Autodesk — Lars Christensen | November 23, 2016 | Comment
In the video above we look at the Sketch Basics of constraints and dimensions for Fusion 360.
In this example, we are going to sketch up a basic shape, while following a few sketch rules. It’s worthwhile to turn on the origin, as it is important we connect our first sketch entity to it.
This is also how Fusion 360 works internally. Any time a user enters any data, it is a string and Fusion 360 has to parse the string and figure out if it’s valid and what the real value is. It converts the string into the real value in database units and uses that for all operations within Fusion 360. When you can’t control what scale your 3D program is gonna export, you know it’s always going to be the wrong scale for your slicer. Example: Fusion 360 exports to STL with 1 unit = 0.001 inch. When imported into Cura, it needs to be scaled by 0.0254 (0.001 inches = 0.0254 mm). How to import or open designs or drawings in Fusion 360. Opening a file in Fusion 360 The file can be a previously saved Fusion 360 design, or a file saved locally on your computer by performing the following steps: Click File. The Open dialog box will appear showing your cloud data. Navigate to a file listed in your cloud data and click Open to open the file. To open a file saved.
Remember, you can only sketch on a face or a plane. Since we don’t have any solids on the screen, when starting with an empty canvas, we will be picking a plane for our first sketch.
When you start your sketch, just create something close enough to your finished geometry. You will use constraints and dimensions to tie everything down afterward.
It is a good rule to start adding constraints before dimensions. Constraints are like rules for the sketches. For this example, we will apply horizontals and perpendicular constraints.
When you are applying your constraints and dimensions, your final goal is to fully define the sketch. This means that the sketch is completely fixed. Fusion 360 indicates this by turning sketch geometry from blue to black.
If you have a hard time figuring out what constraint or dimension you need to apply, you can try to drag a corner with your mouse.
It is very important that you get in the habit of fully constraining your 2D sketches, before extruding them into 3D. If not, someone can easily change the geometry by dragging a corner.
- Always sketching on a plane or a face.
- Use constraints and then dimensions
- Make sure you fully define your sketch (From blue to black).
To view more videos like this one, visit Lars Christensen’s Youtube channel.
About the Author:
Lars Christensen is part of the Technical Marketing Team at Autodesk and CAD/CAM Opinionist on cadcamstuff.com
Through his totally-addictive blog posts and videos on his YouTube channel, he shares his experience so people can create and make their product in greater happiness.
Inch To Mm Conversion Calculator
Has anyone been successful using Fusion 360 to draw, export to dxf and load into sheet cam with the proper scale? It seems that Fusion 360 is putting out DXF’s without the right scale information so when I export, load it into sheetcam, it’s 10–15 times the size it was drawn. A 12' part came out 280 inches in size. I’m not sure what the scale factor is, and I don’t know if it’s always consistent. When I loaded into sheetcam, I measured it and came up with the rough numbers, but not sure if it’s dependable. Once I scaled it down,
I opened a message on the fusion 360 forum, and folks dismiss it that Sheetcam, Illustrator, edrawings (made by solidworks), Bobcad, and other apps are American focused with inches and don’t properly read a dxf file. According to others, Bobcad blames autodesk.
Thread is here if anyone is interested — https://forums.autodesk.com/t5/fusion-3 … se#M147619
Inch To Cm
Why am I trying to use Fusion 360? Because I use it for other things like 3D printing, CNC machining, and the sheet metal bending features are fantastic for plasma cutting and then bending/fabbing.
Inch To Mm Conversion
FWIW, I’m using Inches for measurement in Fusion.
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