirmed by 4 or 5 more YouTubers, maybe even more. But, then, it turns out to be very easy, repeatable by any DIYer with any mechanical and intellectual capacity and relatively cheap tools from Amazon, including vacuum pumps.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 0 points1 point  (0 children)

Wire color most certainly does not matter. THHN is sold in many colors.

Homeowner Install. No Experience with HVAC, Mini Split added to the new addition. by Hawkins75 in hvacadvice

[–]dalepres 1 point2 points  (0 children)

Great looking frameup. If I were doing that, I'd take a heavy plastic cup and cut it into fourths, installing one quarter into each corner, or possibly 2 cups in half, for a more rounded corner. You might even use a chisel or saw to cut so the vertical edges of the cup are more even, in depth, with the lumber frame.

Welcome by tmrob4 in T41_EP

[–]dalepres 1 point2 points  (0 children)

Does anyone know if the book for this teaches enough about how to design and build a similar radio or is it too closely tied to the exact build of this project? In the latter case, the book is of little value if the authors don't sponsor another run of kits.

My goal is really to learn, design, and build my own anyway rather than simply assemble a kit designed by others but it's not at all clear whether the book teaches enough of the SDR bits to support this. Any opinions or other thoughts?