operating dollhouse double hung window

I found a model for a moving double hung window for dollhouse on printables.com After scaling to fit an inherited dollhouse I found several adaptations necessary for reliable printing and movement on an A1 mini printer. The original author declared no supports needed to print, however I found that much stringing happens on the casing due to the ‘printing in air’ rendering the casing unusable. As a warning, allowing a slicer to auto-place supports makes support removal a brutal task. On the attached bambu 3mf file the supports are hand placed to provide ‘just enough’ support to control stringing on the bridges. The supports I painted in are the MINIMUM. If you reslice with your profiles I strongly suggest hand painting supports, use Tree(manual) type and style Tree Slim, on baseplate only needs to be checked, 1mm branch diameter and 60º branch angle. I used hollow base pattern on the support per a suggestion elsewhere but found that didn't make any difference. I can't say it eno