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Second round of the Novel Cryogenic Recuperator Design

Marcelo Valderrey
in Theory
13 8 Expert
We took as a reference the set of solutions achieved in the NASA CHALLENGE: Novel Recuperator Design for Cryogenic Fluid Management System, and proceeded to enhance the solutions we had proposed. In the M25 Chair - Synthesis of Mechanisms and Machines, we recognize this task as: Divergent-Convergent Creative Postprocessing.
unr smm cryogenic recuperator nasa

📘 Overview of ASME Y14 Series Drawing Standards

Aygün Karaköse
in Theory
11 0 Expert
The ASME Y14 series provides a unified set of standards for technical drawings used in engineering and manufacturing. These standards ensure consistency, clarity, and accuracy from design to production. Below is a summary of the most essential ASME Y14 standards every engineer and CAD designer should know:
technical drawing standards gdt geometric dimensioning and tolerancing asme y145

Understanding MMC and LMC in ASME Y14.5: A Detailed Guide

Aygün Karaköse
in Theory
5 0 Expert
In geometric dimensioning and tolerancing (GD&T), MMC (Maximum Material Condition) and LMC (Least Material Condition) are fundamental concepts that help ensure proper part fit and function during manufacturing and assembly. These concepts link the physical size of a feature with its allowable geometric tolerance, enabling more flexible yet controlled manufacturing.
geometric dimensioning and tolerancing technical drawing standards engineering design gdt asme y145

Iris Mechanism Generator (Variant 5)

Carlos Bravo
in Modeling
4 0 Intermediate
This model is part of a series of Iris Mechanisms I began designing during the pandemic, and it now receives an update after several years. The original model uploaded a few years ago is available here: 🔗 https://grabcad.com/library/iris-generator-model-3-1 Unfortunately, due to GrabCAD’s community guidelines, it has been flagged as “tainted due to a violation of community guidelines” and is no longer publicly visible unless accessed via direct link. 🛠️ About this Variant In this version, the actuation is achieved by rotating the driving plate. This plate interacts with slots (guides) on each leaf, which in turn execute the opening or closing of the iris. The mechanism has been successfully tested with 4 to 7 leaves, though I do not recommend using only 4, as the slot approaches too close to the edge of the plate. Suggested maximum opening angles (r_max) are: 4 leaves → up to 45° 5–6 leaves → around 40° to 35° 7 leaves → up to 30° Please review the model carefully and test parameters cautiously before applying them in a final design. ⚙️ Notes Open the full assembly file, as part dimensions and parameters are linked directly to it via parametric references. Feel free to use or modify this model as you see fit. (And fingers crossed GrabCAD doesn’t report it again 😅)
SOLIDWORKS mechanism parametric equations

SPOILER || ASTHETIC || 3D & SURFACE PART MODELING || NX SIEMENS

VR DESIGNER
in Modeling
3 0 Intermediate
Welcome to our latest CAD tutorial! In this video, we'll walk you through the complete process of modeling a car spoiler using Siemens NX — one of the industry-leading CAD/CAM/CAE tools. From creating the initial sketches to finalizing the aerodynamic surfaces, you'll learn the professional techniques used in automotive design. Whether you're a beginner or looking to sharpen your skills, this tutorial will give you clear insights into using NX Surface Modeling, Extrude, Sweep, Loft, and Edge Blend features to create a realistic and functional spoiler. 🎯 What You'll Learn: - Setting up reference planes and curves - Sketching aerodynamic profiles -- Creating solid bodies using sweeps and lofts - Surface modeling techniques for smooth flow - Finishing touches: blends, fillets, and aesthetics - Best practices for automotive part design ⚙️ Software Used: Siemens NX - A powerful and versatile CAD/CAM/CAE software for 3D modeling and engineering design.
NX Unigraphics automobile engineering mechanical engineering automotive part spoiler tutorial surfacing tutorial nx tutorial nx siemens cad tutorial

Iris Mechanism Generator (Variant 1)

