CIRCLE WITH A DOT

Today's #repair project was a Prusa Mini+ 3D printer. A friend's 14 years old son had indicated interest towards 3D printing and friend wanted to give him a 3D printer as a birthday present. They're on a tight budget, so they ended up looking for a used one. I recommended a Prusa for their longevity and repairability.The device was sold as "100% working" but when the friends asked me to check it, I instantly noticed the Y axis had a huge play in it. The part that holds the Y axis belt couldn't hold onto the belt's tooth any more and it was impossible to tighten it correctly. With no time to spare fighting with the seller and thanks to Prusa's mentality of 3D printing as much as possible of the parts, the model for the new part was freely available and it was just a matter for me to download and print a new one. After replacing it the belt tightened as it should and after factory resetting and calibrating the device so the young lad could just start printing, it was ready to go into a box to be wrapped.#3dprinting #prusa #3dprinter

Das Repaircafe Gröbenzell startet am 13.4.26 ein Linux Repaircafe mit einer Infoveranstaltung.https://repaircafe-groebenzell.de/blog/linux-repair-cafe/#Repair #Linux #Gröbenzell #Opensource #Repaircafe

Cool! Repair Cafe around here!Repair Cafe Santa BarbaraJoin us for Repair Cafe Santa Barbara, a free, community-powered event where volunteers come together to fix broken treasures instead of tossing them away. Bring your worn-out clothes, appliances, toys, electronics, bikes, furniture, and more. The team of talented fixers will help you bring them back to life. This hands-on event is all about learning, sharing skills, and keeping items out of the landfill. This is not a drop-off service — we invite you to bring up to two broken items, roll up your sleeves, and take part in the repair process! Saturday, March 21, 2026 10:00 AM 1:00 PMhttps://cecsb.org/events/repair-cafe-santa-barbara-g45am#ReduceRepairReuseRecycle #repair #diy #fixit

@ottaross I've had success with the glue on google pixel phones using the bed of my 3d printer to heat them up (never tried it with apple however)

@Guenter_aus_Aux#ADFC

Mars Trek's playfield rubbers have been there untouched since late 80s. They're great! #pinball #repair

Today we hopefully tackled the last major issue from Mars Trek. At seemingly random the 100 points relay got stuck, which would then happily burn the 100 points score reel coil. A lot of head scratching later we noticed that it only happens for the 1st player, so it's not the 100 points relay, but the end-of-stroke switch in the 1st player's 100s point reel mechanism that unlatches the relay once the score has been awarded.That out of the way the machine finally got to a stage where we started tearing down the playfield for cleaning, repairs and fresh rubbers.#pinball #repair #retrotech #retro

@Janet_52square looks a bit chaotic

Visible mending on a little bag. 🪡 #mending #visiblemending #mendingmatters #repair #stitchdontditch #slowstitching #repareren #verstellen #duurzaam #duurzaamheid #sustainability

The EM logic is just amazing when it comes to doing a lot of things with very limited hardware. What actually causes the machine to dispense a new ball onto the plunger lane?Looking at the schematics page that has the ball release coil, it has 2 conditions: out hole relay must pull and switch 4B in the score motor must be active. The score motor runs during the gameplay, but as long as the out hole relay isn't pulling, the path will never be complete for the ball release solenoid to fire.Once you lose the ball and it's sitting on the out hole switch, the circuit finally completes as the score motor rotates as part of the end-of-the-ball tasks and then new ball is released.But naturally it's not THAT simple. The out hole switch isn't directly running the similarly named relay. The more I drill into the schematics, the more incredible this thing becomes. As someone who can write code, all this jungle of wires would easily fit into a Nano Arduino which would happily run a software-reimplementation of the whole thing.Anyway, this game is slowly running out of things to fix, which means we can take the playfield topside apart and clean it up!