Adjustable-Height Stand

A bean-to-cup machine was one of our gifts to ourselves this Christmas. Overzealous health and safety concerns, or perhaps a desire to sell an accessory later or promote the sale of more expensive machines seems to have led to an extremely short "wand" for fluffing and heating milk. The end result ~~is~~ was that you have to stand and hold your milk jug. Cue 3d printer ...

So what we have here are three screws which, between them give an adjustable height of between 60mm and, say, 160mm in he