[OpenSCAD] There's a glitch with my dimensions...

Verachten Bruno gounthar at gmail.com
Wed Jul 24 08:47:07 EDT 2019


Thanks for the tip, I will change it and see what happens.

On Wed, Jul 24, 2019 at 2:41 PM nop head <nop.head at gmail.com> wrote:

> I think it is because you have centered the cylinder, so only half is
> below the origin and the other half embedded in the block.
>
> On Wed, 24 Jul 2019 at 13:21, gounthar <gounthar at gmail.com> wrote:
>
>> Hi there,
>>
>> I'm a total beginner with OpenSCAD, and a novice regarding CAD.
>> I used to work with a pencil and a piece of paper, and it was during the
>> last century...
>> Anyway, I spent some time with onShape and produced  this
>> <
>> https://github.com/gounthar/MerryKombo/blob/CAD/Box%20Base%20With%20Raspi%20Before%20Router%20Addition%20Drawing%201.pdf>
>>
>> .
>> I'd like to do the same kind of thing with OpenSCAD, so I started with a
>> small part of this design, the lens support.
>> Here is my source file:
>> https://github.com/gounthar/MerryKombo/blob/CAD/camera-support.scad
>> <https://github.com/gounthar/MerryKombo/blob/CAD/camera-support.scad>  .
>> I should maybe have started with the center and used mirror(), but anyway,
>> it is what it is.
>>
>> The problem I have is that I was expecting the pillars to be 3.6mm high,
>> but
>> they're not, something around 2mm high (see  there
>> <https://github.com/gounthar/MerryKombo/blob/CAD/camera-support.png>  ).
>>
>> I must have missed something essential with OpenSCAD, because it can't be
>> a
>> bug, it has to be a huge misunderstanding on my side.
>>
>> So... what did I do wrong?
>>
>> Thanks in advance,
>>
>> Bruno
>>
>>
>>
>> --
>> Sent from: http://forum.openscad.org/
>>
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-- 
Bruno Verachten
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