Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen gezeigt.

--- projekte:2021:eurotwo [2021/04/16 22:12]
max [Errata]
+++ projekte:2021:eurotwo [2022/05/04 14:26] (aktuell)
max
@@ Zeile 6: / Zeile 6: @@
 Projectstatus: [[projekte:projektstatus|{{:projekte:wip.png?50|}}]]
+[[regeln:labels|{{https://labelgenerator.vspace.one/notapplicable/Max Noppel.png?200|}}]]
 Documentation: [[projekte:eurotwo#Documentation|here]].
@@ Zeile 16: / Zeile 18: @@
 ==== Status ====
 Follow [[https://twitter.com/hashtag/eurotwo?src=hashtag_click|#eurotwo on twitter]]. :)
+=== 2021-05-06 ===
+Seems that the connection solution is not optimal. The Cu zone is to close to the mounting hole. So the cable scratches the solder mask and creates short circuits. My current solution is to use plastic washers to create some distance. But now the nuts on the bottom of the boards are required to directly touch the boards for a reliable connection. Microscope images of the follow.
 === 2021-04-15 ===
@@ Zeile 112: / Zeile 117: @@
 ==== Errata ====
 === ALL ===
-  - Clearing around M2 holes bigger!
+  - Clearing around M2 holes bigger! The problem is that after some mountings and unmountings the soldermask gets holes and the Cu gets through. You got a short circuit than. Not good! Workaround: [[https://www.ebay.de/itm/Unterlegscheiben-DIN125-ISO7089-Kunststoff-Polyamid-PVC-Beilagescheiben-M2-M33/264013463838?ssPageName=STRK%3AMEBIDX%3AIT&var=563544541342&_trksid=p2060353.m2749.l2649|DIN125-ISO7089-Kunststoff-Polyamid-PVC-Beilagescheiben-M2]]
 === HalfAdder rev1 ===
   - Silkscreen: AxorB -> A&B