The Renkforce RF100 3D printer has inadequate heat management at the hotend. The heat from the extrusion nozzle rises through the inadequately designed heat break. As with many 3D printers of this generation, a PTFE sleeve is embedded in the upper end of the heat break for thermal insulation. This becomes too hot due to …
Continue reading “Renkforce RF100 improved hotend cooler with integrated cooling fan”
The Renkforce RF100 3D printer was one of the first 3D printers that could be purchased in Germany from the electronics store Conrad. Despite the severe limitations of this device, many people found their way into the scene with it. The print bed is unheated and is very small at a realistically usable 8×8 cm, …
Due to the work on our expedition vehicle, electronic projects always require high electrical currents. I have built a new power supply unit for this and used the Riden RD6024 laboratory power supply unit in combination with a 48 V, 31 A switching power supply unit as the basis. This gives the RD6024 in my …
As scientists, we wanted to give our kitchen the right look to make it feel like a wet chemical laboratory. So we came up with the idea of storing cooking oil in an amber glass flask with an NS29 standard ground joint. I designed a suitable standard ground joint adapter for pouring the oil.This fits …
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The alternator on my motorcycle, a 1989 BMW R100GS PD, has a low electrical output from the factory. For a long time, this motorcycle was the epitome of the touring enduro. As the largest displacement motorcycle in its class, it was the best-selling motorcycle in Germany. Nevertheless, there were some design weaknesses, particularly in the …
I have extended the cleaning principle of my bottle washer (https://www.thingiverse.com/thing:4833954) to a version that does not require an external pump and can be operated directly in the dishwasher.This involves removing the lower rotor of the dishwasher (we have the IKEA HJÄLPSAM model (https://www.ikea.com/de/de/manuals/hjalpsam-einbaugeschirrspuler-a__AA-575040-3.pdf) and replacing it with the bottle washer. As with the previous …
Robust bottle holder for large 1.5 litre PET bottles, 1 litre, Nalgene wide-neck bottles and the large 1 litre insulated bottle from Stanley. MaterialPETGhttps://amzn.to/49De8GQ
The IKEA FRÄCK make-up and shaving mirror is a simple and very inexpensive mirror. Unfortunately, it does not have any lighting. I have designed a ring light that can be mounted easily and directly using the mirror’s side mounting screws. The ring light is mounted in such a way that the mirror can still be …
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Stable vertical mounting for a quick-grab small fire extinguisher (maximum diameter 110 mm) in the motorhome or caravan. A standing position is provided. The bracket is two-part to be as flexible as possible and adapt to the conditions in the motorhome. The fire extinguisher is inserted into the holder from above and holds there on …
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Simple and robust wall bracket for small fire extinguishers with a maximum diameter of 70 mm. The bracket consists of two parts that can be flexibly arranged according to the requirements and characteristics of the respective fire extinguisher model.A must for every laboratory! MaterialSmall 70 mm fire extinguisherhttps://amzn.to/3T1rebd PETGhttps://amzn.to/49De8GQ
