Questions tagged [technical-drawing]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
15 views

Autocad start drawing away from the Z=0 (non-coplanar)

I'm having an issue when I draw some elements. They are been drawn away from the Z=0, is causing to be non-coplanar with other elements. So, I cannot make fillets or can find crossing points. I don't ...
1
vote
1answer
54 views

Why is the left-side view called like that?

The top view looks at the top of the objet from the top of the object, the front view looks at the front of the objet from the front of the object. All seems logical. So why does the left-side view ...
0
votes
0answers
18 views

How do split drawings from this without losing their dimension Autocad

I have a dxf file converted to dwg (unit: millimeters). There are 6 different drawings in the same file, How do I split those to different sheet. I wanted to take their consumption, as they are going ...
0
votes
1answer
33 views

Is is possible to form a 3D object from the front, side, top views with a triangle, a square and a circle respectively?

A friend of mine asked me this question, but I don't know if it is possible or not. If it is possible, please show me how to construct it. If it is not possible, please prove it. Thanks.
1
vote
4answers
133 views

Strange CAD excercises

a long time back at school, I had a difficult excercise which was named X, Y and Z bodies. They were drawings where both the front view and the top view were fully given. We had to find the view from ...
0
votes
0answers
27 views

Projection of a given view to produce another views

First as a beginner in Technical drawing, I'm required to project two other views from the given views. In the first image the original object was not given and I'm required to produce the third view. ...
5
votes
2answers
132 views

What does “do not scale drawing” in a drawing sheet mean?

I opened a new sheet in Solidworks drawing, in the title block, there was a field written "Do not scale drawing". What does that mean? There is a scale already being chosen over there. It was just a ...
2
votes
1answer
67 views

P&ID Symbol Identification Question

Does anyone know what these three symbols are? I am working to identify them but they do not seem to appear in the site: https://www.edrawsoft.com/pid-legend.php Does anyone know a better reference ...
0
votes
1answer
98 views

Engineering Drawing-Projection of intersection curve of two standing cones

I have this projection of two intersecting cones, and I am asked to draw the intersection curve of the two cones on the projection. What is the right way to do it?
0
votes
3answers
115 views

Engineering Drawing - dimensioning

Do the dimensionings of these 3 orthographic views look correct? Not the values, but the placements of the projection lines and arrows. Do they all have to be on one side or no? (I still have to add ...
0
votes
1answer
73 views

Drawing in orthograhphic

I need to draw this in orthograhpic views. I'm a bit confused about the weight of lines I should use to draw. Like ,for the pat (I pointed the arrow at) you can see it's sticking out a bit, would I ...
0
votes
2answers
39 views

Technical Drawing: Labelling a component that's not part of my design but integral to my system

I am creating a technical drawing of a system I created. Let's call my system, system X. System X is a mounting mechanism for already invented system Y. System Y is customizable, however, system X is ...
0
votes
1answer
38 views

Help interpreting dimensions from this drawing

Why there are different dimensions for the same measurements on this drawing? For example 0.127mils and 0.097 mils pin to pin. Or highlighted 405 and 385 mils. I can't find anything on the datasheet ...
2
votes
1answer
46 views

How to calculate the dimensions of an ellipse in a multi-view projection

The following image is an example that will help to demonstrate what i am saying and this below is a blender image version of an object with a slant surface at the top. to draw the multi view ...
1
vote
1answer
57 views

What does P0.35 stand for in a Tech drawing for a Bolt

Got a Tech Drawing today with measurements and all that. I understand everything except for one part where they've specified a bolt with M4 P=0.35. The M part I get but what does the P specify?
0
votes
0answers
115 views

What standards apply when specifying coating/painting in a mechanical part drawing?

I have produced a part drawing which calls up a machined mark on a flat surface, and the supplier has manufactured the part with this surface painted. I haven't added a note to the drawing that says ...
1
vote
2answers
49 views

How to communicate to keep original dimensions of a part in a technical drawing?

Example: let's say that I have a rectangular part that I would like machined. I'd like to cut it to change the length, but the width and thickness are fine as is. The width and thickness are not nice ...
0
votes
1answer
92 views

What do the short parallel lines mean in a symmetrical value?

I was wondering if the short parallel lines at the ends mean anything?
4
votes
1answer
72 views

Is the diameter before knurling assumed to be the same as diameter after knurling?

If the diameter before knurling is 80. Is the knurled diameter also 80?
2
votes
1answer
61 views

How are NPT hole features defined?

