OHO - search engine for sustainable open hardware projects - User contributions [en]

Corn mill

2021-01-05T20:24:27Z

Pomelo:

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Talk:Corn mill

2021-01-05T19:48:38Z

Pomelo: /* Part number 1.3 -- ~~~~ */ new section

== Part number 0 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:12, 3 September 2020 (CEST) ==

Some part names were changed and others were added. These names are of common use and have a good degree of specificity.

Sugerencia: actualizar nombres de partes y archivos correspondientes en el proyecto.

== -- [[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:36, 7 September 2020 (CEST) ==

HOLA TEST--[[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:36, 7 September 2020 (CEST)

== Part number 4.8 -- [[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:39, 7 September 2020 (CEST) ==

HELLO WORLD

== Part number 1 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 16:55, 7 September 2020 (CEST) ==

Item numbers have to be swapped to match the names of the individual drawings.

== Part number 1.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:29, 11 September 2020 (CEST) ==

Avoid specifying tolerances unless you are handling with elements that do need them. For example bearings, pins and axles do need them. There are different tolerances standards. I attached a PDF with general tolerances under DIN - ISO for future reference. The file has gone through ocr so one could select the text to translate.

To the extent of what is possible, avoid using decimals smaller than 0.5 unless strictly necessary. The average DIY/Maker does not have a ruler with partitions smaller than a 1 mm and generally uses a marker that is as thick. And the device itself does not need that level of accuracy for most part.

== Part number 1.1 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 22:00, 11 September 2020 (CEST) ==

This is not a symmetric part which means that a reference edge is needed to refer all the measurements to. The reference edge can be placed on either end of the part.

The 8.5mm holes look more like 6.5mm in the PDF with the screenshots. Less variation in the hardware components simplify the construction. A single zinc coated M6 bolt with a strength class of 5.8 (DIN EN ISO 898-1), which is the lowest class, can hold 800 kg of weight before it stretches and 1000 kg before it breaks.

== Part number 3 -- [[User:Fvillada|Fvillada]] ([[User talk:Fvillada|talk]]) 14:47, 14 September 2020 (CEST) ==

Can you please add the two dimension (width) in the pulley disc. Also will be great if you add the information or reference of the twos belts.

== Part number 2 -- [[User:Fvillada|Fvillada]] ([[User talk:Fvillada|talk]]) 12:20, 15 September 2020 (CEST) ==

The numbering from Lower Funnel 1 and Lower Funnel 2 is missing from the drawing

== Part number 2.1 -- [[User:Fvillada|Fvillada]] ([[User talk:Fvillada|talk]]) 12:31, 15 September 2020 (CEST) ==

correct the handwriting form ANSI (L 1 x 1 x 1_8) to ANSI(L 1x1x1/8)

== Part number 2.3 -- [[User:Fvillada|Fvillada]] ([[User talk:Fvillada|talk]]) 12:35, 15 September 2020 (CEST) ==

correct the handwriting form ANSI (L 1 x 1 x 1_8) to ANSI(L 1x1x1/8).
Also the code of product do not macht with the code in the part list

== Part number 2.4 -- [[User:Fvillada|Fvillada]] ([[User talk:Fvillada|talk]]) 12:36, 15 September 2020 (CEST) ==

correct the handwriting form ANSI (L 1 x 1 x 1_8) to ANSI(L 1x1x1/8). Also the code of product do not macht with the code in the part list

== Part number 0 -- [[User:Aquilesmorillo|Aquilesmorillo]] ([[User talk:Aquilesmorillo|talk]]) 20:19, 5 November 2020 (CET) ==

For manufacturing processes in applications that do not require greater precision, you can use measurements in millimeters, without decimals (applies to all items).

== Part number 1.1 -- [[User:Aquilesmorillo|Aquilesmorillo]] ([[User talk:Aquilesmorillo|talk]]) 20:22, 5 November 2020 (CET) ==

You can size the hole centers from the ends of the piece

== Part number 4 -- [[User:Aquilesmorillo|Aquilesmorillo]] ([[User talk:Aquilesmorillo|talk]]) 21:11, 5 November 2020 (CET) ==

You can add views of the entire assembly and indicate welding details.

This piece and similar could be manufactured with bent sheet metal

== -- [[User:Aquilesmorillo|Aquilesmorillo]] ([[User talk:Aquilesmorillo|talk]]) 19:30, 6 November 2020 (CET) ==

Hello, it would be interesting to develop the project to use a multipurpose electric motor of 110 V and 1/4 HP.

