- Renkforce RF100 improved hotend cooler with integrated cooling fan
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 …Continue reading “Renkforce RF100 improved hotend cooler with integrated cooling fan”
- Heat bed for 3D printer Renkforce RF100
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 … - Housing for RD6024 lab power supply
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 … - Bottle pourer for cooking oil fits on a standard ground-joint bottle
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 …Continue reading “Bottle pourer for cooking oil fits on a standard ground-joint bottle”
- Motorcycle top case with solar cell for charging the starter battery and power bank
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 … - Bottle washer for the dishwasher
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 … - Double bottle cage
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 - Ring light for IKEA FRÄCK make-up and shaving mirror
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 …Continue reading “Ring light for IKEA FRÄCK make-up and shaving mirror”
- Vertical holder for small fire extinguishers
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 …Continue reading “Vertical holder for small fire extinguishers”
- Wall bracket for small fire extinguisher
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 - Glow-in-the-dark mushroom lamp
Glow-in-the-dark bedside lamp in the shape of a mushroom. I used noctilucent filament for the white parts and illuminated the mushroom from the inside with LED strips. As soon as the light is switched off, the filament glows for hours. Material Night Glow PLAhttps://amzn.to/3I2jI9P LED Strip warm whitehttps://amzn.to/4bQOdNM *these are … - There’s a Great Big Beautiful Tomorrow Sign
A one metre long statement of inspiration, motivation and pure optimism. Written in 1964 as the musical theme for the Disney attraction Carousel of Progress for the 1964 World’s Fair in New York. The lettering is 1 metre long, 6 cm high and 2.5 cm deep. I printed it out …Continue reading “There’s a Great Big Beautiful Tomorrow Sign”
- Portable Mini Universal Laboratory Power Supply XYS3580
Housing for a compact, portable XYS3580 universal laboratory power supply.The XYS3580 is an elegantly designed laboratory power supply module which can operate as a DC-DC boost converter in CC and CV mode. With an input voltage of 6 – 30 V, a regulated output voltage of 0.6-36 V at a …Continue reading “Portable Mini Universal Laboratory Power Supply XYS3580”
- Small table lamp
I have constructed a small table lamp for the bedside table, inspired by the old shapes and design features of the Bauhaus school of work. The lamp is printed in individual parts and then screwed or glued. There are feedthroughs for cables and screw connections. I recommend a low E14 … - Quad toothbrush holder with drain holes
Ein schneller Remix des Zahnbürstenhalters des Nutzers JMSchwartz11. Wir hatten seine Version längere Zeit in Benutztung.Nach kurzer Zeit der Benutzung hat sich in den Vertiefungen und unter dem Halter ein beachtlicher Biofilm gebildet der aufgrund der Beschaffenheit eines 3D-Drucks nur für kurze Zeit zu entfernen war bevor er wieder kam. … - Tape dispeser for Kapton tape
A tape dispenser made from a printed with a tear-off blade made from a jigsaw blade. The design is originally from Thingiverse user Deltabox. Perfect for storing multiple rolls of Kapton tape on the lab bench to save space. - Duplo compatible dining table
I constructed a suitable dining table for the old 1980s Duplo House set.The original table consists of two halves that have always fallen off when playing. The table I constructed consists of one part. - Egg box for quail eggs
A colleague supplies us with quail eggs from own breeding. Unfortunately, it is not easy to get the special egg cartons for the small quail eggs. Therefore, the old and worn egg carton is hoarded like a sanctuary. I have accordingly designed and 3D-printed a beautiful and stable transport box … - Repair of a WMF Kult milk frother
The WMF Kult milk frother is a manually operated device that rotates the whisk via an up and down movement and thereby froths the milk. The principle of operation is similar to that of a humming top. In the hand grill there is a sleeve around which helical grooves wind … - Cutlery basket for dishwasher
In our dishwasher, the grid on the bottom rivet of the cutlery basket was broken in several places. The material was obviously too thin or not durable enough. The holes in the grid repeatedly allowed cutlery to fall through and blocked the rotation of the rotor during the rinsing process. … - Smoking pipe holder with ashtray and cork to knock out
