10. Mechanical Design - Machine Design¶
In the first part of the Mechanical Design project, the group is tasked with designing a machine encompassing mechanism, actuation, automation, and application. They will construct the mechanical components and manually operate the machine, documenting the entire group project. Meanwhile, individuals are required to document their individual contributions. In the second part, the group will proceed to actuate and automate the machine, continuing to document the group project, while each member also documents their personal contributions.
Assigmnent checklist¶
| Item | Activity | Status |
|---|---|---|
| 1 | Documented the machine building process to the group page. | Done |
| 2 | Documented your individual contribution to this project on your own website. | Done |
| 3 | Linked to the group page from your individual page as well as from group page to your individual pages. | Done |
| 4 | Shown how your team planned, allocated tasks and executed the project (Group page). | Done |
| 5 | Described problems and how the team solved them (Group page). | Done |
| 6 | Listed possible improvements for this project (Group page). | Done |
| 7 | Included your design files (Group page). | Done |
| 8 | You need to present your machine globally and/or include an aprox. 1 min video (1920x1080 HTML5 MP4) + slide (1920x1080 PNG) (Group page). | Done |
Group Assigmnents¶
In this assignment, we will address the following tasks:
- Design a machine that includes mechanism + actuation + automation + application.
- Build the mechanical parts and operate it manually Document the group project.
- Actuate and automate your machine
- Document the group project.
WELDBOT
We met as a team to define what machine we would develop and, considering the impact of mining in the city of Arequipa, we decided to focus on a robotic arm. This device is designed to innovate in mining maintenance, specifically in the tasks of coating and welding the mantles of a mining crusher.
In the image you can see the first sketch of our idea. This is only the beginning of our ambitious project. For more details about the complete project, you can check it here. Now, I invite you to join me in the development of the mechanical part of this exciting project. In our initial sketch, we highlighted the implementation of a multi-position mechanism and a flexible coupling, which will allow for greater precision and adaptability in maintenance operations. In addition, we have considered the use of advanced technology, such as the XIAO RP2040 module for integration with IoT systems, which will facilitate remote monitoring and control of the robotic arm. We are excited about the possibilities that this project can offer to improve efficiency and safety in mining operations. Click on the link to learn more about our group project!
Individual Assigmnents¶
In this assignment, we will address the following tasks:
- Document your individual contribution.
- Document your individual contribution.
Cone Crusher mantle
- First we open a sketch, design the profile and create the centerline.
- With this we use the Revolve tool and select the profile and the axis and click “OK”.
- Then with the “Shell” tool we make a casting to the part with a thickness of 4mm.
- We create a sketch on the front face, project the circle of the cone cap and make an offset of 2mm.
- With the circle offset 2mm we apply an extrusion big enough to go through the cone lid.
Main Base
- First we make the main sketch where we will perform the extrusion operations and also where some lines and curves will be copied to make the other parts.
- We apply an extrusion with the thickness of the part.
- Then the other boolean cutting extrusions.
- As a final result we have this piece.
- Finally we make the dimensional drawing with the respective labeling.
Tambour Frame 18mm Tambour Frame 9mm
- We have two pieces exactly the same with the difference in height of 18mm and 9mm. First we create a sketch and copy the lines of the main base and delete all the lines and curves that are not going to be used.
- Then we apply the extrusion operations as needed.
3. Finally, we draw up the dimensional drawing with the respective labeling.
Step Motor Mount
- First we create a sketch and copy the lines of the main base and delete all the lines and curves that are not going to be used.
- Then we apply the first extrusion operation.
- Then we apply the Boolean extrusion cut operations for the custom motor coupling.
- Finally we make the dimensional drawing with the respective labeling.
Bottom Base
- First we create a sketch and copy the lines of the main base and delete all the lines and curves that are not going to be used.
- Then we create the first extrusion operation with the height of the MDF thickness to be used.
- Then we apply the Boolean extrusion operations of cut for the coupling of the custom motor.
- Finally, we make the dimensional drawing with the respective labeling.
Top Tray
- First we create a sketch and copy the lines of the main base and delete all lines and curves that are not going to be used.
- Then we create the first extrusion operation with the height of the MDF thickness to be used.
- Finally, we make the dimensional drawing with the respective labeling.
Motor Coupling
- First we make a sketch copying the lines of TopTray making an offset of 0.3 for the socket, then we perform the corresponding extrusion operations.
- We make a hole to place a M3 bolt to hold the motor shaft.
- Through this hole we create an M3 thread profile with a pitch of 0.5.
- With the Coil tool, we indicate the pitch and the height of the thread.
- Finally, we draw up the dimensional drawing with the respective labeling.
Bearing Support
- First we create a sketch and copy the lines of the main base and delete all lines and curves that are not going to be used.
- Then with the extrusion operations we make the modeling of the parts.
- And with the Boolean cutting operations we make the holes where the axle and the bearing will be mounted.
- Finally we make the dimensional drawing with the respective labeling.
With all the parts designed we make the assembly drawing with its respective label and parts list.
Download Files¶
Issues, musings, and learnings.¶
The bearing and shaft supports, some of which were entering too tightly, so the “Horizontal Expansion” on the Ultimaker Cura slicer was modified for a satisfactory impression.