Carlos Bravo
in Modeling
3 1 Intermediate
This is another variant from my Iris Mechanism Series, which I originally started designing back during the pandemic—and now, after several years, it receives a much-needed update. The original model I uploaded a few years ago was: 👉 https://grabcad.com/library/iris-generator-model-1-1 However, it was unfortunately marked as "tainted due to a violation of community guidelines" by GrabCAD. This variant uses flexible overlapping blades, inspired in part by this post: 🔗 https://www.instructables.com/Mechanical-Iris-Card-Improved/ In this design: - The number of blades is calculated automatically based on the thickness of the base plate. - There are a few geometric constraints: the inner radius must be smaller than the outer radius, and the maximum supported configuration is when the outer radius is exactly twice the inner radius. The blade shape provided is just a draft, so feel free to customize it to your needs. Use the sketch as a starting point, and modify it to suit your aesthetic or functional goals. ⚠ Note: Be sure to open the full assembly, as all blade dimensions and positions are driven by equations and references from the assembly itself. Feel free to use or adapt this model however you like! (And hopefully, GrabCAD won’t flag this one again 😅)
SOLIDWORKS mechanism equation parametric

TT Design Mechanical Designer

Tolga Türk
in Modeling
3 0 Intermediate
I am a Mechanical Drawing and Construction student at Adnan Menderes University. I have a wide variety of parts, machines and mold designs.
Autodesk Inventor machine design modelling machine

3D Spiner Design

soroosh mohammadi
in Modeling
3 0 Beginner
In this comprehensive tutorial, you will learn step-by-step how to design an engaging and functional 3D spinner in SOLIDWORKS. This guide is perfect for beginners and covers all stages, including modeling individual components, assembly, and key tips for preparing your file for 3D printing. By following this tutorial, you can design your own personalized spinner and enhance your SOLIDWORKS modeling skills. This project is an excellent way to get acquainted with both basic and advanced SOLIDWORKS tools, helping you bring your ideas to life." Tags (up to 8, separate with commas): fidget spinner, 3D printing, CAD, design, tutorial, SOLIDWORKS, modeling, assembly, toy, stress relief, product design https://youtu.be/VkPi63mExfY?si=NbpxD-Vt5JfVRR-J
SOLIDWORKS solidworks tutorial design cad 3d printing fidget spinner

Iris Mechanism Generator (Variant 2)

Carlos Bravo
in Modeling
3 0 Intermediate
This model is part of a series of Iris Mechanisms I began designing during the pandemic, and it now receives an update after several years. The original model uploaded a few years ago is available here: 🔗 https://grabcad.com/library/iris-generator-model-2-1 Unfortunately, due to GrabCAD’s community policies, it has been flagged as “tainted due to a violation of community guidelines” and is no longer publicly visible unless accessed directly. 🛠️ About this Variant This version features flexible leaves that overlap each other and are inspired by this YouTube post: 🔗 https://www.youtube.com/watch?v=tkaN07fCG3w Unlike other iris designs with rigid pivots or sliding slots, this variant proposes a softer, layered motion between blades. The number of leaves is calculated automatically depending on the dimensions of the mechanism, particularly the inner and outer radius. This model includes three different configurations, each with a distinct leaf width (r_ext_blade). The shape of each leaf is defined by a sketch that can be easily modified to suit your application. Each leaf requires two pivot points: - One at the base, to enable revolute rotation - Another at the tip, to connect with a sliding mechanism (a slotted guide or equivalent linkage) 🔁 Important: Due to how SolidWorks handles the blade instances in the assembly, they don’t appear in their final stacked order. Make sure to assemble them physically following the correct sequence for proper motion. ⚙️ Notes Be sure to open the assembly file, as the parts are dimensionally linked to the assembly (parametric relationships are defined there). Feel free to use or modify this model however you'd like. (Let’s hope GrabCAD doesn’t flag this one again 😅)
SOLIDWORKS equiation parametric mechanism

WHEEL RIM || WHEEL PART || 3D CAD MODEL || PART MODELING || NX SIEMENS

VR DESIGNER
in Modeling
3 0 Intermediate
Welcome to VR DESIGNER! In this detailed tutorial, we will walk you through the complete process of modeling a stylish alloy wheel rim using NX Siemens CAD software. Whether you are a beginner or an advanced user, this video will help you learn key surface and solid modeling techniques used in automotive component design. 🔧 In This Video: - Sketching the Rim Base Profile - Revolve and Extrude Features - Cutouts for Lightweight Design - Circular Patterns for Spokes - Fillet & Chamfer for Finishing 🌟 Designed to give you a hands-on experience in 3D modeling, this tutorial is perfect for mechanical engineers, automotive designers, and CAD enthusiasts. ⚙️ Software Used: Siemens NX - A powerful and versatile CAD/CAM/CAE software for 3D modeling and engineering design.
NX Unigraphics rim tutorial part modeling 3d modeling nx siemens tutorial cad tutorial wheel rim tutorial wheel