A pipe ashtray with tray for two pipes. The two trays are designed so that even top-heavy exemplars or small travel pipes do not fall out and have a secure hold. The ashtray has rounded corners and edges for easy cleaning.For knocking out the pipe is a recess for a …Continue reading “Smoking pipe holder with ashtray and cork to knock out”
- Stand for decorative tiles
Simple stand for holding decorative tiles. Two small detents ensure that the tile does not slide down. The angle of lean is 80 °. The width of the support is 120 mm. Maximum thickness of the tile is 8 mm. Material PETG filament - Spatula and mixing plate for two-component adhesives
Simple but very useful mixing plate with spade for viscous two-component adhesives. Both parts are optimized for fast and cheap printing to meet a single use. The mixing plate has a slight elevation on three sides so that not everything runs down immediately. One side of the plate is open …Continue reading “Spatula and mixing plate for two-component adhesives”
- Cardanically suspended and fourfold ball bearing beverage holder
Suspension of a vessel holder from a rack by means of two intersecting perpendicular pivot bearings. Sturdy construction made of weather- and sea-resistant plastic with stainless steel screw connections. Two bearing points per ring for the highest possible stability. Thereby high degrees of freedom in the swing-out movement. Suitable for …Continue reading “Cardanically suspended and fourfold ball bearing beverage holder”
- Adapter for supporting a marble plate on a radiator
Due to floor-to-ceiling windows, we lack a windowsill for all our plants. We had a marble slab cut for the radiator. But in order to provide sufficient convection, a certain distance between the radiator and the marble slab must be ensured. It is an old cast iron radiator (ribbed radiator). …Continue reading “Adapter for supporting a marble plate on a radiator”
- Removable bars for IKEA Gulliver baby bed
Spring end caps to remove and replace the bars on the IKEA Gulliver crib. To assemble, carefully saw out three bars. Then use a chisel to clean the holes in the bed frame and shorten the bars. Insert springs into the printed caps and glue. Material PETG filament - Window louvers for camper van
Our expedition vehicle based on a Mercedes-Benz Sprinter 4×4 leaves only a few options to ventilate properly from the factory. Due to the curvature of the vehicle’s sides, it immediately rains in when the sliding window is open, and the airstream pushes inward unpleasantly while driving. I have made suitable … - Magnetic clamp for curtains in camper van
Flexible magnetic clamp to attach curtains to the center pillars in the motorhome. The clamp consists of four parts with three joints. The attachment is made via strong neodymium magnets.Three M3 x 35 mm cylinder-head bolts and five M3 self-locking nuts are required for mounting. Two M3 x 16 mm …Continue reading “Magnetic clamp for curtains in camper van”
- Clamping claw for micro milling machine
Inspired by a no longer needed ITEM system profile I had the idea to build a small miniature milling machine from old parts. I will report about this separately. I used the small, but for my purposes perfectly adequate Proxxon KT 70 as a cross table. To fix the workpiece, … - 160 W laboratory power supply
I wanted to have as compact, small and flexible a laboratory power supply as possible with a maximum output voltage of 32 V and 5 A. It was especially important to me that it should be completely passively cooled. So I can use it overnight to charge different batteries without … - Laboratory power supply for monitored USB power feed
Power supply via USB is practically an industry standard for many devices nowadays. Originally only intended to supply power to small devices such as computer mouse or keyboard, the USB connection is now operated without a data line practically as a universal 5 V socket. Here, the intended limit ranges …Continue reading “Laboratory power supply for monitored USB power feed”
- Funnel holder for IKEA jar
The duration of use of frying oil depends largely on the smoke point. Impurities reduce the temperature at which the smoke point is reached. Accordingly, after each frying process, the oil should be filtered to remove as many residues and particles of the fried food as possible. Otherwise, they accumulate … - One 18650 battery instead of eight AA batteries for rc control
The manufacturer has provided eight AA batteries with a cell voltage of 1.5 V for the RC model remote control. These are connected in series to achieve a final voltage of 12 V. Having eight batteries or rechargeable batteries always in stock was too much and too expensive for me.Instead, …Continue reading “One 18650 battery instead of eight AA batteries for rc control”
