Snille Ikea Chair Height Adjustor

The other day one of the chairs that I keep around the office broke when sat on. After investigation I found that the part that allows the chair to height adjust had broken in two. First I tried to epoxy the part back-together but this was not fruitful. So I decided to model the part up in solid works and print a replacement. I am very happy with the results and am mostly proud of the inner threads which needed a bit of trial and error to get right but work really well. The chair works perfe