Freecad lessons6/20/2023 ![]() ![]() It allows the extention of a certain face of a body. So I tried to pad again with the Reverse option selected while also setting the Custom Direction to -1 in the z-axis, but this gave an error that the resulting body wasn't solid.įinally, this video revealed to me that the Trimex tool in the Draft workspace is really what I was looking for. The pad worked this time, but it extruded in the wrong direction, which led me to believe that I may have created the sketch from the wrong side. I went back to the Pad tool, but this time checked the Reverse toggle. Selecting the face with the Extrude command did not work, but when I selected the sketch, I got this strange, but closer, result. I realized that I am actually supposed to use the Extrude command in the Part workspace, not the Pad tool for this scenario. For some reason, I still wasn't able to select the profile of the sketch. Instead, I used the parameters and created equivalent circles on the sketch plane. The problem was that I recieved an error when trying to project the sketch geometry. Therefore, I instead created a sketch along the top plane, projected the geometry into the sketch, moved the sketch under the body, and used that to create the extrusion. I'm not sure why this wasn't an option, and I toggled the different settings, but nothing worked. When I tried to pad the top ring of the body, I was unable to add the profile for some reason. My understanding is that the Thickess tool is the same as the Shell tool in Fusion360. I created a parameter for the thickness and in entered it in the following screen. Next, I selected the top face of the loft and activated the Thickness subtractive tool. ![]() Then the loft was created, and I pressed OK! I pressed OK because the sketches were already added, then I was presented with another screen where I could add the two sketch profiles by pressing them. I clicked Create new body, but then was unable to add the sketch profiles! Therefore, dragged the sketches under the empty body the loft command created and tried to add the bodies to the loft again. I then moved to the Part Design workspace and tried to create a loft between the sketches, but I was presented with this screen. When I clicked the formula editor for the position, I got a Failed to Parse error, so I used the drop down and individual edited the z variable, and this worked! So instead, I just put in 10mm temporarily then tried to edit the position variable in the inspector for the newly-created sketch. When I created a second sketch, I tried to type in the parameter in the Offset Sketch input field, but this did not work. I realized that I had to first click on the Formula Editor button then type in the variables. When I tried to write the formula for the circle diameter, it did not work and simply reverted to the previous value. I then went to the Sketch workspace and outlined the profiles for the loft. I also added an alias for each parameter. I started by navigating to the Spreadsheet workspace, creating a spreadsheet, and defining user parameters for the bottom radius, top radius, loft height, and extrusion height. Using this video to learn about User Parameters in spreadsheets for parametric design in FreeCAD, I wanted to design the base of the cup holder mechanism that I made in Fusion 360. It all went smoothly and the tutorial was very easy to follow. I then followed this tutorial to create a hinge. Even so, I do like the ability to easily fit the view to any object in the hierarchy and that there are so many open-source workbenches available. For example, this is only the shortcuts for the Sketch workbench. There are so many workbenches and tools that I can't easily navigate through. My first impression was that the UI is extremely overwhelming. I was then presented with the same screen as the tutorial, starting at 3:23. To get started, I completed this beginner's tutorial to learn how to use FreeCAD. I downloaded FreeCAD 0.20.2 for Windows from this link. Week 17: Invention, Intellectual Property and Business Models.Week 14: Interface and Application Programming.Week 13: Embedded Networking and Communications.Week 10: Mechanical Design, Machine Design.Week 1: Principles and Practices, Project Management. ![]()
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