Difference between revisions of "Talk:Cosi measure new"
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as mentioned in the `general review`, assembly drawing/instruction is missing | as mentioned in the `general review`, assembly drawing/instruction is missing | ||
== Part number 2.1 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:33, 3 October 2020 (CEST) == | |||
-The material for the plate is not specified, neither on the drawing nor in the table with the parts list (it is only mentioned in the assembly instructions in github) | |||
-There are missing holes (8x?) and respective threads (M5?) on both ends of the drawn plate where plate 2? is meant to be attached (as observed in github) | |||
-The dimension for the countersunk holes for the M6 screws is not clearly specified (or not specified) and the screws that belong in those holes are not identified with a position number on the parts list. | |||
-It would be nice to see a drawing with a better distribution of the measurements to make it easier to read. Some suggestions: The holes should be represented by empty circles. The threads should be drawn around the holes. The part has a transversal symmetry that allows a reduccion of the number of written measurements. Modify the scale of the drawing to better fit the page or cut the part to allow for extra space on both ends. |
Revision as of 21:33, 3 October 2020
-- 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
Part number 2.1 -- Pomelo (talk) 21:33, 3 October 2020 (CEST)
-The material for the plate is not specified, neither on the drawing nor in the table with the parts list (it is only mentioned in the assembly instructions in github) -There are missing holes (8x?) and respective threads (M5?) on both ends of the drawn plate where plate 2? is meant to be attached (as observed in github) -The dimension for the countersunk holes for the M6 screws is not clearly specified (or not specified) and the screws that belong in those holes are not identified with a position number on the parts list. -It would be nice to see a drawing with a better distribution of the measurements to make it easier to read. Some suggestions: The holes should be represented by empty circles. The threads should be drawn around the holes. The part has a transversal symmetry that allows a reduccion of the number of written measurements. Modify the scale of the drawing to better fit the page or cut the part to allow for extra space on both ends.