#Copyright logo protel 99se software
#Copyright logo protel 99se trial

WeвЂ™ll need to create two sketches for this one for the through hole, and a second for the counterbored hole. Select the face on the flange we want to drill our holes into. Play around with the position until everythingвЂ™s correct, and we have 90% of our thing done. ThereвЂ™s a tab at the bottom labeled вЂDataвЂ™, and this is where weвЂ™ll place our flange at the end of the вЂwasherвЂ™ part of our thing. In the Part workbench, select the flange you just made in the part tree for our thing. After that, weвЂ™ll need to put the holes in our flange. Our parts are there, but weвЂ™ll need to arrange them correctly and join them somehow. When we go back to the Part workbench, weвЂ™ll see something like the pic to the right. With that done, itвЂ™s time to assemble these two parts. When weвЂ™re done, weвЂ™ll have something that looks like this: Do that by going int the Part Design workbench, drawing a fully constrained part, and extruding it just like we did with the first part. To add this, weвЂ™ll need to create the outline of the вЂcountersunk flangeвЂ™ part of our thing. Right now we have the вЂbottomвЂ™ of our thing designed, but weвЂ™re still missing the flange with the countersunk hole. We still need to make the other part of our thing, the вЂcountersunk flangeвЂ™, as I like to call it. In the 3D view, click the edge separating the big вЂwasherвЂ™ of our part and the long flange.ДЄfter that, we get a fairly good-looking part. Now that weвЂ™ve extruded our thing into the Z axis, we can finally add those fillets. While we couldnвЂ™t do the вЂinteriorвЂ™ fillets on our part in the Part Design workbench вЂ“ the fillet command only works between two lines, not a line and an arc. Switch over to the isometric view, set the pad parameters for the correct depth of extrusion, and youвЂ™ll get an awesome filled solid. The tool we use for extrusion is Pad, so click on that. Click Close on the Tasks bar, and youвЂ™ll end up with a few options: Create Sketch, Pad, Pocket, Revolution, and Groove. Once we have our part drawn and constrained, the Solver on the left hand toolbar will tell us we have a fully constrained sketch. Slicers allow you to scale a print anywayвЂ¦ FreeCAD is metric only, so IвЂ™m designing everything around eigths of an inch. Note that I really donвЂ™t care about the absolute dimensions of what IвЂ™m designing. Now itвЂ™s time to move on to the third dimension, extruding our thing up 7/16th of an inch.

#Copyright logo protel 99se trial

After a little trial and error, we end up with something like the pic below, a fully constrained sketch of most of our switch base: Finishing off our вЂthingвЂ™ is just a process of drawing lines, arcs, and fillets, constraining them, and tearing your hair out at the inability of FreeCAD to show you the one unconstrained element in your sketch oh my god. In the last installment of this tutorial, we went over installing FreeCAD, the basics of parametric modelling, and drawing a few circles and lines. HereвЂ™s the Google Scanned copy of the 2nd edition. If anyone out there has the 1st or 2nd edition of Engineering Drawing (French, 1911 or 1918), please scan it (its public domain) and post a link. My copy is in dead tree format, and I havenвЂ™t yet built a book scanner. ItвЂ™s from an 80-year-old book on drafting.ДЄ few people have asked me for a. Our Thing, And Where We Left Off Last Time

Read on for the second part of our FreeCAD tutorial HereвЂ™s some links to previous Making A Thing tutorials, doe: ItвЂ™s an amazingly powerful tool, and not itвЂ™s finally time to complete our model of a strange object ripped from the pages of an 80-year-old drafting textbook. Last week we took a look at FreeCAD, a free, open source parametric modeller.

#Copyright logo protel 99se software

ItвЂ™s time once again for another installment of a Making A Thing tutorial, where I design the same part, over and over again, in multiple 3D design software packages.