Bierlift / Erdkühlschrank / Bierversteck

thingiverse

The Bierlift Project Description is available for free at https://www.bierlift.de/bierlift-projektbeschreibung/. If you have a backyard, you should definitely consider building a beer cooler like this one. The Bierlift is always a highlight at any outdoor party in the garden. Here are some of its benefits: - Beer stays cool and dark - No energy consumption for cooling - Drinks are always within reach while grilling in the garden - Maintenance-free and made from durable, weather-resistant materials - Can hold up to 21 bottles (0.3L) of different shapes and sizes - The motorized drive saves your back - Cost-effective The outer casing of the beer cooler is a thick-walled KG DN 250 pipe with a KG muffler stopper DN 250. This type of pipe can be found at any hardware store, such as the online shop from Hornbach where I bought mine. Most parts of the Bierlift were cut out of 6mm HPL plates using a CNC machine. HPL (Bauallzweckplatte or Balkonplatte) is extremely robust and solid material with a weather-resistant surface that doesn't need additional treatment and looks great optically. HPL can be purchased at any hardware store in custom sizes. Aluminum pipes of different shapes and sizes serve as guides and stiffening elements. Aluminum can be easily machined using common household tools, making it a versatile material. Aluminum is lightweight, doesn't rust, and has an elegant appearance. All connection and small functional parts were printed with a 3D printer using the FDM process with PETG filament. PETG has established itself as the standard material for me due to its excellent layer adhesion, mechanical properties, and ease of post-processing such as re-drilling holes. PETG is also not much more expensive than PLA or ABS. The Bierlift is powered by a Bosch gear motor and Igus axial thread spindle. The motor requires a voltage between 19-24V, which can be supplied using an old laptop power adapter instead of the transformer listed in the bill of materials to save costs. The motor makes approximately 100 revolutions per minute with sufficient torque. The Igus thread spindle together with a plastic thread nut work maintenance-free and without lubrication. The materials for this project cost around €230. If you buy some parts like electronic components from China or use an old laptop power adapter for the Bierlift's power supply, you can save additional project costs. You can find documentation and instructions at https://www.bierlift.de/bierlift-projektbeschreibung/. The content is being continuously updated and improved.