Once things warm up I was considering looking at what was needed to get the large walk-in refrigerator working again. At last inspection the compressor ran but I never verified if the loop was still charged because the condenser fan has seized solid any my efforts failed to free it, so that needs to be replaced.
Hi. The name's John.
Kamloops has been my home since I moved here in 2000. Over the years I have developed a specialty for working with older computer systems and equipment. We're not talking your lousy 233mhz P1 or old Pentium 4. We're talking REAL hardware! Silicon Graphics, Sun Microsystems, Tandy, DEC, IBM…The list of machines and peripherals in my collection are phenomenal. I've run almost everything I could easily get my hands on and I'm ALWAYS looking to diversify my collection.
Posts made by MIPS
RE: Pachinko Machine
You will need to experiment. If the pins are at all ferrous then if the balls accidentially become magnetized you will clearly see it affecting gameplay.
My idea is based on the musical ball machine in front of Science world. They move balls from the bottom to the top of the machine by use of a chain with forks (well, more like little U-shaped pieces of metal)welded to it. The balls line up at the bottom of the chain and get picked up as the forks scoop them up one at a time from underneath.
Otherwise I also like the idea of a bucket that slides into a tongued mount underneath and there’s a funnel on top however you will need to be rather tall to load the machine.
Solidoodle 3D Printer
It’s been down for the last few months due to “driver issues”. Was told last weekend that it /might/ be a board fault and that a bunch of parts (mainly pin headers) needed to be swapped to a donor control board.
Took the boards home and did the desolder, swap and repaired several damaged pads. Reinstalled the replacement this evening. Testing as follows
X-drive circuit test (both directions): PASSED
Y-drive circuit test (both directions): PASSED
Z-drive circuit test (both directions): PASSED
Extruder circuit test (both directions): FAILED - Does not respond to manual control
Bed temperature test (does it turn on): FAILED - OctoPrint won’t keep settings
Extruder tip temperature test (does it turn on): FAILED - OctoPrint won’t keep settings
An audible hum could be heard and the extruder motor is getting rather warm. I need someone to verify that its driver is working.
The fan for the extruder motor has worn out. It needs to be replaced.
Vaughn has cleaned up the shelf with the printers and added new lighting. Be aware the new overhead LED lamp also powers the RasPi using the USB port.
RE: Need help with somewhat urgent electronic repair.
Are you able to drag either the compressor or this controller in on Wednesday? I can take a peek at it then.
RE: Laser Cutter *was* down
We still had coolant circulation before it was cleaned so the tube itself has not cooked. The anode cabling is also presumably fine as well.
The arcing was visible through the vent opening on the side of the PSU. If you shine a flashlight through right now you should see at least two white wires which are undeniably cooked and possibly a winding on an inductor coil.
If you were to remove and open the PSU the damage should be pretty evident but so long as we have a warranty I suggest we wait until the vendor tells us what to do next.
Laser Cutter *was* down
I was notified about issues with the cutter this morning and on inspection found that not only was the laser itself not firing but the cooling loop was completely overgrown with algae. The lines have been flushed, cleaned and I’ve refilled it with a 5% Ethylene Glycol solution to kill most of what is left and inhibit future corrosion until an improved cooling system can be built.
The second problem however is something I’m not touching. Once the cutter was up again I observed that firing the laser resulted in arcing from the tube’s high voltage supply. Charred wiring is visible through the vent openings. Since the cutter is under warranty for another three months I suggest we get this handled ASAP. In the meantime I have put the keys in the filing cabinet in the Office to prevent operation of the machine.