I try to keep my daily carry limited to what will fit into my pockets, so I have a very small wallet. No space for all the different cards different places give you. For example, our library gives out a credit card sized customer card with a bar code. I never have it with me, and the librarians are usually happy enough to accept other ID. So far it has meant that I could not use their self-checkout, though. I wondered if the checkout machine would accept a photo of the card on my cell phone. Turns out it does! Wonder if this will work for my co-op card and any other bar coded items as well.
This is all good for convenience, but it also opens up a risk of fraud. Anyone who has taken a picture of my card can go borrow books with it. Or, anyone who has a picture of any number of gift cards that use the same system could get money off those cards. On a less nefarious note, it would also make it easier to share something like a gift card between multiple people, everyone would just need a photo of it.
In the summer our windows are usually open while it is colder outside than in. To find out when to close them I compare the temperature online to the one inside. We have an old mechanical thermometer near our back door, and an electronic thermostat in the living room. I usually check the one near the back door, but recently I have started to check both, and the thermostat was consistently ~2.5C warmer. If that difference were real, I figured that would be enough to notice on the skin as well, but it felt no different. So, I measured the temperatures of both with my IR thermometer.
Turns out the mechanical thermometer was about 2.5C out. And, it had a screw in the back to adjust it, so it shows the correct temperature now.
I have a favourite mechanical pencil with built-in mechanical eraser. I had strapped two separate ones together in university, so when I found them as one unit a few years ago I was pretty excited. The casing broke, and since I doubt I will find another pencil like this in town I figured I would model the casing, make it a bit stronger, and 3D print it.
The model has three little splines cut out of the hole on the picture. I didn’t think the 3D printer would have the resolution to print those, and I was right. Didn’t think that would be a really big deal, it’s plastic, I just cut them out later.
Between this project and the coffee grinder bucket I am wondering how accurate the print process is and where in the process things go wrong. I measured several surfaces and they were all “out” (as in thicker) by about 0.1mm. Not a lot for a model that’s printed for looks, but enough that I had to drill out all the holes on this thing. Easier to fix than if there had not been enough material, but annoying still. I want to find out more about this, so I’ll have to scan, model and print some reference item to get a better understanding. Future project…
For some of the soccer games I play in we need to set up the corner flags. They have flimsy plastic pies as poles, and it is hard to get them into the ground. So, I made some metal pins with an edge to step on to make it easier.
All I had was about 10g (~1/8in) steel, so they ended up a bit brutish. I now think of them as zombie apocalypse flag poles and hope that no one who volunteers to transport them ever has to explain to a police officer why they are carrying weapons.
If I am going to post to this regularly I have to be able to do it from my phone. Couldn’t find any compelling app to do it. But, apparently you can post to Wrodpress by email! I installed their add-in “Postie”(postieplugin.com) t o do it and set up a new email account on my shared hosting site. Very simple setup.
Posted this from my phone, so it works!