Counting matching models…
These connectors allow you to refill travel/trial-size toothpaste tubes, which are much smaller and prefect for travel and camping, from larger home-size tubes. The connectors are sized for the two most popular US brands of toothpaste:…
These connectors can be used to build shelves, storage boxes, desks, and other useful items from pieces of nominal ½ - ¾ inch thick plywood. Each connector consists of an outer piece, a 90 deg angle, an X, a TEE, and one or two inner…
Micro-controller: Any Arduino compatible micro-controller will work. The IR train sensors can be powered by 3.3V DC, but have a longer detection range when powered at 5V DC. The XIAO SAMD21 micro-controller used in this project is powered…
This is a 0.03 scale model of the fence I built for my yard, which is not exactly HO or O scale. I chose this scale because it looks nice. If you want something different you can adjust this in your slicer. The fence panels and feet are…
Stand for a type 130 DC electric motor and optical chopper. The motor is firmly held in the stand by friction. Mounts are provided for terminals and instrumentation.
I have a seasonal HO-scale layout that I set up for the winter months and take down for the rest of the year, which is why I really enjoy the snap-together track. I also have a bunch of traditional track that a neighbor was throwing out.…
A Hayes bumper compatible with EZ track. The interior is solid so it can be printed with minimal supports, which can be removed without destroying the model. Special thanks to Sendel who posted his model of the EZ track latch…
Remix of "Hose clamp for dust collection hoses" by Marius Hornberger, with clamps sized for 2.5 and 4 inch hoses and hex pocket of M5 machine screw rotated to make strap narrower, allowing it to fit better between helical coils of hose. I…
This 2.0 version is an updated model of my Western Buck & Rail Fence that is more realistic than the original model. I made the model actual size with a height of 64 inches and rail length 140 inches. You can scale it down to whatever…
This model includes a column clamp that supports a 2 ½ “ flexible hose on the vertical column of a drill press, a dust collection nozzle, and a 2 ½ ” to 4" hose connector. The column clamp is printed in four parts: 1 instance of the…
This free-wheel axle replaces the drive axle of the LEGO City Train. It has a round segment that rotates inside the drive shaft of the train motor, allowing the train to be pushed around the track without rotating the motor. The model…
I built this HO-scale model train controller to make “running” the train more realistic, and more fun. The direction of the train is controlled by a double-pole, double-throw switch. I used a big knife switch rated at 63A (purchased on…
This is an update (July 25, 2025) of my original design, which had a lot of movement of the field of view due to slop between the tube and stand and flexing of the traditional goose neck stand. Slop between the tube and stand was…
This is the key required to open/close hydrants embedded in the exterior walls of commercial buildings. The key fits a 3/8 inch square valve stem. The socket fits a standard 3/8 inch drive. When printed using PLA this is extremely strong.…
Printed column ends are from: Classical-Era Temple of Pallinis Athena (at Gerakas, Attica) by LeonidasVasileiosManiatis March 24, 2023. Import column STL file into slicer and use cutting tool to select the end to print Columns: ¾"…
These HO-Scale trees were originally created by Mckinze Malinowski in OnShape Public Documents, and modified here by addition of a reflective IR sensor to detect the presence of passing trains.…
Drilling a hole in the end of a long dowel rod is difficult using a hand drill. This is best done using a lathe, but when this is not available, this jig and a drill press can do the job. The jig shared here was used to drill ½" holes in…
This model is a repair part for the Planet Bike Blaze headlight. Epoxy this in the broken headlight mounting slot.
With this adapter I can inspect my rain gutters while standing on the ground. Use a bicycle cellphone mount to connect the phone to the adapter.
These negative holders allow you to scan negatives on the Canoscan flat-bed scanner. For 116/616 negatives, place the base frame on the scanner platen in the corner indicated by the arrow. Insert the negative in the holder with the shiny…
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