First off, hello. I've just joined this forum as I'm seriously knuckling down to learn Inventor (and others).I've been a long term user of Blender but it's a tad different to parametric modelling. I'm working through some exercises watermarked by KKM which is available online.I'm confused at one of the drawings that I'm to model a Pivot Arm from.I'm given radii for some of the edges of a feature but it's as though the drawing isn't giving me exact details of where the center of these radii are supposed to be. I can get the model to work but I can make some drastic changes to the location of the center of the radii which still makes the extrusion work but this can't be right. If it were for a 3D model for marketing, it would suffice but for manufacture, it has to be correct so I need to nip this.Is it allowed on this forum for me post an image or link to the drawing in question so I can highlight the specific areas in question?I have a feeling I am missing something very basic on this exercise.

Hello Tomocr1978, yes you can post an image here in the discussion by clicking on the Full Repply Editor, then the insert image icon ( the green tree ) and ask for some help.If it's Inventor it's not for me.You can also post an Inventor or AutoCAD file of your own that we can work on.Eventually place it in the Cad/Bom Blocks library for it having a life after.

Your answers are correct.snaptube vidmate