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Sebastian Feles – Assorted Scientific Services

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Designs

Order 3D print of my designs
  • Duplo compatible dining table
    by Sebastian.Feles
    23. August 2022
    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
    by Sebastian.Feles
    3. August 2022
    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 for 12 quail eggs. The …

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  • Repair of a WMF Kult milk frother
    by Sebastian.Feles
    3. August 2022
    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 on the inside, like a …

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  • Cutlery basket for dishwasher
    by Sebastian.Feles
    27. July 2022
    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. Since I did not like …

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  • Smoking pipe holder with ashtray and cork to knock out
    by Sebastian.Feles
    10. June 2022
    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 cork provided. For this purpose, …

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  • Stand for decorative tiles
    by Sebastian.Feles
    3. June 2022
    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
    by Sebastian.Feles
    15. March 2022
    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 to better wipe off residues. …

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  • Cardanically suspended and fourfold ball bearing beverage holder
    by Sebastian.Feles
    15. March 2022
    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 standard 330 ml or 500 …

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  • Outside Calipers
    by Sebastian.Feles
    15. March 2022
    Outside calipers for measuring and transmitting outside diameter. Maximum opening 140 mm and 180 mm. Made of weatherproof and impact resistant, non-electrically conductive plastic with low thermal expansion. Material PETG filament
  • Universal repair buckle
    by Sebastian.Feles
    9. February 2022
    I designed and 3d printed a universal repair buckle for broken strap buckles on bags or backpacks.Most buckles have the female part of the buckle sewn in tightly, but the male part of the buckle breaks. Due to the different dimensions, it is usually not possible to replace the broken male buckle because of the …

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  • Adapter for supporting a marble plate on a radiator
    by Sebastian.Feles
    7. February 2022
    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). Suitable for the space between …

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  • Removable bars for IKEA Gulliver baby bed
    by Sebastian.Feles
    5. November 2021
    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
    by Sebastian.Feles
    30. September 2021
    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 perforated plates and transparent window …

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  • Magnetic clamp for curtains in camper van
    by Sebastian.Feles
    30. September 2021
    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 countersunk head screws are used …

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  • Clamping claw for micro milling machine
    by Sebastian.Feles
    29. September 2021
    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, I designed and 3D printed …

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  • 160 W laboratory power supply
    by Sebastian.Feles
    7. September 2021
    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 being disturbed by the noise …

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  • Laboratory power supply for monitored USB power feed
    by Sebastian.Feles
    7. September 2021
    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 for voltage and current are …

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  • Repair buckle suitable for Ortlieb bicycle bags
    by Sebastian.Feles
    1. September 2021
    The buckles on both sides of my Ortlieb OFFICE-BAG bicycle bag are broken (like so many others). This means that the bag can no longer be closed.Since the buckles are sewn into the tabs of the lid, it is not easy to replace them. Either the flap must be cut open and professionally sewn back …

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  • Inside caliper with scale
    by Sebastian.Feles
    1. September 2021
    For a customer order, I was to insert an intermediate layer within a flower vase at a certain height. Due to the height and shape of the vase, which tapered downwards, it was practically impossible for me to determine the inner diameter at the defined point.What I needed was an inside caliper. Because of the …

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  • Funnel holder for IKEA jar
    by Sebastian.Feles
    16. August 2021
    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 at the bottom of the …

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  • One 18650 battery instead of eight AA batteries for rc control
    by Sebastian.Feles
    3. June 2021
    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, I redesigned the battery compartment …

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  • Stable and full protection mobile phone holder for motorbike
    by Sebastian.Feles
    3. June 2021
    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 can build an individual holder …

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  • 9-button extension for CAD 3Dconnexion SpaceMouse
    by Sebastian.Feles
    3. June 2021
    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 the SpaceMouse from 3Dconnexion for …

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  • Simple spacers for balcony flower boxes
    by Sebastian.Feles
    31. May 2021
    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 spacers that can be clipped …

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  • Tool for opening car wet batteries
    by Sebastian.Feles
    27. May 2021
    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 wet batteries. The contact surface …

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  • Universal battery charging slot
    by Sebastian.Feles
    27. May 2021
    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 reproducible result. This device is …

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  • Universal mount (inclusive suspension fork) for low rider bicycle luggage carrier
    by Sebastian.Feles
    27. May 2021
    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 wheel and is in fact …

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  • Walkie-talkie modified into a baby monitor
    by Sebastian.Feles
    26. May 2021
    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 baby monitor function of our …

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  • Paper towel holder with threaded rod for more stabilty
    by Sebastian.Feles
    19. May 2021
    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 used end a M8 nut …

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  • Bottle cage for camper
    by Sebastian.Feles
    19. May 2021
    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 prevent even on very bumpy …

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  • Bracket for small fire extinguisher in camper van
    by Sebastian.Feles
    19. May 2021
    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 width of the strap 44 …

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  • Magnetic sponge tray for sink
    by Sebastian.Feles
    19. May 2021
    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 rounded drain holes. All internal …

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  • Small under cabinet reading lamp for camper
    by Sebastian.Feles
    19. May 2021
    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 recommend using heat-stable filament such …

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  • Small universal stand for centrifuge tubes and microlitre tubes
    by Sebastian.Feles
    18. May 2021
    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 the laminar flow cabinet without …

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  • Improvements of my sand polisher
    by Sebastian.Feles
    8. May 2021
    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 thus excluded. To solve this …

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  • Microscope Ringlight
    by Sebastian.Feles
    28. April 2021
    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 of my own. I have …

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  • Universal bottle washer for the sink
    by Sebastian.Feles
    20. April 2021
    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 too long. So I had …

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  • Laser measuring device for the sharpening angle of knives (Laser Goniometer)
    by Sebastian.Feles
    20. April 2021
    In addition to the steel alloy, the grinding angle of the blade is decisive for the sharpness and service life of a knife blade. The smaller the angle, the thinner the blade can be ground and the sharper it is. However, this significantly reduces the time in which the knife is sharp. The material removal …

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  • Housing for Mean Well LRS-100 power supply unit
    by Sebastian.Feles
    19. April 2021
    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. A rectangular opening with the …

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  • Cable comb with 10 slots for measurement cables
    by Sebastian.Feles
    15. April 2021
    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 distance between the prongs from …

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  • Microscope ocular (eyepiece) protection cap
    by Sebastian.Feles
    14. April 2021
    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 directly exposed to the user. …

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  • Mounting frame for window in printer housing
    by Sebastian.Feles
    10. April 2021
    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 boards. From the inside it …

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  • Sorting trays for stacking with holding frame
    by Sebastian.Feles
    10. April 2021
    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 stacked on top of each …

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  • Tarp holder for rain gutter of a car
    by Sebastian.Feles
    8. April 2021
    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 in the gutter and a …

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  • Hotend cooler MK2 for Creality Ender 3 with 60 mm fan is released
    by Sebastian.Feles
    6. April 2021
    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.
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Recent Posts

  • Tape dispeser for Kapton tape
  • Duplo compatible dining table
  • Egg box for quail eggs
  • Repair of a WMF Kult milk frother
  • Cutlery basket for dishwasher

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  • Lasermessgerät zum Bestimmen des Schleifwinkels von Messern - Sebastian Feles - Assorted Scientific Services on A microscopic view of dull and sharpened knife blades
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