I am having trouble swallowing, but not for any reason you might think.
So for the backstory:
when I was 9, i fell off a balance beam and hit my head on it really hard. The balance beam actually hit my mouth area and chipped off the tops of my two front teeth.
They got patched up, of course, but since then my front tooth has had extreme cold sensitivity to where I have to use a straw to drink.
I am 29 now. About two months ago, I had an abscess in my gums. It turns out the nerve in one of my front teeth had died and it needed a root canal. I had that done, and since then, the cold sensitivity has completely vanished.
Here is the problem I am having:
I have tried switching away from using straws, but I simply can't. It's like I have un-learned how to drink fluid normally. If I try to take more than a large sip of water from a cup I end up inhaling it. I'm pretty sure it is not some kind of dysphagia, or trouble swallowing. The best analogy I can come up with is if someone had one of their legs paralyzed for a long time and then had that movement restored. They would need physical therapy to learn to walk again. I'm like that but with drinking water from a glass.
I have two questions:
1. is there a psychological term for this kind of phenomenon?
2. How can I teach myself to drink fluid like a normal person again?
So for the backstory:
when I was 9, i fell off a balance beam and hit my head on it really hard. The balance beam actually hit my mouth area and chipped off the tops of my two front teeth.
They got patched up, of course, but since then my front tooth has had extreme cold sensitivity to where I have to use a straw to drink.
I am 29 now. About two months ago, I had an abscess in my gums. It turns out the nerve in one of my front teeth had died and it needed a root canal. I had that done, and since then, the cold sensitivity has completely vanished.
Here is the problem I am having:
I have tried switching away from using straws, but I simply can't. It's like I have un-learned how to drink fluid normally. If I try to take more than a large sip of water from a cup I end up inhaling it. I'm pretty sure it is not some kind of dysphagia, or trouble swallowing. The best analogy I can come up with is if someone had one of their legs paralyzed for a long time and then had that movement restored. They would need physical therapy to learn to walk again. I'm like that but with drinking water from a glass.
I have two questions:
1. is there a psychological term for this kind of phenomenon?
2. How can I teach myself to drink fluid like a normal person again?
I ordered two halves of a gear for a project I was working on. The two halves were printed out of SLS nylon and one half was dyed black whereas the other was kept natural.
I left them bolted together for a bit over a year and this happened! Some of the dye from the black half leeched into the white half, permanently staining it.
For some context, SLS nylon can only be printed in white and the the only way to make it take on other colors is to boil it in Rit dye.
It's interesting to me that this can happen at all. Just thought I'd share.
I left them bolted together for a bit over a year and this happened! Some of the dye from the black half leeched into the white half, permanently staining it.
For some context, SLS nylon can only be printed in white and the the only way to make it take on other colors is to boil it in Rit dye.
It's interesting to me that this can happen at all. Just thought I'd share.
I made a vapor polishing chamber with a food serving container (called a gastronorm) and (mostly) parts found on 3d printers.
It has a silicone heater taped to the bottom which is controlled with a pretty standard temperature controller and a DC solid state relay. The heated pad on the bottom is capable of getting to 110 celcius.
There's a couple 3d printed parts which are used for making a mount for a motor as well as a fan. These both were printed out of PVDF, an extremely chemically resistant polymer. The tray for holding the parts to be polished is affixed to the sheet of glass via some magnets and some flat-head screws. Everything else in the chamber is made from stainless steel.
It has a silicone heater taped to the bottom which is controlled with a pretty standard temperature controller and a DC solid state relay. The heated pad on the bottom is capable of getting to 110 celcius.
There's a couple 3d printed parts which are used for making a mount for a motor as well as a fan. These both were printed out of PVDF, an extremely chemically resistant polymer. The tray for holding the parts to be polished is affixed to the sheet of glass via some magnets and some flat-head screws. Everything else in the chamber is made from stainless steel.
This construction makes it suitable to be used for boiling and making vapors of any solvent I wish to use. In the coming weeks I will run experiments with it to see what solvents can be used to vapor polish what polymers.
the (non-exhaustive) list of polymers I want to test:
PLA, PETG, PCTG, ABS, ASA, TPU, PA6, PA12, PP, PMMA, HIPS and PVDF.
An incomplete list of solvents I'm going to test:
Isopropyl alcohol, Acetone, Ethyl acetate, limonene, Dichloromethane, DMSO, methyl ethyl ketone, toluene, methanol
Please let me know what other solvents and/or polymers I should try. Keep in mind I do not have a fume hood, so the solvents I can test with are limited to what I'm willing to let float around in my garage while it airs out. Essentially I don't want to use heavier PPE than rubber gloves, safety glasses and a respirator. I will not work with anything more toxic or volatile than toluene.
the (non-exhaustive) list of polymers I want to test:
PLA, PETG, PCTG, ABS, ASA, TPU, PA6, PA12, PP, PMMA, HIPS and PVDF.
An incomplete list of solvents I'm going to test:
Isopropyl alcohol, Acetone, Ethyl acetate, limonene, Dichloromethane, DMSO, methyl ethyl ketone, toluene, methanol
Please let me know what other solvents and/or polymers I should try. Keep in mind I do not have a fume hood, so the solvents I can test with are limited to what I'm willing to let float around in my garage while it airs out. Essentially I don't want to use heavier PPE than rubber gloves, safety glasses and a respirator. I will not work with anything more toxic or volatile than toluene.