I finally watched Black Widow. This version of Smells like Teen Spirt is hawt.
More than once over the last couple of years I’ve thought “I need a server for this“, or “It would be really handy to have a test environment for this“, and being a little bored… I’m starting a new project. It’s probably more than I need, and you probably think I’m a little crazy. But I have the skills, know-how, and money to have a little fun with it. This project is meant to be a bit of a living, breathing project, that will change and adapt over time. I know how I want to start it, so that’s what I plan to do.
I’m going to keep a running total of the costs of this project. [Pricelist] A little later I’ll get a list of ‘wins’ or purposes that I used the rack for, so I can see the costs of these wins. This is mostly just a curiosity, I’m already confident that I’m doing this on the cheap.
I plan to use as much of the random equipment I have laying around as possible. Some of this will end up being a little dated. If it is too dated to be useful, I’ll replace it.
|rack and rack parts||qty||My Cost||In Use?||estimated value||Link|
|Rack 21U||1||85.00||yes||500.00 – 1000.00||Link *|
|1U blank (metal)||6||0.00||32.39||Link *|
|2U black (metal)||2||0.00||15.99||Link *|
|4U black (metal)||2||0.00||53.86||Link *|
|1U shelf (metal) 1/2 rack depth||1||0.00||28.37||Link *|
|2U shelf (metal) 1/2 rack depth||2||0.00||79.98||Link *|
|2U Drawer w/ Lock (metal) 1/2 rack depth||1||0.00||64.99||Link *|
|4U Drawer (metal) 1/2 rack depth||1||0.00||58.99||Link *|
|2U Power Plug w/ locking (custom)||1||0.00||25.00|
|1U PSU w/ 6 outlets, 1 switch, 15amp fuse switch||1||0.00||48.87||Link *|
|20 Ft Heavy Duty Power Cable||1||0.00||44.88||Link *|
|Monitor Mount Arm (missing pieces)|
|85.00||$953.35 – $1453.32|
I picked this rack up about 6 years ago from local online classifieds. It was about 30mins away from me, so I sent a buddy of mine with a trailer to go get it for me. Cost me $85. It’s been sitting in a corner of my garage waiting for me to find a use for it. I knew I eventually would… but I’ll admit it took me longer than I expected. It’s dusty and full of cobwebs and dirt, so first I’ll need to clean it up.
It has handles on the sides, casters, and rails that have the holes cut directly into them instead of requiring cage nuts. It’s actually an audio equipment rack. I may have to swap out the rails, after I get it cleaned up I’ll dig into that a bit.
When I bought it, it had a monitor mount clamped to a 2″ hole in the top, near the backside. Now, I wish I would have saved the mounting hardware for that, but It doesn’t look like I did. You can see the arm at the top of the rack in the picture on the left.
The power cable, plug, and PSU are a partial custom job, that I might reuse. I plan to attempt to keep the portability of the rack intact, so I like the power cord being removable. The cord has a locking end on it, on the rack side, and a standard 120v outlet on the wall side. I’m not sure how I feel about the PSU, it feels empty. I have some battery backups being delivered and I’m not sure how I feel about their power running through this, debating if I’m going to use it.
Alt title: Banana
Pretty sure he rhymes marijuana, piranha, banana, and lama…
While I was out reading about the things people believe caused the fires, it sounded like the power supply was in question. I read something along the lines of “its the cheapest version of this power supply” more than once. At the link below, is the power supply I ended up going with. It was recommended by someone else and had decent reviews. I’ve been running it off/on for a year now and had no issues with it.
Below is the wiring diagram from the Anet A8 assembly instructions. Its very similar to the power supply I purchased.
One of the other major concerns when it came to starting fires, was the wiring between the board and the hotbed and hotend. I saw pictures of burn marks where the connector plugs into the bed and on the board. These connectors on the board are not attached very well, and at one point I even ended up gluing and soldering them into place during the AM8 conversion.
I have yet to solider the bed connection directly to the bed. This connector is one of the possible failure points. But because of the cable chains I printed, and the way it holds the wires, I’m not very concerned with this wiggling free and allowing a short.
I’m not going to pretend I fully understand how the mosfets work, but I can tell you what I know. The mosfet allows the higher voltage power, to route around the board, while allowing the board to still control the flow. The ones I bought were once again, recommended by another post.
The concern with fires is around the wiring on the bed, most people do not also install a mosfet on their hotend. However, they were so cheap, and it was easy to do, so I did.
These wiring diagrams are basically the same thing. When wiring the hotend mosfet, you would put the hotend where the hotbed is.. right? My hot end has 2 positive and 2 negative wires, just stack them together.
(if this doesn’t make sense to you, go get some adult supervision)
Plug / Switch Combo
This plug/switch/fuse combo is just a nice addition to the printer. Without it your wiring a cut power cable directly to the power supply. Not super portable, and less safe in my opinion. Plus these are cheep!
I did have to print something to mount this to, but there are several versions on thingiverse. I printed mine before the VR Incident, so I modified it to work for the AM8 conversion.
The wiring diagram is pretty simple.
Thats not what she says.. but once you hear it.. you can’t unhear it.
Alt title: I refuse to admit I found this song on the tiktoks.