search

DeepSOIC / Lattice2

FreeCAD workbench about arrays of all sorts and kinds, and local coordinate systems
Other
53 stars 9 forks source link

Populate with copies: Build Array "Polar" Offset not working #61

Closed wpegley closed 2 years ago

wpegley commented 2 years ago

OS: Windows 10 Version 2009 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.24267 +99 (Git) Build type: Release Branch: Branch_0.19.3 Hash: 6530e364184ce05ccff39501e175cf2237e6ee4b Python version: 3.8.6+ Qt version: 5.15.2 Coin version: 4.0.1 OCC version: 7.5.3 Locale: English/Australia (en_AU)

The Attached Video & File might confirm a bug, Works fine on full circle - however I've exhausted all options on a semicircle to get the chain to offset. The polar array does move with Offset, however the parts fail to rebuild.

https://youtu.be/KRElDkAlpYc https://drive.google.com/file/d/1s2V_Wm77bde4UPMKmBb_Uz8H78vEYWfn/view?usp=sharing

DeepSOIC commented 2 years ago

it is not a bug. With 'Build Array', the first occurrence is always where the original is.

On a technical level, 'Build Array' uses the first placement of the array as the reference (or handle to move the object). The array itself shifts, but the reference placement shifts too, negating the effect. Array Radius has no effect for the same reason. Use any other populate option if you want offset to have effect.

I have an experimental branch where it is fixed, but it's unfinished.

wpegley commented 2 years ago

Understood thx for the quick reply & great work on the WB.