How to correct dimensions on Delta printer?

So I finally got myself a 3D printer (delta with Marlin firmware) and got my test print looking somewhat cube like. The problem I have now is that the X & Y are 1mm too short (10% off)(Z is correct).I read online that I need to change ‘DELTA_DIAGONAL_ROD’ but do I need to make this higher or lower to get accurate results?I also saw in the same post that ‘DELTA_RADIUS’ controls ‘flatness’. I was wondering if ‘flatness’ is how straight the lines are on my cube?Any help is massively appreciated! http://ift.tt/2awnR7r

Flux All-in-one or Monoprice Maker Select Ultimate??

Been thinking about getting one of these to get into the hobby. I know it might be a little overkill for a beginner, but I will tell you why I am entertaining these models.Flux All-In-One: 3D Scanner/Printer, Laser engraver (LOVE this option), 2d Drawing head (not too interested in the drawing head), Massive print height. $749(sale), $949(retail)Monoprice: 50 bucks cheaper (as of the sale on the flux right now), 20 micron print res. $699What are your expert thoughts?asI’mtypingitoutitseemsobviousnow http://ift.tt/2ag3exx