Corner pieces for Lidl insect screen / Eckstücke für Lidl Insektenschutzgitter

prusaprinters

Our basement windows urgently needed protection against the invasion of spiders if we wanted to sometimes ventilate the rooms. As the windows are only 90x40cm even the smallest type would have been far to large which equals a lot of scrap.Now they had one for max. 130x150cm windows on sale (part # 100322242002, 19.99€) and I decided to make two out of one which requires additional corner pieces. Quick simplified design omitting everything I don't need and the first print was successful. The screens will be screwed onto the frame anyhow so no need for all the fancy stuff and the DIY corners got the holes already build in. Why holes? The windows don't allow the use clamps (which I don't like anyhow). The are screwed to the window frames in the corners.Printed in black PETG with 0.3mm adaptive layers, 15% cubic infill with dual lines and support from bed only. Anthracite (or white for the white version) would match better but I didn't have that on hand.Residue from the support has to be completely removed to make them fit into the aluminum channels.As I had another window which would benefit from a screen but all the left over frame pieces were to short I also designed a coupler. It doesn't look to good but this window is very well hidden.The file Lidl-screen-coupler-5mm is the complete coupler with a center that adds 5mm to the overall length. The Lidl-coupler center/left/right can be used to make custom length couplers by stretching the center part to the desired length and complete it with the left and right part. The center offset is 3.25mm towards the top. At least in Cura it is pretty easy to assemble it (didn't try it in another slicer)