Questions tagged [drawings]
66 questions
4
votes
2 answers
What does an E in a circle after a diameter mean?
I’m pretty sure it’s something to do with the fitting, possibly specifying to use the minimum circumscribed or maximum inscribed circle to tolerance the diameter but I can’t remember.
The tolerance would be in the form
⌀123 ± 0.01 Ⓔ
In case the…
Notts90
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3
votes
1 answer
How to model Motor Windings in Solidworks?
I want to model a DC motor in order to eventually do some simulations (temperature/cooling related) and I'm wondering what is the best way to model the motor windings?
I've seen a few video's on how others have done it but these only model 1 layer…
Maarten -Monica for president
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3
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0 answers
GD&T for Multiple Surfaces as Single Feature
I'm looking to get some collective agreement on a question that I have come across a few times now. When referring to features that are technically independent, what is the general consensus on dimensioning them? Take, for example, the part…
Argonax
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3
votes
1 answer
How to draw isometric view of this shape?
I'm having trouble drawing an isometric view of this shape:
I've only just started an engineering course and so far it's involved a lot of drawing which I usually can do but I can't seem to figure out how to 'place' this object to make an isometric…
jpmontoya
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2
votes
2 answers
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 I could got to for clarification.
I know how I…
Forward Ed
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2
votes
0 answers
Transferring the project from "Altium Design" to "SolidWorks" while maintaining silk-screen printing, sizes and everything else
I want to transfer the PCB project to solidwork from altium design, I read forums on how to do it better, and so:
Save to STEP. The option is good and working, but I did not like the option, since silk-screen printing and tracks on the PCB are not…
Антон
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2
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What is this 'timber insert' on the construction drawing of a concrete parapet wall?
A sectional elevation of a concrete roof is shown below (drawing is from the early 70s):
The roof slab is dimensioned as 6" thick with what appears to be 12" parapet wall with a 'Timber Insert'.
What is the purpose of this timber insert? Is it for…
egg
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2
votes
2 answers
Coplanarity Profile Callout Confusion
From Krulikowski (1997), the callout for several coplanar surfaces using the Profile symbol is done by using two surfaces to establish datum plane A-B and then tolerancing the remaining coplanar surfaces in reference to A-B.
Can other non-coplanar…
Bawb
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2
votes
0 answers
What is the minor diameter of a thread in terms of its nominal diameter and pitch?
I'm trying to find the formula for calculating the tensile stress area of a bolt. According to page 1528 of The Machinery's Handbook (29th Ed.), that formula is given as
$$
A_S=\frac{\pi}{4}\left(\frac{d_m+d_p}{2}\right)^2
$$
Where the pitch…
tlewis3348
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2
votes
3 answers
Technical drawing for a part with complex (non-line, non-arc) geometry
I've been making technical drawings for various parts I've designed. Since these parts were meant to be 3D printed, this is mainly just to have them in my portfolio so I have something to show/talk about at the upcoming career fair (I'm an…
Jessica Alan
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1
vote
2 answers
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 the drawing and the half ellipse in in the section…
Forward Ed
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1
vote
0 answers
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 google translate).
In the drawing there is a flanged shape…
Forward Ed
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1
vote
0 answers
What software is used to create the graphics for stuctural analysis textbooks?
I want to create some 2D and 3D drawings of simple trusses and frames. and I was wondering, what is the software used to create the graphics seen in structural analysis textbooks (example: R.C Hibbeler Structural Analysis and Ferdinand P. Beer…
Abdulla Hassan
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1
vote
5 answers
Are un-dimensioned orthographic views permitted on a standard drawing?
If I remember correctly, best practice on a drawing is if you fully dimension a part in two out of three orthographic views you don’t include a third view with no dimensions. Is this a documented standard, best practice, or not true at all?
An…
cadmonkey
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1
vote
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Is there sufficient information to complete the bottom end?
BACKGROUND
Fresh of the heels of figuring out my "kinky" issues in this question I thought I was fully prepared to deal with the following drawing titled COILED PIPE 2. The drawing seemed rather straight forward and initially came across as a…
Forward Ed
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