- Stable and full protection mobile phone holder for motorbike
Introduction Commercially available mobile phone holders for the motorbike are either too unsafe or far too expensive for me. In the case of the former, this is certainly because the manufacturers are trying to sell a universal mount. Of course, I don’t have this problem with my own design and …Continue reading “Stable and full protection mobile phone holder for motorbike”
- 9-button extension for CAD 3Dconnexion SpaceMouse
A CAD navigation tool is a great help for the construction and three-dimensional orientation in a technical drawing. A colleague of mine once said that it later feels like a body part has been amputated when you have to design without SpaceMouse after you have gotten used to it.I use …Continue reading “9-button extension for CAD 3Dconnexion SpaceMouse”
- Simple spacers for balcony flower boxes
3D printing is the perfect tool to fix little things in everyday life that are always annoying but too time-consuming to fix with other methods. The new brackets to attach flower boxes to the railing of our balcony are (like most things purchased) poorly thought out. I have simply constructed … - Tool for opening car wet batteries
Tool to open the individual cells of a car battery. As a friend of classic lead wet batteries that you can still maintain and refill with deionized water or sulfuric acid, I was always looking for a reasonable tool to open the cells.This tool is suitable for all common car … - Universal battery charging slot
Universal battery charging slot for all available types of battery round cells.Any primary or secondary cell can be permanently clamped and connected to a measuring instrument, laboratory power supply or electronic load. The current collectors are pressed firmly onto the battery terminals via the spring, which provides a reliable and … - Universal mount (inclusive suspension fork) for low rider bicycle luggage carrier
Introduction Suspension forks and unfortunately many rigid bicycle forks do not have attachment points for low rider bicycle luggage carrier. With suspension forks, it is usually argued that it could come to a swinging and thus to speed wobble. In practice, this depends heavily on the mass on the front …Continue reading “Universal mount (inclusive suspension fork) for low rider bicycle luggage carrier”
- Walkie-talkie modified into a baby monitor
Commercially available baby monitors are ridiculously overpriced, usually only allow one-way communication and cannot be used for any other application. Once the child has outgrown the device, it is useless. In addition, the radio range of the devices is usually very limited.An alternative would have been smartphone apps or the …Continue reading “Walkie-talkie modified into a baby monitor”
- Paper towel holder with threaded rod for more stabilty
I first used the paper towel holder from user “kr15_uk” for my motorhome, but always had the problem that the roll unrolled by itself or fell off completely. I put a M8 threaded rod through the two round openings and designed two adapters for it. On the not so often …Continue reading “Paper towel holder with threaded rod for more stabilty”
- Bottle cage for camper
Introduction Simple, flexible but very stable holder for large 1.5 l bottles and Nalgene wide mouth bottles.The holder is deliberately designed in two parts to be able to freely choose the height so that top-heavy bottles do not fall out.The upper part of the holder is built particularly stable to … - Bracket for small fire extinguisher in camper van
Introduction Stable mounting for a quick-grab small fire extinguisher (maximum diameter 110 mm) in the motorhome or caravan. A lying position is provided.The bracket is three-part to be as flexible as possible and adapt to the conditions in the motorhome. The fire extinguisher is attached with a separate strap (maximum …Continue reading “Bracket for small fire extinguisher in camper van”
- Magnetic sponge tray for sink
Introduction Sponge tray that can be magnetically attached to the inside of the sink. In this way, residual water drips directly into the sink and, despite the holder, the full size of the sink is always available when needed.The tray is designed so that residual water can drain through several … - Small under cabinet reading lamp for camper
Introduction Very compact and space-saving under-cabinet reading lamp for LED strips. I have designed the lamp so that the overall height is as low as possible (limited by the switch). The beam angle is chosen so that when mounted just above the head is pleasantly illuminated the book. Printing I …Continue reading “Small under cabinet reading lamp for camper”
