BROKEN WALLFLOWER (Bath and Body Works)
4 more posts in this thread. [Missing image file: 003_728.jpg]
Ok, so this sounds like a pretty gay thread, but as man of the house part of my job is to fix my lady's things. Also, shit does not smell good and the Cranberry Woods scent for these things smells awesome, so my girl bought one for me. They are great, but are notorious for breaking.
You can take them back and they will replace them after some argument, supposedly. However, there are certain ones that are limited time only or discontinued and they look a certain way. My girlfriend wanted to know if I could fix her special Halloween one.
So I hacked my broken one apart first. It seemed that they were just shittily press fit together, but after making mine look like shit I discovered that there 4 dots on the back around the plug which looked like production marks or something. With a tiny screwdriver you can pry them off, unscrew the 4 screws underneath, and they pry right apart. There are also two small clips to release from underneath the "flower" where you screw in the scent bulb, if it gives you trouble.
Once I had it apart, I was amazed at how little is in there. There are 2 wires, the plug, a ceramic heating element and a small black component mounted in-line. After Googling, I found this item to be a Radial Thermal Cutoff.
Basically, if it detects temps in excess of 130 F, a small bit of alloy inside melts, and surface tension draws it apart into 2 beads, breaking the circuit. PERMANENTLY. Its not a fuse, its not resetable, it just breaks it. You could replace it, but why.
I cut it out and twisted the wire back together (too lazy to solder, come on, its a scent bulb.) Now it works again. Of course, it could overheat and burn my house down, but how the fuck is it going to do that?
Apparently the issue is that power surges break the little temp cutoff and fubar the whole thing.
14 more posts in this thread. [Missing image file: cryosleep chamber.jpg]
I think this is something you might be interested in. I want to construct my own DIY cryo-freezer/defreezer device. I completed a BSc in Engineering and am currently a medical student (1st year), nevertheless I have no clue how to do this.
As far as I know my university has no cryogenic freezing device, not a professor who knows stuff about it, but I will ask around a bit, maybe I get lucky. Before I do so, however, I need to collect some basic information. I did some research on the interwebs, but I don't really find anything useful.
>What is the problem?
Well, freezing with nitrogen is the basic idea, but the samples will experience a thermic shock (especially biologic samples). I'll need to set up a machine that monitors the freezing process. My programming skills are mediovre at best. Is an Arduino board a good start for it? Would it be capable of monitoring temperature and changing the energy output? I think it should be suffcient.
I don't expect many replies, but any constructive reply would be helpful. The idea is: if I approach a professor with a basic concept or even a prototype I might spark his interest, or be at least taken seriously.
I need capacitor advice
2 more posts in this thread. [Missing image file: P1020261.jpg]
My old Samsung Syncmaster 205bw died on me and I decided to pick up the ol' Weller and fix it in the /diy/ spirit. I do have a couple questions, however. Here are the bad caps I have removed from the board:
5x Capxon 820uF 25v 10x20
1x Capxon 330uF 25v 10x13
Would you help me find proper replacements for these, please? I am looking for caps online, as there are limited options in shops where I live. I'd like to order from Hungary, Europe, and would like some tips on what to get and where. I heard I should go for Panasonic FC series caps.
All tips and information are greatly appreciated, gentlemen.
2 more posts in this thread. [Missing image file: xianmacro6.jpg]
/diy/, I has a question.
The management of the building my flat is located in decided to reduce the tenants' (yeah, that includes me) drain on their budget by limiting the usage of shared electricity... By making sure we can't use any common electricit- powered appliances in our basements. The fuckers did that by severing the existing instalation and laying a 24V AC one instead to provide lighting (I am fairly sure it's a pretty bad investment, but what do I know). Regardless, I want my electicity back, so I decided to cook up a 24 to 230 V transformer and tap into the new installation. Questions are:
Is it worth coughing up the additional money for a toroidal transformer?
Will the transformer heat up much? I'm asking because I only have experience with lower powered ones.
How do I voltage spike-proof the circuit? As in, exactly how, because although I know the basic principles I still need it explained in detail because I'm a retard.
Anything else I should keep in mind?