It’s time when once again for one more part in 3D Printering’s series of Making A Thing. Last week was a short tutorial on the beginnings of making a thing in AutoCAD. This is an very complex software application package, as well as in a wish to make things short as well as sweet, I broke this AutoCAD tutorial into two parts.
Since we already covered the 2D style part of AutoCAD, part II of this tutorial is going to turn our 2D part into a three-dimensional object. inspect out the rest of the tutorial below.
Unser Ding
Just like all of these Making a thing tutorials, we’re utilizing this item pulled out of a almost 100-year-old textbook on drawing as well as drafting. We already have a 2D projection of this part, from the previous AutoCAD tutorial, so let’s just dig ideal in.
Views as well as Presspull
In the last installment of this AutoCAD tutorial, we only utilized the ‘top’ projection. This is fantastic if you’re working in 2D, however making a 3D item is almost impossible. The very first thing we requirement to do is modification to an isometric projection in AutoCAD. To do this, just click on the ‘view’ tab as well as modification the view to SE Isometric. You’ll end up with something that appears like the photo to the left.
With being able to see the Z axis sorted out, the very first buy of service is making a 2D item 3D. You may think the command we want to utilize right here is extrude. You’d be extremely wrong, though. The command we want to utilize is called presspull.
Extrude is an AutoCAD command that pulls the highlighted objects (in our case, the lines making up our part) with the Z axis. It doesn’t make your lines a solid, though, so unless you’re creating single-thickness vases to print on your RepRap, there isn’t much utilize for extrude.
By choosing the presspull command from the ‘solid’ menu in AutoCAD, we can click on the item we want to pull up into the Z axis as well as make them solid. If you’re complying with together with this tutorial by copying all these steps, highlight the primary part of our ‘thing’, type in presspull, and type in the height you want to pull it up to. In our case, we want this part of our ‘thing’ to be 7/16″ thick, or 0.4375 in decimal inches.
Editing Solids
You’ll notice our ‘thing’ is missing something – the flange on top with the drilled hole. Not to worry, since by playing with the box and cylinder solids we can add that part in. Here’s our process in handy animated .gif format, total with a textual description of exactly how to do it.
Switch to the NE Isometric view. From the house tab, choose box. This is a tool that enables us to draw a box in three dimensions, by choosing two points on the X as well as Y axes, as well as extruding it up with the Z axis.
From the 100-year-old drawing we’re working off of, the top of our box must be 7/16″ tall for the base, then one more 7/8″ tall to get to the midpoint of the cylinder we’re going to put on. That adds as much as 1.3125 decimal inches, so click one corner of our 2D box, click the opposite corner, as well as type in 1.3125.
Now we have a bit of a challenge. We requirement to add the ‘dome’ on our part. This is quickly made with the cylinder tool, however we requirement to make sure it’s aligned on the center of the edge of the box we just made. If you’re complying with together with this tutorial, you’ve already experienced a few of the ‘snap-to’ effects, however nothing that’s a midpoint yet.
OSNAP. Yep, the command you want to type in is called osnap. That joke gets really, truly old after the very first week of a drafting class, by the way.
Osnap enables different snap-tos, enabling you to draw something from the midpoint, endpoint, as well as center. By default midpoint isn’t selected. Click that inspect box as well as get hit OK. draw your cylinder, then from the solid tab, click Union, choose both the box as well as the cylinder as well as hit enter.
We’re almost done here. All that’s delegated do are the drilled hole with this flange we just produced as well as the counter bore. very first we’ll work on the drill that’s 7/16″ in diameter. Not radius, diameter.
Using your new-found osnap skills, draw a cylinder that is 0.21875 decimal inches in diameter. pull that with our flange and subtract it, just like we unionized the box as well as cylinder above. The counter bore is left as an exercise to the visitor since It’s the precise exact same process.
Wrapping things up
Since our goal is to style a part for a 3D printer, we’ll requirement to make an STL file. This is done with the export command. It’s a basic process, however there is one catch: you need to choose all the objects in a part before saving. ideal now, our ‘thing’ is made from two parts – the weird circle thing with a slot, as well as the dome thing with a hole as well as counter bore. We might export both these parts together, however that’s rather inelegant. choose UnION, klicken Sie auf beide Teile und drücken Sie die Eingabetaste. Dann exportieren Sie in .stl.
Wirst du das ansehen. Wir haben etwas gemacht. Sie haben ebenfalls nur AutoCAD entdeckt und der Kurzurlaub entscheidend auf Ihrer Tastatur weint.
Im Vergleich zum vorherigen Tutorial, etwas mit OpenSCAD zu machen, ist ein 3D druckbarer Artikel mit AutoCAD nicht viel schwieriger, es ist nur anders. Nächste Woche, irgendwann nach Weihnachten, prüfen wir etwas mehr viel mehr Software-Anwendungen in der 3D-Style sowie unsere “Sache”, wenn Sie erneut “Ding” machen. Wenn Sie irgendeine Art von Empfehlungen in welcher Softwareanwendung i aufweisen, die ich präsentieren muss, verringern Sie in den Kommentaren eine Notiz. Ich habe den Post-it verloren, der alle Softwares hatte, die ich verwenden wollte.
