Talk:Cosi measure new

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Revision as of 13:47, 21 September 2020 by Martin (talk | contribs) (→‎Part number 1 -- ~~~~: new section)

-- Martin (talk) 13:27, 21 September 2020 (CEST)

- Software installation instructions couldn't be loaded from OHO's page ("Failed to load PDF document.")

- License is CERN OHL **v1.2**

- [source files](https://github.com/opensourceimaging/cosi-measure/tree/master/Mechanical%20System/Complete%20System) for mechanical assembly (complete system) are missing

- [manufacturing instructions](https://github.com/opensourceimaging/cosi-measure/blob/master/Mechanical%20System/2019-01-11_cosi-measure_v1.0_mechanical_assembly_instructions.pdf) are missing → those are important to understand the mechanical assembly of the complete system as there're just Fusion360 files and PNG exports available

- bottom line in mechanical drawings is a little misleading :) → "This drawing is our property; it can't be reproduced or communicated without our written consent." → I'm seeing the CERN OHL v1.2 as such a written consent :)

Part number 1.6 -- Martin (talk) 13:37, 21 September 2020 (CEST)

please add dimensions

Re: Part number 1.6 -- Martin (talk) 13:50, 21 September 2020 (CEST)

Well, my assumption is that this is not an individual component for the mechanical assembly, but rather the material for self-designed components (aluminium plates). Hence bill of material and 'shopping list' are mixed. Nothing dramatic; for best practice I'd suggest to have

1. a neat bill of materials

2. an optional, separate shopping list

As said, nothing crucial. The relevant information is here.

Part number 1.25 -- Martin (talk) 13:40, 21 September 2020 (CEST)

"hexagon nut", not "screw nut" :)

Part number 1.16 -- Martin (talk) 13:55, 21 September 2020 (CEST)

length is missing

Part number 2.2 -- Martin (talk) 14:01, 21 September 2020 (CEST)

- Diameter for the 3rd hole (from the bottom left) is not specified. I assume it's also 5.5mm and needs a countersink

Part number 2.3 -- Martin (talk) 14:07, 21 September 2020 (CEST)

- I assume the ø16mm circles are the countersinks :)

Part number 2.5 -- Martin (talk) 14:23, 21 September 2020 (CEST)

- really no countersink for the ø6mm holes this time?

- diameter specification of holes is a little ambiguous, but one can guess from the drawing → shouldn't be a problem

Part number 2.8 -- Martin (talk) 14:35, 21 September 2020 (CEST)

- remove the second half of the note "Alternatively you can also make through hole …" → given that I bought the screws from the BoM, I'd rather make some threads :) (also: this note could be applied anywhere; unambiguous designs are better; skilled people may come up with personal deviations and forks themselves)

Part number 1 -- Martin (talk) 14:47, 21 September 2020 (CEST)

as mentioned in the `general review`, assembly drawing/instruction is missing

OPEN HARDWARE OBSERVATORY 2020
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