The walls of this piece of tube should not be thinner than the walls of the square section to which it is welded. The weight of the machine plus the tension of the belt exert forces on this piece which together with the vibrations generated by the engine and the mill will lead to breakage of the parts along the welds.

Talk:Cosi measure new

2020-10-12T17:59:55Z

Pomelo: /* Part number 2.3 -- ~~~~ */ new section

== -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:37, 21 September 2020 (CEST) ==

please add dimensions

===Re: Part number 1.6 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:40, 21 September 2020 (CEST) ==

"hexagon nut", not "screw nut" :)

== Part number 1.16 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:55, 21 September 2020 (CEST) ==

length is missing

== Part number 2.2 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:07, 21 September 2020 (CEST) ==

- I assume the ø16mm circles are the countersinks :)

== Part number 2.5 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:47, 21 September 2020 (CEST) ==

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.

== Part number 2.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:55, 3 October 2020 (CEST) ==

Suggestions 
- This part is symmetric. This can be use to declutter the drawing from redundant measurements and make it more readable. 
- Not all holes diameters need to be there, specially if they are all equal. Add one measurement and make a note on the drawing to clarify. 
- What is the optional countersink for? No need to specify diameter.

== Part number 2.3 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 19:59, 12 October 2020 (CEST) ==

I am familiar with the complications of Free CAD in general and technical drawings are also a complex matter. It would be nice nevertheless to see a bit of consistency across the drawings when placing the measurements. Sometimes an isometric view in a corner of the drawing could help to give a better idea of how the part looks in 3D. Transparent/wire views also help to uncover some hidden features in simple parts.

Talk:Cosi measure new

2020-10-03T19:58:05Z

Pomelo: /* Part number 2.1 -- Pomelo (talk) 21:33, 3 October 2020 (CEST) */

Talk:Cosi measure new

2020-10-03T19:57:40Z

Pomelo: /* Part number 2.1 -- Pomelo (talk) 21:33, 3 October 2020 (CEST) */

== -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:37, 21 September 2020 (CEST) ==

please add dimensions

===Re: Part number 1.6 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:40, 21 September 2020 (CEST) ==

"hexagon nut", not "screw nut" :)

== Part number 1.16 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:55, 21 September 2020 (CEST) ==

length is missing

== Part number 2.2 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:07, 21 September 2020 (CEST) ==

- I assume the ø16mm circles are the countersinks :)

== Part number 2.5 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:47, 21 September 2020 (CEST) ==

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.

== Part number 2.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:55, 3 October 2020 (CEST) ==

Suggestions 
- This part is symmetric. This can be use to declutter the drawing from redundant measurements and make it more readable. 
- Not all holes diameters need to be there, specially if they are all equal. Add one measurement and make a note on the drawing to clarify. 
- What is the optional countersink for? No need to specify diameter.

Talk:Cosi measure new

2020-10-03T19:57:07Z

Pomelo: /* Part number 2.2 -- Pomelo (talk) 21:55, 3 October 2020 (CEST) */

== -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:37, 21 September 2020 (CEST) ==

please add dimensions

===Re: Part number 1.6 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:40, 21 September 2020 (CEST) ==

"hexagon nut", not "screw nut" :)

== Part number 1.16 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:55, 21 September 2020 (CEST) ==

length is missing

== Part number 2.2 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:07, 21 September 2020 (CEST) ==

- I assume the ø16mm circles are the countersinks :)

== Part number 2.5 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:47, 21 September 2020 (CEST) ==

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.

== Part number 2.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:55, 3 October 2020 (CEST) ==

Suggestions 
- This part is symmetric. This can be use to declutter the drawing from redundant measurements and make it more readable. 
- Not all holes diameters need to be there, specially if they are all equal. Add one measurement and make a note on the drawing to clarify. 
- What is the optional countersink for? No need to specify diameter.

Talk:Cosi measure new

2020-10-03T19:55:53Z

Pomelo: /* Part number 2.2 -- ~~~~ */ new section

== -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:37, 21 September 2020 (CEST) ==

please add dimensions

===Re: Part number 1.6 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:40, 21 September 2020 (CEST) ==

"hexagon nut", not "screw nut" :)

== Part number 1.16 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:55, 21 September 2020 (CEST) ==

length is missing

== Part number 2.2 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:07, 21 September 2020 (CEST) ==

- I assume the ø16mm circles are the countersinks :)

== Part number 2.5 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:47, 21 September 2020 (CEST) ==

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.