- Small universal stand for centrifuge tubes and microlitre tubes
Small universal stand for 50 ml and 15 ml centrifuge tubes (such as Falcon tubes) as well as 0.5 ml, 1.5 ml and 2 ml microlitre tubes (such as Eppendorf tubes).The footprint is kept as small as possible so that the stand does not take up so much space in …Continue reading “Small universal stand for centrifuge tubes and microlitre tubes”
- Improvements of my sand polisher
Introduction After prolonged operation of my sand polisher, the problem of the glass jumping off the guide gears due to the axially opposing force occurred again and again. As a result, the gear ring is no longer in the groove and the drive gear slips. Prolonged and unattended operation is … - Sand Polisher
Introduction I have a 3d printed sand polisher from different designs from various users at Thingiverse. Especially for small 3d printed parts made of PETG, where the surface is often not perfect, I hope to be able to significantly improve the surface finish over several polishing processes. A simple 12 … - Microscope Ringlight
Introduction Circular, uniform and bright illumination is an essential requirement in stereomicroscopy. Unfortunately, cheap ringlights are either not bright enough or too simple in design. Industrial illumination systems for stereomicroscopes (e.g. SCHOTT, or ZEISS), on the other hand, are ridiculously expensive. So it was up to me to build something … - Universal bottle washer for the sink
Introduction For quite some time I have been annoyed by the fact that it takes a lot of effort to clean bottles. In the dishwasher they do not get properly clean or deposits form in them. To rinse the bottles constantly by hand with glass beads or rice takes me … - Housing for Mean Well LRS-100 power supply unit
Simple but functional housing for the Mean Well LRS-100 power supply series. I have provided large dimensioned ventilation openings, as well as two mounting points for the power supply. Two holes with a diameter of 6 mm can be used to insert the cable for mains voltage and operating voltage. …Continue reading “Housing for Mean Well LRS-100 power supply unit”
- Cable comb with 10 slots for measurement cables
A simple cable comb created from Thingiverse user NT7S fantastic openSCAD customizer. Unfortunately the Thingiverse customizer doesn’t work anymore, but the file can be opened without problems with openSCAD and edited directly there.I have taken the default settings from user NT7S for the most part. I increased the number of prongs to 10 and the …Continue reading “Cable comb with 10 slots for measurement cables”
- Microscope ocular (eyepiece) protection cap
Dust and grease are the biggest enemy of good optics. Of course, this is especially true for microscopes and telescopes. As a matter of principle, every microscope should be covered with a dust cover after use. The eyepieces are particularly sensitive, as they are the only part of the optics …Continue reading “Microscope ocular (eyepiece) protection cap”
- Mounting frame for window in printer housing
I opted for a purely utilitarian but highly functional housing for my printer. No colorful and flashing lights, no gimmicks. For me, it’s a working machine and I’ve never seen anyone put their CNC milling machine in a brightly lit plexiglass case. I have built my housing from cheap mdf …Continue reading “Mounting frame for window in printer housing”
- Sorting trays for stacking with holding frame
Sorting trays with nine numbered compartments. Each tray is 30 x 30 mm, 10 mm deep and has rounded edges and corners on all sides for easier removal of components. Each tray measures 96 x 96 mm and is 11.5 mm high. Three or six sorting trays can be safely …Continue reading “Sorting trays for stacking with holding frame”
- Tarp holder for rain gutter of a car
This is a bracket for attaching a tarp or awning to the rain gutter of a car or camper van. This model is specifically for the Mercedes-Benz Sprinter up to year of manufacture 2006, but should be universally applicable. The holder consists of two parts. A strip which is placed … - Hotend cooler MK2 for Creality Ender 3 with 60 mm fan is released
I was dissatisfied with the freely available coolers for my applications and so decided to design my own version. The most important feature for me was the use of a 60 mm axial fan to be able to guarantee a high volume flow and thus excellent cooling performance. This is crucial when using high-temperature filaments (e.g. nylon) and at high installation temperatures (e.g. ASA > 60 °C). Hotend cooling is required to restrict extrusion to the heater and nozzle. Without sufficient cooling, the heat will rise and cause clogging. I optimized the cooler for the MicroSwiss Hotend at my Creality Ender 3 Pro.