I'll be the first to admit that I have always been somewhat confused by best-practice dimensioning standards surrounding pipe threads. While there is a decent amount of literature available online, (...
0
votes
2answers
60 views

Technical Drawing Content

When producing a set of engineering drawings for products we tend to specify the materials used for the part in the notes. For example if it's a moulded part we'd specify PA6 GF20 and then the ...
0
votes
2answers
43 views

Find correct dimensions from mechanical drawing

I'm designing an electrical component into a CAD from the manufacturer drawing. The version I'm interested to is the code 106166-1 (6 positions, last entry in the table). I'm not sure to understand ...
0
votes
1answer
102 views

Can you help interpret hand-drawn technical drawing?

I can't seem to figure out the proper left view for the following image, and the full and half sectional cutout for the left and front projection.
1
vote
0answers
26 views

Suggestions needed: Automatically recognising key elements of object in 2D image for technical drawing reconstruction [closed]

Disclaimer: I am aware that this is a vague question, I am merely looking for suggestions on where to start. If you find that this question is better asked elsewhere, suggestions are more than ...
0
votes
1answer
533 views

Understanding hole specifications

I am trying to interpret the hole specifications in the attached diagram. What does each component mean? I understand what 'Thru All' means, does 4x mean 4 holes? What is the diameter of the hole? is ...
1
vote
0answers
53 views

What does C20019 IN PAIRS AT 900 MAX CTS WITH 2 ROWS OF BRIDGING AT 1/3 POINTS mean in a technical drawing?

Specifically, does in pairs mean that there are 2 C20019 members per indicated line on a technical drawing?
0
votes
1answer
437 views

2PL / 3PL annotation on arc in technical drawing

I found a technical drawing of a popular guitar shape online and I'm having trouble to understand a certain annotation on some arcs in the drawing. It basically says stuff like "0.43R 2PL" or "3PL" (...
3
votes
0answers
41 views

Go-to resource for open hardware engineering resources? [closed]

If you would search for open source software projects, you'd probably run into GitHub and BitBucket. Is there a similar site/community around open hardware to share and version CAD files, curcuits, ...
3
votes
3answers
837 views

Rule of Tens/Ten to 1 Rule in Measurement and Inspection

I'm trying to clarify my understanding about the requirements [read: best practices] for measurement resolution and measurement confidence. The "Rule of 10s" is a commonly tossed around guideline ...
1
vote
1answer
44 views

Document Feathering Tolerance on Drawing

I am recreating an engineering drawing package from old quotes for a large assembly. In the quote they say "All length edges not to exceed 1/32" deep feathering". For some context this is for a bunch ...
0
votes
1answer
44 views

AutoCAD 2019: How do I Find the Perfect Angles to Match Line Endpoints

I'm trying to match up two lines on a drawing I am doing, without changing the length of either line. There is a perfect set of angles to do so- I just don't know what it each. Is there a built in ...
1
vote
0answers
91 views

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(\...
1
vote
1answer
53 views

How to number section and detail view for a same drawing

For a given 2D print, is it recommended to number section views and details views with the same alphabetical list, i.e. Section views A,B and C followed by detail views D, E and F, or go with ...
0
votes
2answers
4k views

Please Help me Read this Engineering Drawing

I am trying to CAD up a drawing for a plate for this motor to mount to. I figured it would be easy since they provided an mechanical drawing, but I have never seen one like this before. Can you please ...
2
votes
1answer
221 views

Solidworks - Projected Curve is incomplete

-- This issue might be due to a bug in SolidWorks 2014 SP2 -- I'm trying to route a water hose from one location to another without passing through a keepout area (the red box shown). I am simply ...
0
votes
1answer
100 views

In the image below,only 4 quadrants are mentioned but my intuition says there should be 8, please clarify me?

I am learning engineering drawing and confused on this.
0
votes
2answers
322 views

Understanding some drawing notations

Question in short The following drawing is a ball-screw with both ends mechanized and a ball-nut on it. What is the meaning of the indicated notations? Context What is clear to me are: ...
2
votes
0answers
273 views

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 ...
4
votes
2answers
3k views

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 ...
1
vote
1answer
2k views

What software is used for drawing dynamic & mechanical diagrams? [closed]

I need to sketch some diagrams involving basic symbols like springs and dampers, specifying angles, perpendicularity etc... something like the images below: Obviously my first option was word, then ...
-1
votes
3answers
20k views

Top View,Front View,Left view and right view help [closed]

I have to draw the front,top,left and right views of a given solid objects without scaling them i.e freehand. I am much beginner in this drawings. So I am getting no idea of how the given solid object ...
1
vote
0answers
44 views

Servo drive gear placement relative to the body

Is there a universal rule for servo drive gear placement? I'm planning to use this servo for a robotics project, but I need to know exactly where the drive gear is located relative to the body. The ...
2
votes
0answers
134 views

How to display an adiabatic boundary condition in a diagram?

I want to create a diagram. It will consist of a plate with a uniform heat load, a heat sink, and an adiabatic boundary condition. I thought of displaying the sink as a rigid attachment (as in ...