Questions tagged [technical-drawing]

Technical drawing, drafting or drawing, is the act and discipline of composing drawings that visually communicate how something functions or is constructed.

Filter by
Sorted by
Tagged with
2 votes
2 answers
64 views

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 ...
user avatar
  • 1,081
0 votes
1 answer
50 views

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 ...
user avatar
  • 1,081
0 votes
0 answers
20 views

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 ...
user avatar
  • 1,081
1 vote
0 answers
59 views

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 ...
user avatar
  • 1,081
1 vote
0 answers
17 views

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 (...
user avatar
  • 385
0 votes
1 answer
45 views

In which file format are technical drawings saved/stored? How can the data be exchanged between other software?

I just want to know how the information contained in technical drawings is stored? Is there a kind of major representation/file format such as the boundary representation? Is all the information ...
user avatar
0 votes
0 answers
31 views

Need help with Solidworks

Would I be allowed to ask which Solidworks feature I should use to make the recessed bit (circled in red) of the thing in the diagram below? Thanks.
user avatar
1 vote
3 answers
40 views

Should I use the rounded values given on technical drawings or work at the highest reasonable resolution?

In the image, the table of dimensions only gives a resolution of 1mm; in the actual creation of such a sign, would these approximate values be used or their true values (within reason)? For example, R ...
user avatar
1 vote
1 answer
47 views

what does four 8-32 holes on a 50mm bolt circle mean in this diagram? This drawing is for an ampflow E30-400-24 dc motor

the link to the website is here:https://www.ampflow.com/motors/highPerformance/threeInch/ that drawing I think is the front of the motor, the shaft is in the center, the 4 holes around it are ...
user avatar
0 votes
0 answers
23 views

single limit tolerance for the chamfer

We have nominal value for the chamfer and upper limit dimension. What will be the lower limit in this case?
user avatar
  • 1
0 votes
0 answers
20 views

How are 2D views from a 3D CAD Model stored in STEP-File with Boundary Representation generate for engineers to define details? And why?

I am new in this topic and need some help. There are 3D CAD models (stored as STEP Files with the boundary representation) and some engineers need 2D views of these models for further processing. With ...
user avatar
0 votes
1 answer
44 views

Airfoil engineering drawing

In an engineering drawing how would you dimension the cross-section of an aircraft's airfoil? Obviously, you would have to include the chord length, leading and trailing edge radius, and wingspan. But ...
user avatar
0 votes
0 answers
9 views

Pipe Flow Expert Software x dwg Isometrics compatibility

In my office we use the pipe flow expert software for project and model pipe systems. But usually we redesign all of the isometrics made on dwg cad. Has any one any idea how to reuse the dwg drawing ...
user avatar
  • 113
0 votes
2 answers
166 views

Are these section views correct Autodesk inventor

So I used AutoDesk inventor and created this machine part for the purpose of exercise , But it is preferred to not to hatch ribs in my course so is there a way to make it look like image (5 and 6) ? ...
user avatar
1 vote
1 answer
98 views

Autodesk inventor create rib feature failed

It's been kind of painful to create a rib I'm new to inventor while I was trying to create a rib symmetric about the YZ Plane this error keeps popping up
user avatar
0 votes
1 answer
58 views

How to draw hidden rib in Autodesk Inventor

I drew the outer hollowed body and the cylinder on 2 separate parts but I can't figure out how to draw this rib so that it is passes through the centre of the cylinder, a video of a similar example ...
user avatar
0 votes
1 answer
55 views

Should a stiffener be hatched

In my course it's preferred not to hatch ribs and webs so should I consider a stiffener like them and not hatch it or is it different and why ?
user avatar
0 votes
3 answers
154 views

How to visualize isometric parallel projection?

I read the definition of Isometric Projection from this pdf that Projection plane intersects each coordinate axis in which the object is defined (principal axes) at the same distant from the origin. ...
user avatar
2 votes
1 answer
188 views

What are these hidden lines tangent to the circle?

