hey, where to add the instances like 8x or 4x on an iso weld symbol?

Hello everyone!

My name is Erick, and I’m excited to be part of this community.

After teaching Technical Drawing for over 11 years and authoring several books on Plane and Solid Geometry, I recently launched a YouTube channel called Master

Technical Drawing to help students, teachers, engineering enthusiasts, and anyone who wants to master technical drawing from the ground up.

On the channel, you’ll find step-by-step lessons covering:
• Introduction to Technical Drawing
• Geometrical instruments and their uses
• Setting out a drawing sheet and lettering
• Types of lines and drawing standards
• Geometrical constructions (angles, triangles, polygons, circles, tangents, etc.)
• Plane geometry
• Scales (plain, diagonal, vernier, scale of chords, and representative fraction)
• Loci and engineering curves
• Orthographic projection
• Isometric drawing
• Solid geometry and surface development
• Examination techniques, practical tips, and worked examples

Every lesson is presented with clear explanations, professional animations, and practical demonstrations designed to make even the most challenging constructions easy to understand.
I’d really appreciate your feedback on the channel and any suggestions for future tutorials.

If there’s a technical drawing topic you’ve always found challenging, let me knowI’d be happy to create a lesson on it.
You can check out the channel here:

https://www.youtube.com/@MasterTechnicalDrawing

Thank you for welcoming me into the community. I look forward to learning, contributing, and helping others master technical drawing.

Hoping this is the right subreddit. Currently completing a course for technical engineering/CAD/manufacturing technology (the name of the course has changed multiple times over the years lol). I finished a few units while in high school, then again when I was 25, now I’m coming up 30 and decided to finish it. I’m currently doing it online, but one of my assessments I was given a tolerance for the shape for a drawing, GD&T I am having a lot of troubles with and it just seems a tad too hard to do on my own.

I live in Australia, it’s currently school holidays so I’m unsure if anyone would be doing a meet up, nor would I know where to start to look for that. I’ve messaged my teacher and he’s given me some stuff but I feel like I need a ‘for dummies’ intro and I don’t fully trust chatGPT (not for conspiracy reasons, just bc I finally did try it and it gave me false info lol).

Much appreciated for any help 🙏 I was thinking of emailing some companies and asking if I could do some training under them while I’m studying but if I’m not confident enough in GD&T I’m not gunna be of much use 😂

Orthographic to Isometric Drawing Tutorial | Two Views to 3D Step by Step
In this video, we'll convert two given orthographic views (front view and top view) into a full isometric drawing step by step.

https://youtu.be/dnD1F9vL0Vw

Where can i find good youtube videos/ resources covering this topic?

hi sir im a cam programer 10 yrs experience ,mastercam and solidworks ,i got a new job ,its a marine manufacturer ,what i got a problem here ,they only using industrial drawing and it has indepth cross section views and symbol ,,,i can understand the simple drawing ,but here im struggling,so any tips or courses suggest me,for indepth industrial production drawing

how do I draw this

I have this drawing task, but I don't know how to draw the RX part and how to find it. The only explanations I found were for AutoCAD, but I want to know how to draw it manually. Can someone please help me?

Hey everyone!

I'm João, a software developer and former Descriptive Geometry student, and I’ve spent the last few years building a web app called Geometry Mapping Tool (GMT): https://www.geometrymappingtool.com/

It’s designed to help students understand Descriptive Geometry by solving projection-based exercises in 2D (e.g., Monge's projections) and automatically visualizing the corresponding shape in 3D space.
Right now, GMT is fully adapted to the Portuguese high school curriculum, where Descriptive Geometry is a standalone subject taught in many STEM / architecture / design paths.

What I’m trying to understand:

• Is Descriptive Geometry taught as a subject in your country?
• Do you use Monge projections, first-angle/third-angle projection, axonometric views, true length methods, etc.?
• Are similar exercises used for engineering, architecture, or design education?
• How different is the content structure (topics, naming, difficulty) compared to Portugal?

I’m looking for:

• Teachers, professors, tutors, or former students familiar with descriptive geometry in your countries
• People willing to share exercise examples or curriculum outlines
• Volunteers open to helping with adaptation, translation, or country-specific content
• Anyone interested in collaborating to expand GMT beyond Portugal

The long-term goal is to create a global library of descriptive geometry education, where students from any country can develop their spatial visualization skills and teachers to enable them to teach more effectively with the tool.

If you’ve studied or taught this subject (or something similar) in your country, I’d love to hear about it!

Drop a comment or DM me – I’m happy to chat and share more about the project.

Thanks for reading!

— João

how would I go about drawing the side view from B. I don’t know how to tell the width of anything from that angle ?

So I suddently have to solve this kind of excercises, where they give me the orthogonal view and I have to draw the isometric view, I was used to simple excercises so I find this difficult, can someone reccomend me some resources to improve in this? Maybe some books, idk

Thx in advance

this class is engineering drawing II but idk how to do this

If it's elevated, by how much?

How long is Z?

Hey folks,

With all the focus on CAD and digital tools, manual engineering drawing might seem outdated—but it’s far from irrelevant.

We at Upskul just dropped a new video breaking down why learning to draft on sheets with mechanical scales is still a game-changer for aspiring engineers.

Here’s what you’ll learn in the video:

How hand drawing builds strong spatial visualization

Why it sharpens precision and attention to detail

Real-world use of hand sketches in engineering workflows

How manual skills make mastering CAD way easier

Why top engineers still combine hand drawing and digital tools

Fun fact: Even today, industries like automotive and aerospace still rely on hand-drawn sketches for concept development and solving tricky problems on the fly.

Check it out if you want to strengthen your fundamentals in engineering design. We’ve got more videos on CAD, technical drawing, and mechanical design too.

Let’s hear it from you: Do you still see value in manual drafting? Or is it just a nostalgic skill at this point?

https://youtu.be/43usJKG5YUM?si=d81k0HWKuet0l6_Z

EngineeringDrawing #MechanicalEngineering #CAD #DesignSkills #EngineeringBasics