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by GeneFC
Thu May 30, 2019 10:18 pm
Forum: Path/CAM
Topic: Standardized test shapes
Replies: 52
Views: 10837

Re: Standardized test shapes

here is first attempt at diamond-circle-square type test piece. It appears you are using the Part workbench operations with a Part Design mentality. Moving fully to Part Design, as Sliptonic did, will help preserve sanity. Also, the various references you gave appear to be directed at checking prec...
by GeneFC
Mon May 27, 2019 9:04 pm
Forum: Path/CAM
Topic: [SOLVED] Path deviation between Profile and Path from shape
Replies: 3
Views: 294

Re: Path deviation between Profile and Path from shape

This problem has been around in one form or another for quite a while. It is not really a bug, but rather an often ignored preference setting. The path curve generation uses precision and tolerance values to determine how closely to follow the original model. Too tight and the gcode file gets large;...
by GeneFC
Sun May 26, 2019 3:39 pm
Forum: Path/CAM
Topic: Cutting time calculation in Path Workbench
Replies: 4
Views: 252

Re: Cutting time calculation in Path Workbench

I use the Camotics simulator https://camotics.org/ to get an idea of the run time. The simulator adds up all the moves, but it does not know anything about the actual machine acceleration and deceleration. Therefore the total time is a bit optimistic. Still useful, however, to get a general idea. Gene
by GeneFC
Thu May 16, 2019 2:28 pm
Forum: Path/CAM
Topic: 3D Surface: 4th-axis Integration and more...
Replies: 69
Views: 3725

Re: 3D Surface: 4th-axis Integration and more...

So my non coding, low poly brain can understand, here a few statements: 1. we all at some point over the last years and last few posts identified that surface machining needed a better mesh to work from than the original underlying mesh coming out of a designed part. True? Actually this is not true...
by GeneFC
Wed Mar 27, 2019 3:34 am
Forum: Users Showcase
Topic: Traction engine
Replies: 10
Views: 3057

Re: Traction engine

Such simple? Julius de Waal (not Julian) is a very prolific designer who has created hundreds of Solidworks models of varying complexity. This model, the Julian Traction Engine, is intentionally designed to be quite simple. Some others, such as his Allchin design, are full featured and quite comple...
by GeneFC
Thu Mar 21, 2019 2:28 pm
Forum: Install / Compile
Topic: [Solved] Freecad do not work on new computer
Replies: 5
Views: 208

Re: Freecad do not work on new computer

This sounds like an extremely common operation which usually works flawlessly. From your description it is not possible to understand what might be wrong.

Can you explain in more detail the exact steps you took? A screenshot of the resulting pad would be useful.

Gene
by GeneFC
Thu Mar 21, 2019 2:20 pm
Forum: Help on using FreeCAD
Topic: constraints
Replies: 2
Views: 150

Re: constraints

glenn_bel wrote:
Thu Mar 21, 2019 10:32 am
Can anyone tell me the basics of this constraints thing?
In addition to what Harry said, a very simple test, at least conceptually, is whether any element (vertex, line, arc, etc.) can be moved by selecting and dragging with the mouse. If true, then the sketch is not "fully constrained."

Gene
by GeneFC
Thu Mar 21, 2019 1:43 pm
Forum: Help on using FreeCAD
Topic: Bug? - Drawing draft circle against ImagePlane makes all lines disappear
Replies: 7
Views: 276

Re: Bug? - Drawing draft circle against ImagePlane makes all lines disappear

It could be a scale issue, but it is not clear there is a bug. Instead there seems to be a simple display limitation. Under some conditions of z-shift and viewing tilt I was able to get "z-fighting", which means the display function treats the ImagePlane and the Circle to be in the same plane. If I ...
by GeneFC
Thu Mar 21, 2019 12:09 am
Forum: Open discussion
Topic: Message "The requested topic does not exist."
Replies: 5
Views: 189

Re: Message "The requested topic does not exist."

I use a similar flow to open lots of unread messages. I have never seen the error message.

Gene
by GeneFC
Wed Mar 20, 2019 11:47 pm
Forum: Help on using FreeCAD
Topic: Bug? - Drawing draft circle against ImagePlane makes all lines disappear
Replies: 7
Views: 276

Re: Bug? - Drawing draft circle against ImagePlane makes all lines disappear

When all the features are at the exact same z-level the result is often undefined. Just move the image plane in the -z direction a small amount and the other features will become visible.

Gene

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