select
navigate
switch tabs
Esc close

Do low-tolerance features need to be dimensioned on drawings?

0
T
2

Hello, I’m working on a project that needs a lot of precision, and I’ve always thought parts should be fully reproducible from the technical drawings alone, without needing a 3D CAD file. Lately, though, I’ve heard that even low-tolerance features need to be dimensioned on the drawings. Is it normal to include those dimensions, and how does that affect the manufacturing process? Just trying to make sure my drawings give all the info needed for accurate production. Thanks, Tamir

Solved by Mattias

Hi! Yeah, over the last few years, there’s definitely been a shift from relying mostly on printed drawings to making CAD the go-to source. With how advanced CAD and MBD are now, a lot of the key info, like dimensions and tolerances, is embedded right in the model itself. It’s making traditional drawings more of a backup or reference. We’re seeing more drawings auto-generated from the 3D models, but really, the digital file holds everything you need these days.

    • T

      Hello, I’m working on a project that needs a lot of precision, and I’ve always thought parts should be fully reproducible from the technical drawings alone, without needing a 3D CAD file. Lately, though, I’ve heard that even low-tolerance features need to be dimensioned on the drawings. Is it normal to include those dimensions, and how does that affect the manufacturing process? Just trying to make sure my drawings give all the info needed for accurate production. Thanks, Tamir

      0
    • M

      Hi! Yeah, over the last few years, there’s definitely been a shift from relying mostly on printed drawings to making CAD the go-to source. With how advanced CAD and MBD are now, a lot of the key info, like dimensions and tolerances, is embedded right in the model itself. It’s making traditional drawings more of a backup or reference. We’re seeing more drawings auto-generated from the 3D models, but really, the digital file holds everything you need these days.

      0
      Reply
    • C

      Absolutely! The whole CAD-first approach is growing fast, thanks to model-based definition and product manufacturing information. Embedding all the details directly into the CAD model cuts down on a lot of the confusion that can happen with traditional 2D drawings. It’s a game changer for more complex parts, where the 3D model gives a much clearer picture of what needs to be done. We’re not at the point of getting rid of 2D drawings just yet, but it’s heading that way.

      0
      Reply
Do low-tolerance features need to be dimensioned on drawings?
Your information:




Suggested Topics

Topic
Replies
Views
Activity
Minimum embossed text size for TPU molding
Hey there, I'm designing a flexible watch strap that will be injection molded in TPU (Shore 85A). I want to include some small embossed text (branding and serial number) directly on the strap, but... read more
A
T
n
4
575
Dec 11
Printed bracket cracking – how to reinforce?
Hi,  I'm prototyping a small bracket for holding a plastic cover in place—roughly 60 × 30 × 10 mm, with two hooks and two screw holes (M3) on the top side. I printed it in PLA with 20% infill... read more
G
R
1
158
Apr 23
FEA of a welded tow hitch
Hi! Need help on a welded tow hitch for an off-road vehicle using S355 steel tubing and 8 mm plates. It needs to handle a 3,500 kg towing load with off-axis forces. In ANSYS,... read more
L
R
1
200
Apr 10
Best gear setup for a compact robotic arm gearbox
Hi,Working on a compact gearbox for a robotic arm and need advice on the best gear setup. The arm sees intermittent loads, max torque at the output is 15 Nm, and I need about... read more
R
M
2
591
Apr 16
How to call out helicoils or inserts on a drawing?
Hey,My aluminum part needs reinforced threads, so I’m looking at using Helicoils or possibly another type of insert if the machinist has a better suggestion (I’ll have my part produced by an external manufacturer).... read more
M
1
234
Mar 31