Skip to content

4 Point Bend Specimen & Test Fixture

IMG_1181.JPG 4 Point Bend Specimen & Test Fixture
four_point_bend_specimen.png 4 Point Bend Specimen & Test Fixture
roller_mount.png 4 Point Bend Specimen & Test Fixture
four_point_bend_specimen.stl 4 Point Bend Specimen & Test Fixture
roller_mount.stl 4 Point Bend Specimen & Test Fixture
Advertising
Share
Add to
Make
Advertising
?
Creation quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.
  • 1k views
  • 8 downloads
License
3D design format
STL Folder details Close
  • four_point_bend_specimen.stl
  • roller_mount.stl

Learn more about the formats
Publication date 2020-10-14 at 10:42
?
Published to Thingiverse on: 2015-03-24 at 06:39
Design number 212583
mechengineermike

mechengineermike

3D printer file info

3D model description

I am writing a blog series about designing a partially 3d printed test machine and using it to analyze the mechanical properties of 3D printed materials. You can read about the project at the link at the bottom, any feedback or fresh ideas will be welcome!

.

The rectangle is a test specimen specifically designed for a 4 point bend loading on my machine. The part 'should' require 200 lbs to break when printed at 100% infill.

.

The test fixture design is also included here to reduce the size of later bom's. The fixture is designed so that the load path is 100% steel-to-steel rather than through any plastic, which keeps the frame stiff.

.

http://engineerdog.com/2015/03/24/introduction-to-3d-printing-materials-testing-series/

3D printing settings

Specimen Dimensions: 5.25" x .5" x .375"

To be printed with various infills for the purpose of mechanical testing.

*Four Point bend fixture parts list:

(All parts are available at common big box hardware stores!)

(4)- socket head cap screws

(2)- 7" long slotted hole channel (13/16" Γ— 1 5/8")

(4)- standard strut channel nuts

(4)- 1/2" NOT x 3" long pipe nipples

(8)- rubber bands

Tags

Advertising

Issue with this design? Report a problem.
Check out similar designs

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your banner blocker (AdBlock, …) and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon.

  • DONATE: If you want, you can make a donation via Ko-Fi πŸ’œ.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!

Sharing and downloading on Cults3D guarantees that designs remain in makers community hands! And not in the hands of the 3D printing or software giants who own the competing platforms and exploit the designs for their own commercial interests.

Cults3D is an independent, self-financed site that is not accountable to any investor or brand. Almost all of the site's revenues are paid back to the platform's makers. The content published on the site serves only the interests of its authors and not those of 3D printer brands who also wish to control the 3D modeling market.
Currency: USD
Cults.
100% secure payment by credit card, PayPal, Apple Pay, Google Pay, etc.
View all payment options.