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The .step files for the hydraulic press will be available to download from my patreon page;
  / newyorkshireworkshop  

The ovaled cylinder; obviously I would weld the flanges to cylinder BEFORE assembling the frame, the problem here was that I couldnt get access to weld the flanges all round the cylinder so just welded the sides where I could reach. This shrunk those opposing sides which pulled the cylinder into an oval shape. obviously the solution is to weld the flanges to the cylinder BEFORE assembling the frame, Lesson learned!