Iris Mechanism Generator (Variant 6)

Carlos Bravo
in Modeling
3 1 Intermediate
This model is part of a series of Iris Mechanisms I began designing during the pandemic, and it now receives an update after several years. The original model uploaded a few years ago is available here: 🔗 https://grabcad.com/library/iris-generator-model-5-1 Unfortunately, due to GrabCAD’s community policies, it has been flagged as “tainted due to a violation of community guidelines” and is no longer publicly visible unless accessed directly. 🛠️ About this Variant This version features somewhat triangular leaves that slide against each other. The mechanism operates through two plates: A base plate with straight linear guides, which define the opening/closing position of each leaf A driving plate with curved slots, which actuate the iris motion through controlled displacement This model is a schematic representation, so any manufacturing considerations—such as tolerances between pins and slots—are left to the discretion of the designer using this as a starting point. ⚙️ Notes Be sure to open the assembly file, as the parts are dimensionally linked to the assembly (parametric relationships are defined there). Feel free to use or modify this model however you'd like. (Let’s hope GrabCAD doesn’t flag this one again 😅)
SOLIDWORKS parametric mechanism equations

How to Calculate Element Percentage in Weld Bead Using Dilution Formula

Aygün Karaköse
in Theory
3 0 Expert
This tutorial explains how to calculate the percentage of a specific alloying element (e.g. C, Mn, Cr, Ni) in a weld bead based on contributions from base metal, filler metal, and other additives. This calculation is critical in welding metallurgy to predict the final chemical composition of the weld and ensure mechanical properties meet standards.
weldingengineer weld

Automate AutoCAD using ChatGPT | Validate LISP Program in AutoCAD | What is AutoLISP | CADable

Ibrahim Omer
in Drafting
2 1 Expert
Hi friends welcome back to CADable. This is Engr. Ibrahim Omer and in this tutorial we will learn how to automate AutoCAD using ChatGPT. We will learn the following: What is AutoLISP? How to use ChatGPT to write LISP code Making a parametric tube section LISP program Validate LISP Program in AutoCAD That's it for today's tutorial! I really hope you find it useful. If you have any questions or need help, please drop a comment below. I love hearing from you. Chapters of the tutorial: Introduction 0:00 What is AutoLISP 0:14 Making a LISP program in ChatGPT 0:53 Saving LISP program in Notepad from ChatGPT 1:44 Launch AutoCAD + AutoCAD basic settings 2:32 Upload LISP program in AutoCAD 3:03 Moving UCS icon to origin 3:34 Tube section 1st program + AutoCAD measure tool 3:45 Tube section 2nd program + AutoCAD measure tool 4:30 Tube section 3rd program + AutoCAD measure tool 5:08 Conclusion 6:04 Don't forget to subscribe for more fun and informative videos. I also make tutorials, Shorts, and even quizzes and polls to help refresh your memory, learn new things, or just revisit the basics. #AutomateAutoCADusingChatGPT #ValidateLISPPrograminAutoCAD #WhatisAutoLISP #CADable #cadabletutorials Watch Tutorial: https://youtu.be/zP6YMHM9wr8
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ASME Y14.5 2018 – Key Terms and Definitions Explained

Aygün Karaköse
in Theory
2 0 Expert
The ASME Y14.5-2018 standard is one of the most comprehensive and widely used guides for Geometric Dimensioning and Tolerancing (GD&T) in engineering drawings. It provides standardized definitions and symbols to ensure clarity and consistency in design, manufacturing, and inspection processes. This article summarizes and explains the key terms and concepts from the standard to help engineers, designers, and technical professionals better understand and apply GD&T principles effectively.
gdt geometric dimensioning and tolerancing asme y145

Solidworks: practice exercises (41)

Huy Pham
in Modeling
2 0 Beginner
I hope this video useful for everyone want to become professional design of engineer I have a channel in youtube about CAD 3D, I hope this useful for you: https://www.youtube.com/channel/UCw_Zp8rsvtI01SnhkM_4FAw
SOLIDWORKS exercise tutorial solidworks
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The Computer-Aided Design ("CAD") files and all associated content posted to this website are created, uploaded, managed and owned by third-party users. Each CAD and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or real-world item, product, or good it may purport to portray.