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Showing posts with the label Test Model

Update: X and Z axis chains and storage drawers

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This is a brief update and progress and information about a new release of the X and Z axis cable chains and the real (finally) release of the storage drawers. To the last point first: I took some further measurements and the problem I had with fitting a pair of drawers side by side as they were designed was not at all due to tolerances, as I'd first thought, but rather because of some significant dimensional inaccuracies in my first test build. In hindsight, the print was done quite early in the build, before I'd tuned very much at all. So, I hope to release the drawers very soon after the false start before.  Similarly, I'm just creating a time-lapse of a print to demonstrate the new cable chains in use in earnest. I plan to release this alongside the models themselves very soon too. Another thing I have now been able to do is connect the fanless PSU. Not that it should be a huge surprise, but the difference in noise levels is very significant indeed. The fan in the stand...

Bed levelling woes

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One of the effects I have noticed during testing is that although I now have ABL set up and (seemingly) working, it doesn't seem to be as accurate as I'd expected. I have analysed the mesh and the right side of the bed is slightly lower than the left. By watching the printer I can see that the Z axis is certainly moving during a single layer of a print, so something is clearly happening.  Despite this, the print quality is very poor on the right side, whereas the left is very good.  Left side of bed Right side of bed To te st this further, I created a test model (I know that there are hundreds, but I couldn't find one which was quite right for what I wanted) and printed that several times. Each time, the right (lower) side of the bed was printing with much poorer quality than the left.  My test model My first thought was that perhaps my Z steps/mm were wrong and the printer was simply not moving the correct amount. I re-calibrated and tested this twice, but everything see...