Kossel XL Delta Printer Glasstab downpress 250mm glass

Update notes:
With v2.1, I currently don't see this as a work in progress anymore, v1 looks perhaps more refined, but it's harder to print (it needs support up to the lip), v2 is easier to print, but looks more "square", it needs one or two washers, but v2.1 doesn't need washers, but it both looks and are a bit more sturdier.

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This is a heatbed holder, that will press the heatbed downwards. I needed these myself when I printed ( http://www.thingiver