== Part number 2.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:55, 3 October 2020 (CEST) ==

Suggestions 
-This part is symmetric. This can be use to declutter the drawing from redundant measurements and make it more readable. 
- Not all holes diameters need to be there, specially if they are all equal. Ad one measurement and make a note on the drawing to clarify. 
- What is the optional countersink for? No need to specify diameter.

Talk:Cosi measure new

2020-10-03T19:33:57Z

Pomelo: /* Part number 2.1 -- ~~~~ */ new section

== -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:37, 21 September 2020 (CEST) ==

please add dimensions

===Re: Part number 1.6 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:40, 21 September 2020 (CEST) ==

"hexagon nut", not "screw nut" :)

== Part number 1.16 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 13:55, 21 September 2020 (CEST) ==

length is missing

== Part number 2.2 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:07, 21 September 2020 (CEST) ==

- I assume the ø16mm circles are the countersinks :)

== Part number 2.5 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk: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 -- [[User:Martin|Martin]] ([[User talk:Martin|talk]]) 14:47, 21 September 2020 (CEST) ==

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.

Corn mill

2020-09-27T19:21:02Z

Pomelo:

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|certificate_requested=No
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}}

Talk:Corn mill

2020-09-11T20:00:52Z

Pomelo: /* Part number 1.1 -- ~~~~ */ new section

== Part number 4.3 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 15:46, 3 September 2020 (CEST) ==

1, 2, 3, probando

== Part number 0 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:12, 3 September 2020 (CEST) ==

Some part names were changed and others were added. These names are of common use and have a good degree of specificity.

Sugerencia: actualizar nombres de partes y archivos correspondientes en el proyecto.

== -- [[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:36, 7 September 2020 (CEST) ==

HOLA TEST--[[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:36, 7 September 2020 (CEST)

== Part number 4.8 -- [[User:Consu|Consu]] ([[User talk:Consu|talk]]) 11:39, 7 September 2020 (CEST) ==

HELLO WORLD

== Part number 1 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 16:55, 7 September 2020 (CEST) ==

Item numbers have to be swapped to match the names of the individual drawings.

== Part number 1.2 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 21:29, 11 September 2020 (CEST) ==

Avoid specifying tolerances unless you are handling with elements that do need them. For example bearings, pins and axles do need them. There are different tolerances standards. I attached a PDF with general tolerances under DIN - ISO for future reference. The file has gone through ocr so one could select the text to translate.

To the extent of what is possible, avoid using decimals smaller than 0.5 unless strictly necessary. The average DIY/Maker does not have a ruler with partitions smaller than a 1 mm and generally uses a marker that is as thick. And the device itself does not need that level of accuracy for most part.

== Part number 1.1 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 22:00, 11 September 2020 (CEST) ==

This is not a symmetric part which means that a reference edge is needed to refer all the measurements to. The reference edge can be placed on either end of the part.

The 8.5mm holes look more like 6.5mm in the PDF with the screenshots. Less variation in the hardware components simplify the construction. A single zinc coated M6 bolt with a strength class of 5.8 (DIN EN ISO 898-1), which is the lowest class, can hold 800 kg of weight before it stretches and 1000 kg before it breaks.

Talk:Corn mill

2020-09-11T19:29:38Z

Pomelo: /* Part number 1.2 -- ~~~~ */ new section

Talk:Corn mill

2020-09-07T14:55:33Z

Pomelo: /* Part number 1 -- ~~~~ */ new section

Talk:Corn mill

2020-09-03T19:17:57Z

Pomelo: /* Part number 0 -- Pomelo (talk) 21:12, 3 September 2020 (CEST) */

Talk:Corn mill

2020-09-03T19:12:04Z

Pomelo: /* Part number 0 -- ~~~~ */ new section

Talk:Corn mill

2020-09-03T13:46:06Z

Pomelo: /* Part number 4.3 -- ~~~~ */ new section

== Part number 4.3 -- [[User:Pomelo|Pomelo]] ([[User talk:Pomelo|talk]]) 15:46, 3 September 2020 (CEST) ==

1, 2, 3, probando