I don't understand what the hidden lines are nor the fillets tangent to the center line of the circles if someone can help with the 3d isometric that would help a lot.
user avatar
0 votes
1 answer
54 views

Trying to draw rib tangent to a circle AutoCad 3d modeling

I'm trying to draw a rib tangent to a circle but If some one can link a video or a tutorial on how to do that I'd be really thankful here's the drawing in 2d (the rib is highlighted with the red ...
user avatar
1 vote
0 answers
52 views

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 ...
user avatar
0 votes
2 answers
186 views

How to visualize angle of projection in Oblique Parallel Projection?

We know that in Oblique Parallel Projection Point $(x,y,z)$ is projected to position $(x_p,y_p)$ on the view plane.Projector (oblique) from $(x,y,z)$ to $(x_p,y_p)$ makes an angle $\alpha$ with the ...
user avatar
4 votes
1 answer
48 views

Best Practice for Tracking Vendor Firmware Rev

My employer has had me create a model of a vendor product (using OnShape) and make a simple drawing with some overall dimensions that we can hand to customers. However, they want to include the ...
user avatar
  • 41
1 vote
0 answers
37 views

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 ...
user avatar
  • 1,081
0 votes
1 answer
80 views

Coiling and bending pipe in 3D model

BACKGROUND: I had previously dealt with 2 pipe coils with oddly bend ends. for the most part I was able to use the coil tool and was able to line up a bunch of 2D sketches to complete the odd end ...
user avatar
  • 1,081
0 votes
0 answers
47 views

Part drawing information vs Assembly drawing

With my progress through various drawings, I finally came across an assembly drawing with parts I have actually drawn up that caught my eye. The first part drawing as shown below is a simple sheet ...
user avatar
  • 1,081
0 votes
0 answers
44 views

What is the best way to handle the hole pattern in this drawing

Apparently I am on a roll of more questions than not today. In the following drawing, there is a pattern (partial?) of 2.7 mm holes. The word in German pointed at them according to google translates ...
user avatar
  • 1,081
0 votes
1 answer
109 views

Are these cut lines?

In the following drawing I am looking at the lined that come in on either side of the teeth/tabs that are spaced 9 mm apart and extend 6 mm into the material. In my head these are cut or shear lines ...
user avatar
  • 1,081
0 votes
0 answers
23 views

Proper way to model same diameter hole with different tolerances?

This drawing indicate 3 concentric holes. What I did was: Sketch the circle for the outside of the cylinder - 38.5 dia. Extrude the circle for the overall length of the cylinder - 37 mm Use the hole ...
user avatar
  • 1,081
1 vote
1 answer
42 views

Loft not quite making the cut

I am working in Inventor LT 2021 which means I do not have access to the sheet metal tool. Which would have been great as the example I am working on is sheet metal. The example drawing I am working ...
user avatar
  • 1,081
1 vote
1 answer
54 views

What does the Pg annotation mean

While I am continuing my practice with the German drawings of the V2 rocket, I have come across the PG designation a couple of times on different drawings. I originally thought it was for diameter, ...
user avatar
  • 1,081
0 votes
0 answers
45 views

Concentric Circles & Section/Breakout Confusion

This is part of my on going saga of drafting question with respect to the V2 drawings I am using for practice while learning inventor. The following drawing is titled "Partition" (...
user avatar
  • 1,081
1 vote
2 answers
88 views

V2 drawing interpretation

This is part of my on going saga of drafting question with respect to the V2 drawings I am using for practice. The following drawing is titled "Container Overview". It has left me with 3 ...
user avatar
  • 1,081
1 vote
0 answers
53 views

Interpreting drawing annotations

The other day I was looking for example drawings to follow that would be used in a real world context as opposed to basic exercise books and I stumbled across a museum archive of the V2 rocket design. ...
user avatar
  • 1,081
0 votes
0 answers
56 views

How would you level this arm on a base?

