Brother AX-45 Bedienungsanleitung / Daisy Wheel Typewriter Word Processor

Da man diese Anleitung vom Brother nicht mehr bekommen kann (nicht mal wenn man sehr schön drum bittet), habe ich meine eingescannt und daraus eine saubere, druckbare PDF generiert. Diese Schreibmaschinen sind seit so langem nicht mehr auf dem Markt, dass selbst Brother tut so, als wenn sie nicht von ihnen wären. Ich nehme an, mit der Veröffentlichung dieser Kopie entsteht kein nennenswerter Schaden:
Deutsche Bedienungsanleitung Brother AX-45 (~45MB)

As you can’t get it from Brother, not even if you ask nicely (I did), I have scanned my manual and assembled it into a PDF file ready for (re-)print. As these typewriters were pulled from the market so long ago, that even Brother doesn’t remember them (officially), I think there should not be any issue with publishing this file online:
GERMAN instructions for Brother AX-45 (~45MB)

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LEGO Spike – Stall detection – how is the motor control working

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On motion control with LEGO Spike

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LEGO Spike Color Sensor (Prime or Essential)

The Spike Color Sensor is often used for tracking markings on the floor in activities like FLL or WRO challenges. It is important to understand, that the sensor has a certain size of a spot that it watches. To determine exact dimensions of the spot I have built a test rig:

Spike Prime Color Sensor Calibrator
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Straightening warped LEGO plates, twisted frames and bent axles

Recently I have purchased a second-hand LEGO set only to find some large, rare (as in: expensive to replace) parts WARPED.

I searched the net and found several threads where people reported on similar issues, but no good solution. So I have put my experience with plastics to work and found an easy fix.

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