axis reference for polar not working

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Vincent B
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axis reference for polar not working

Post by Vincent B »

I would like to get a polar around an axle of a sketch. Why a single edge from a sketch is not working?
neither array, polar or circular use the edge for axle.
...
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.26858 (Git)
Build type: Release
Branch: master
Hash: e209bc706d35121098f9bac779bc6b09c24ddd95
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.3
Locale: French/France (fr_FR)
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array_axis.FCStd
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TheMarkster
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Re: axis reference for polar not working

Post by TheMarkster »

You might need to use a datum line.
chrisb
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Re: axis reference for polar not working

Post by chrisb »

Vincent is talking about the Draft PolarArray and CircularArray.
That would indeed make a good feature request, similar to the PartDesign "Select reference".
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TheMarkster
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Re: axis reference for polar not working

Post by TheMarkster »

I know he's talking about Draft workbench. I remember some time ago needing to use a datum line as this reference. Any straight edge should work theoretically, but I needed to make a datum line.

Edit: file attached.
array_axis_markster.FCStd
(8.53 KiB) Downloaded 13 times
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Vincent B
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Re: axis reference for polar not working

Post by Vincent B »

its working with a datumline, but could works with any edge is it?
and circular array seems bugged too.
chrisb
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Re: axis reference for polar not working

Post by chrisb »

TheMarkster wrote: Thu Jan 27, 2022 6:18 pm I remember some time ago needing to use a datum line as this reference.
It's not really the DatumLine, although it serves here very well, because it cannot be separated from its Placement. You can select any other object as well for the Polar or CirularArray, and it will be aligned according to the Placement.
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thomas-neemann
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Re: axis reference for polar not working

Post by thomas-neemann »

here is a suggestion using lattice2


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