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Two screws for additional AC/DC modules fixing are missing #50

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stolens opened this issue Aug 18, 2017 · 2 comments
Closed

Two screws for additional AC/DC modules fixing are missing #50

stolens opened this issue Aug 18, 2017 · 2 comments

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@stolens
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stolens commented Aug 18, 2017

EEZ H24005: Open Source Bench Power Supply Kit Early Bird Complete kit Parts Shortage.

There is a fulfillment shortage and documentation errors in the assembly manual for this kit.

Reference:
Complete kit EEZ H24005: Open Source Bench Power Supply
http://www.envox.hr/eez/bench-power-supply/group-buy-kit-assembly.html
A work in progress (Draft 0.7)

Parts group Bag#2, part B1. Parts list indicates only 2 pieces of M3x5 mm Black, Countersunk head screws when 4 are required causing a parts shortage in the kit. These are used in mounting the AC/DC Modules to the bottom enclosure. These are illustrated and described around Figures 16 and 17 in the assembly instructions.

Recommended corrective actions:

  1. Provide 2 more of part B1 in the kit.
  2. Correct the assembly instructions to indicate 4 pcs instead of 2 pcs in bag#2, the mounting hardware for the power modules. The assembly instructions are correct, the provided hardware and the parts list are deficient.

Crowd Supply recommended I post this as an issue.

@prasimix prasimix added this to the Crowd Supply campaign issues milestone Aug 18, 2017
@prasimix prasimix changed the title EEZ H24005 Early Bird Kit Parts Shortage & Assy documentation errors Two screws for additional AC/DC modules fixing are missing Aug 18, 2017
@prasimix
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Due to logistic issues we cannot organize sending of two additional screws. Sorry for that.
But as you can see the main mean of fixing and securing AC/DC modules are mounting frame (B3) not 40 mm spacers (B2). Therefore you can left lower side of spacers unfixed, or if you really want to do that you have a great freedom to chose some other M3 screws (length could be up to 30 mm!).

Kit assembly instructions document with this note is now also available here.

@eez-open eez-open deleted a comment Aug 19, 2017
@davidcarne
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Regarding securing the spacers - I suggest against leaving one of the spacers secured with only the top screw. The spacer near the regulator module is not captive as the meanwell module doesn't have a full hole; only a notch. If the module is shaken or the screw/standoff connection isn't quite tight enough, it might shake loose leaving the standoff and screw loose in the enclosure. (This happened during my final assembly).

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