Questions tagged [drafting]
Questions about tools and techniques for technical drawing. If your problem is mainly with a particular software package, consider using a tag for that software package instead.
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Fillet Indicator or Potential Tolerancing
Currently working on some drawing from the Spitfire Mk. V. I am working on this piece from part of the undercarriage legs.
I am working with Inventor LT 2021. In the source drawing I can see ...
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how to interpret ISO2768-mK angular tolerance
How to apply tolerance for angle based on ISO-2768-mK? Cause I am confused about the statement "Permissible deviations in degrees and minutes for ranges in nominal lengths". Lets say I have ...
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Drafting - Specifying multiple hole quantities
First post in this stack but curious on if there is a 'right' answer (within Australian or ISO standard) for how to quantify numerous holes of same size/properties on a drawing. In the past I've seen (...
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What reference lines can be trusted and what points are being dimensioned
Based on the dimensions for the fold lines of the part above, the part is not square in the corners. It is my understanding that the short sides are actually at an angle other than 90 to the long ...
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How would this piece be manufactured
I've started tinkering with drawing parts from the blueprints for a Spitfire Mk V. I am looking at this drawing for a support strut and I am wondering how one might actually manufacture it. In other ...
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Is a geometric straight tolerance allowed on threaded bolts?
A custom bolt-like part needs to be particularly straight. Can a geometric straightness tolerance be added on the threaded part of the bolt or can it only be added before threading? The example can be ...
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My corner is too pointy in freecad; Which dress-up will make it less dangerous?
I am a beginner at freecad and I have created a protective case to carry AA batteries in my backpack.
Unfortunately, after 3D printing I realized some of its corners are alarmingly pointy. I know I ...
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How to place a chamfer on the end of an angle cut pipe
Background
The part above is from 1944 V2 plans which I am using as real world practice examples to teach myself 3D modeling using Inventor LT 2021. Therefore there is no original designer/engineer ...
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What is causing the elliptical shape around the marked hole?
Background
So I am looking at this piece titled "Ring" and I cant figure out what I am missing in the drawing that cause the elliptical shape at the two hole entrances on the right side of ...
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Thread indicator and modelling
In my on going series of teaching myself to model machine parts in Inventor, I keep stumbling across the following scenario for both external and internal threads. My reference drawing are from the ...
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What is the unidentified shape in the drawing
Woot! HTTP://www.DigiPeer.de is back up and running so I am back to practicing part drawing in Inventor LT 2021. I am looking at the following drawing titled "Pin" (according to some ...
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Replicate loft-based object to value-driven object
I've made the following oddity in Solidworks:
All the dimensions are known except for the top part. This is probably because this was done using the Lofted Boss/Base feature. The Loft profile goes (...
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how do you define tolerances for moving parts so that they work properly?
I have a mechanism in CAD that I want to either 3D print or CNC mill. When I went to the school's shop the tech asked me what the tolerances of my parts where and I had no idea. How do I go about ...
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Help with engineering graphics
Please redirect me if this is the wrong place to post this, however I've been having issues with something for engineering graphics classes and need some help
I'm supposed to draw two intersecting ...
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What GD&T methodology should I use to specify alignment of two holes perpendicular to a shaft?
A round shaft 120mm long has two holes; one 10 mm from the end, the second 80 mm from the end. Each hole is perpendicular to the shaft's length. And here's the problem: the center line of both holes ...
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