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Without the bolt_ds_tol the drilling is too tight to be used for
tolerance testing without drilling manually.
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Based on tolerance test printing.
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Result from test print.
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This is the result from a tolerance test printing.
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Reducing from +/- 3 to +/- 2 reduces printing time for the tolerance
test.
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The printer resolution is set to 0.15 mm so this is a useful step size.
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This makes the results of tolerance tests available for the actual PCB
case.
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There used to be two panels but this is not required.
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The width and height tolerance test was unusable because the thickness
tolerance was not added. Thus the test part did not fit inside the slot.
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The current tolerance values should be written down inside the files
covering the related parts. The tolerance_tests.scad file should include
those values.
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nut_d should be used exclusively to avoid handling to alternatives for
the same parameter.
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This makes the file structure and module naming simpler and allows to
easily print all tolerance tests at once. This is helpful to validate a
specific printer setup.
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This allows to check the tolerances for panel width and length.
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This tests makes it easier to fine-tune the slot width which holds one
of the two panels.
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This should make sure the right hole diameter is selected for bolts.
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This bolt is a good starting point for most PCB cases.
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This special variable decides on the level of detail these cylinders are
rendered with. Since this depends also on the size and thus on the
individual cylinder it is also set per cylinder individually.
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The printer configuration should not only be added to the repository but
instead should also be used for the default Make-based builds of
mechanical parts.
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Adding a slicer configuration is important to have reproducable printing
results. While a default configuration should be sufficient to print the
part roughly it is especially important for correct tolerances that the
printer settings are exactly the same.
Starting with the i3 Mega S provides only configuration for one 3D
printer. Nevertheless additional configurations for other printers can
be added easily.
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It is quite easy to add bugs to *.scad files and miss them. Warnings can
be hidden inside the long log output.
This commit will ensure that bugs are detected earlier.
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The holes used to be all the same size. This is clearly a bug since the
test's intention is to check different sizes.
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That way it is easier to get that the test is built and not nut when
building the corresponding file.
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The old name was not descriptive and now the file contains only
parameters.
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This avoids unrequired usage of other source files and cleans up the
common.scad file.
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According to the 'Mastering OpenSCAD' [1] book it is not recommended to
set these variables globally. They should be used as local as possible
and only if needed.
This rule makes sense to allow making the model as rough as possible and
only increase the detail level if required to reduce build times.
[1]: https://mastering-openscad.eu
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This part can be used to fine-tune the tolerance for the used nuts which
have to fit tightly into a 3D-printed part.
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The filename `common.scad` does not explain anything about its content.
With this commit the last part - rounded_cube - is moved to its own
file.
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Having named files for these parts makes them more visible inside the
project. They used to be in the `common.scad` file which does not
explain anything by its name.
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This should be more decoupled because it is not specific to soundbox. It
might be later extracted to a library repository.
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The build system of this repository should be used from the repository
root. Subdirectories should only contain additional *.mk files which
will be included by the central Makefile.
This should allow to have dependencies between subdirectories if
required and easily allows to build everything.
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This code used to be developed outside a Git repository. It is moved
here to support the development workflow by frequent commits.
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This folder will contain mechanical design files for soundbox which is
protected by the strongly reciprocal CERN open hardware license.
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