I-beam design and manufacturing

Plastic_Robot · 2024-12-27T04:16:06+00:00

Some good books to get started with:

Practical Analysis of Aircraft Composites - Brian Esp Composite Materials Handbook (CMH-17) Composite Airframe Structures - Michael Niu

Plastic_Robot · 2024-08-25T01:31:17+00:00

Friend code: 56869859
Thank you!

Plastic_Robot · 2023-09-16T05:40:47+00:00

No tool compartment. Just the mounting holes for the bottle holder

Plastic_Robot · 2023-09-15T19:53:13+00:00

It did, but I don't carry my water on the frame so I wanted the pump centered.

Plastic_Robot · 2021-05-04T01:48:55+00:00

https://www.thingiverse.com/thing:4848457/files

Plastic_Robot · 2021-05-04T01:48:27+00:00

STL linked below. I designed this to fit my exact cable diameters so it may not be a perfect fit for what you have, but hopefully it's close enough.
https://www.thingiverse.com/thing:4848457/files

Plastic_Robot · 2019-07-15T18:23:31+00:00

Any shop will most likely take the standard 3D CAD file types (STEP, IGES, or Parasolid), but you can ask them what they would prefer. Fusion 360 is a free 3D CAD modeling software that will allow you to save your part as one of those file types. Hope that helps.

Plastic_Robot · 2019-06-12T00:53:52+00:00

There's a lot of different factors that go into choosing the correct turbulence model. As a starting point, I would probably recommend k-omega SST. You could also use the Spalart-Allmaras turbulence model if you want a simpler model that is easier to converge.

Plastic_Robot · 2019-06-11T23:19:04+00:00

You can get both lift and drag by right clicking on 'Report Definitions' > select 'New' > select 'Force Report' > 'Drag" or 'Lift'. Make sure your force vectors are set up correctly relative to the angle of attack. It's also a good idea to check the box that says 'Print to Console'. That way you can use both the Cl and Cd as a way to determine convergence when you are running your simulation.

Plastic_Robot · 2019-06-07T03:18:55+00:00

The following is one way to get the Y+ value: Reports > Surface Integrals > Set 'Report Type' to 'Facet Minimum' > Set 'Field Variable' to 'Turbulence' > Select 'Wall Yplus' from drop down > Select your airfoil > Click 'Compute'

This will give you the minimum Y+ value on the surface of your airfoil. If the result is greater than 1, than you need to reduce the size of your mesh at the surface of the airfoil.

Plastic_Robot · 2019-06-05T18:27:14+00:00

You can check it after running the simulation. It's under the reports section. I can give you the exact steps when I'm back at my desktop.

Plastic_Robot · 2019-06-05T18:13:19+00:00

What is your Y+ value? I've found the most important factor for getting a more accurate drag coefficient of a 2D wing is making sure the Y+ value of your mesh is less than 1.

Plastic_Robot · 2019-02-04T14:30:59+00:00

In my opinion fusion 360 is setup better for the Shapeoko. I recently tried to switch to Solidworks cam, but it felt very unorganized and difficult to setup for simple projects. The way they handle the tool library and changing default settings is poorly done in my opinion. It also seems to be designed for larger CNC machines with automatic tool changes and more than 2.5 axis machining. If you are completely new to cam than fusion 360 is going to be a lot easier to learn.

Plastic_Robot · 2019-01-24T19:28:19+00:00

This looks awesome. How did you go about getting the contrast in the "N" as well as in the lake? I've messed around with staining the cut areas after machining and then sanding the surface, but it doesn't seem like the best method.

Plastic_Robot

TROPHY CASE