I was wondering how can I level smartly the following equipment's slighlty heavy arm. The arm is fixed on a base with 4 big socket head screws. The same arm needs to be levelled via the 4 jacketscrews ...
user avatar
  • 1
0 votes
0 answers
35 views

Inventor Filleting Issue

I am a beginner practicing with Inventor 2021 LT and I was working on the following sample drawing when I ran into an issue with fillets: At the top edge of the U-shape slot, a rounded corner can be ...
user avatar
  • 1,081
1 vote
1 answer
42 views

Interpretation of dimensions

Continuing through my practice examples I came across the following diagram and I have a question on how to interpret the depth of the part. I have the part drawn up in inventor, but when I went to ...
user avatar
  • 1,081
1 vote
2 answers
163 views

Symbol and dimension question for practice sketch [closed]

I am practicing with Inventor LT 2021 to get used to it, and learn more about how to manipulate things in it. I was practicing with the following sketch and I developed a bunch of questions about the ...
user avatar
  • 1,081
1 vote
3 answers
263 views

Why are there sometimes slash marks and sometimes arrows in dimension lines?

Sometimes, I see dimension lines drawn like this: Where there are extension lines and double-headed arrows between them. This is also how my textbook, Technical Drawing with Engineering Graphics, ...
user avatar
  • 115
1 vote
1 answer
102 views

How to interpret tolerance in technical drawing

I'm trying to interpret the following mechanical drawing: However, I struggle with the "tolerances" part. Shouldn't one dimension (like $44$ diameter) have one number attached to it, to ...
user avatar
  • 115
1 vote
4 answers
107 views

How to place a sketch plane at a specific geometric location

My background drafting is structural bridge drawings. I had Inventor LT installed the other day and I have been playing with it to refamiliarize myself with it and get used to the differences between ...
user avatar
  • 1,081
0 votes
2 answers
40 views

What are the exact dimensions of this screw?

When working on a technical drawing project, I couldn't find the exact dimensions of the following screw In particular, I don't understand the $0.5:1$ to $\emptyset 15$ indication. Is this screw in ...
user avatar
  • 115
0 votes
3 answers
121 views

I need help with dimensions on technical drawing

Here is a 3D model of a housing: How can I specify the position of the marked features ?
user avatar
  • 344
0 votes
1 answer
104 views

Projecting side surface from a 3D object made by lofting in autocad into 2D

i have made a 3d object by lofting two circles in autocad: Now I want to project the newly made side surface (without the two original circles) into 2D so I can make it with sheet metal. By ...
user avatar
  • 101
0 votes
1 answer
82 views

Getting a 3d object from connecting two parallel surfaces and then viewing the new side surface

I have two slightly different surfaces (circle with a part chopped off and a similar circle but with half of an ellipse in the chopped off part) and I want to connect them into a 3d object and then ...
user avatar
  • 101
1 vote
2 answers
131 views

How to Construct a Primary Auxiliary View given that an oblique surface with 6 sides

I need to construct the auxiliary views with the given front and right side orthographic views. The view is in third angle projection. I observed that there is an oblique surface so that perhaps I ...
user avatar
  • 13
1 vote
3 answers
262 views

Finding the isometric view of an object from the front and right side view

I need to draw the isometric view and top section view of the object given only the front and right side view. I understand on how other edges of these views correlate with each other. I just do not ...
user avatar
  • 27
0 votes
2 answers
62 views

Does anyone know the name of this mechanical part?

Does anyone know the name of this mechanical part?
user avatar
6 votes
3 answers
400 views

Meaning of quarter hole color fill in drawing

In this drawing 4 of the holes have the top left quarter filled in black. What is the meaning of that? It it some special type of hole? The drawing is from a Waveguide and in the specs it says ...
user avatar
1 vote
0 answers
48 views

How to align the assembly in Siemens NX?

I rotated the assembly somehow and when I try to make a technical drawing of the assembly this happens: As you can see, the cylinder ( assembly ) makes an angle. How can I fix it ?
user avatar
  • 344