Can you convert a single-hose portable AC unit to a double-hose setup and gain tons of efficiency ? And are more hoses more better ? Read on. The answer in short is yes. But it's way more complicated than just fixing a second hose to the back air inlet. But ! With this one you just need to attach a second hose securely. Done ! But what if we feed it the warm air from the top of the room ? Here comes the 3rd hose. The final result is surprisingly effective, and beat my expectations. If you like what you see, and want to help out making this sort of development and production possible in the future, please consider a small donation at: https://www.paypal.me/dherrendoerfer This helps a lot in keeping the channel and its content free and un-influenced. ... https://www.youtube.com/watch?v=hsNXsqIgaaU

My first (lengthly) run-in with the updated EleksMaker EleksLaser A3 Pro 2500mW Laser Engraving machine. This video covers everything from the box it came in, through the whole process of building it, to the first lased lines. ... https://www.youtube.com/watch?v=P9j00_P47sM

I'm buying the cheapest selfPV kit currently available from Germany, and I'm taking you along for the ride. Final Episode: Yes! this was a good investment. If the power generation of this kit remains consistent for 200 days a year, then the kit will have paid for itself in 3 to 3.5 years. Everything after that is a net gain. What's happening ? Day 1: Placed the order. Received the order confirmation. Day 2: Got mail from some self-service customer service portal. Can't access it. Day 3: Requested info through customer chat. Received reply within 2 Minutes, order may be delayed due to personell shortage atm from sickness. Day 4: Upload of Episode 1. Day 5-8: Profiling of my houses power consumption. Day 9: Delivery of the solar panels, and upload of Episode 2. Day 12: Delivery of the profiles and mounting parts for the kit. Upload of Episode 3 Days after that: Final installation and test. For reference, this is the kit I ordered: https://greenakku.de/selfPV/selfPV-Komplettpaket-740Wp::3417.html If you like what you see, and want to help out making this sort of development and production possible in the future, please consider a small donation at: https://www.paypal.me/dherrendoerfer This helps a lot in keeping the channel and its content free and un-influenced. ... https://www.youtube.com/watch?v=GhhtqBUfnN8

This is a long video .... I have some updated parts to test out, and I want to try out multi-color and materials. Come along for the ride. The TEVO titan extruder drivers need to be replaced by something else, and in this example it sort-of works out - but then everything goes wrong ... The Bad Robin 3D Printer is an open source project for an easy to build 3D printer. Find the project here: https://github.com/dherrendoerfer/The-Robin-3D-Printer-Project/tree/master/STL-Files/Bad-Robin If you like what you see, and want to help out making this sort of development and production possible in the future, please consider a small donation at: https://www.paypal.me/dherrendoerfer This helps a lot in keeping the channel and its content free and un-influenced. ... https://www.youtube.com/watch?v=fKkK9YMjXvM