Commit baa8e088 authored by Jonathan Chery's avatar Jonathan Chery 💬
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Finished week 08

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# 8. Computer controlled machining
This week I worked on:
- Learning About Vcarve (Making tool path in VCarve)
- Designing a worktable on Fusion 360
- Learning to use the ShopBot
## Learning About Vcarve (Making tool path in VCarve)
We started this week learning about Vcarve. Vcarve is a CAD/CAM software with 3D and limited 2D functionality. Thanks to [Spencer Mewherter's](http://fabacademy.org/2020/labs/dassault/students/spencer-mewherter/) video ([link](https://www.loom.com/share/f1579adffd7e49f6a94be6ecdf271c88)) where he provides a ~40 minutes tutorial of how to use Vcarve for the shopbot we are using to make something big. We use Vcarve to create the tool path for the Shopbot.
- Learning Vcarve
- Designing a Worktable on Fusion 360
- Designing Modular Shelf on Fusion 360
- Milling & Assembling The Modular Shelf
- Link to Group Assignment
## Learning Vcarve
I started this week learning about Vcarve. Vcarve is a CAD/CAM software with 3D and limited 2D functionality. Thanks to [Spencer Mewherter's](http://fabacademy.org/2020/labs/dassault/students/spencer-mewherter/) video ([link](https://www.loom.com/share/f1579adffd7e49f6a94be6ecdf271c88)) where he provides a ~40 minutes tutorial of how to use Vcarve for the shopbot we are using to make something big. We use Vcarve to create the toolpath for the Shopbot.
In Vcarve, we first start off by selecting "Single Sided" under **Job Type**.
......@@ -24,10 +28,10 @@ We first import a file. We often want to do the design work in another file and
*DXF and PDF are the best export file. One of the major issue you'll have is with scaling. The way to address this is before you export, make sure you give yourself a scale box around your entire piece. Also, it is good to check if all your vectors are closed. To check if your vectors are closed, you can watch at [07:24](https://www.loom.com/share/f1579adffd7e49f6a94be6ecdf271c88)*
The next thing we want to do is to see if we want to do any modification to our tool path - [09:28](https://www.loom.com/share/f1579adffd7e49f6a94be6ecdf271c88). So, if you want parts that fit into each other, we have to deal with them by doing a fillet. There's a couple of ways of doing this. You can round the corners on the piece that you're fitting into it. Another option is you can overshoot your corner so that the cutter clears it and then another swuare edge shaoe can fit into it. *The radius of your tool is the diameter of your fill. Because these are dependent on your tool size, it's important to know ow to edit these on the fly in the software.*
The next thing we want to do is to see if we want to do any modification to our toolpath - [09:28](https://www.loom.com/share/f1579adffd7e49f6a94be6ecdf271c88). So, if you want parts that fit into each other, we have to deal with them by doing a fillet. There's a couple of ways of doing this. You can round the corners on the piece that you're fitting into it. Another option is you can overshoot your corner so that the cutter clears it and then another swuare edge shaoe can fit into it. *The radius of your tool is the diameter of your fill. Because these are dependent on your tool size, it's important to know ow to edit these on the fly in the software.*
Because we are using vCarve in an open space where everyone has access to it, it is good to always verify all of the settings whenever you create a tool paths by verifying all the speeds. and feeds.
Because we are using vCarve in an open space where everyone has access to it, it is good to always verify all of the settings whenever you create a toolpaths by verifying all the speeds. and feeds.
Using the shopbot allows you to climb male or demale conventionally. This refers to the direction it oves aroun the ckub slimbing and you get a better surface finish. Conventional milling puts a little bit, less force on the machine and the material we're working in. Ramping plunges refers to while the tool is moving downward, it'll also move laterally. With some tools, it's important to know that some tools don't like to plunge straight down and you can see that in some geometry.
......@@ -47,9 +51,9 @@ So, the next step to **Export Your G-Code** to another machine [26:29](https://w
Checking your machine time is good for catching large errors, specifcially unit errors and feed rates.
To export, go into **Save Tool Path** > **Visible toolpaths to one file** > Select the first pocket we are going to cut (we are going to manually cut the tool path. It is recommended to review each tool path slowing) > **Select a Post Processor** [ShopBot TC (inch)(*.shp)] > Check off **Output direct to machine**
To export, go into **Save Tool Path** > **Visible toolpaths to one file** > Select the first pocket we are going to cut (we are going to manually cut the toolpath. It is recommended to review each toolpath slowing) > **Select a Post Processor** [ShopBot TC (inch)(*.shp)] > Check off **Output direct to machine**
## Designing a workbench on Fusion 360
## Designing a Worktable on Fusion 360
I have a lot of boxes in my apartment and it'll be nice to have a place to store and open packages. That said, I wanted to create a workbench to be able to store, open packages, also do some projects on. So, the goal was to create a workbench. I found a Youtube video of a workbench that was created using Fusion and I thought this would be a nice place to start - [Link](https://www.youtube.com/watch?v=nJLVbv0uuOQ).
I started off my design looking for some additional inspiration on [Pinterest](https://www.pinterest.com/). I searched for **Plywood Workbench**. The result were quite surprising and interesting. The next step was starting my design by following the tutorial on youtube.
......@@ -398,16 +402,15 @@ Now, the final design:
![final_design](../images/week08/final_design.png)
![mahogany_table](../images/week08/mahogany_table.png)
Reflection:
With the help of [Spencer Mewherter](http://fabacademy.org/2020/labs/dassault/students/spencer-mewherter/), we were able to inspect my design and even though it was good, it needed to be worked on as the mills were unable to cut the woods in a way to make the design a reality. That being said, Spencer recommended I look at [Open Desk](https://www.opendesk.cc/) for inspiration.
## Inspiration:
While looking through the sites, I found two items that I would like to create:
## Designing Modular Shelf on Fusion 360
While looking through the sites, I found two items that I would like to create some version of it:
1. [One to Several Table](https://www.opendesk.cc/atfab/one-to-several-table#get-it-made)
2. [Fin Bookshelf Planter](https://www.opendesk.cc/fin/fin-bookshelf-planter#get-it-made)
However, I decided to focus on the [Fin Bookshelf Planter](https://www.opendesk.cc/fin/fin-bookshelf-planter#get-it-made).
I decided to focus on the [Fin Bookshelf Planter](https://www.opendesk.cc/fin/fin-bookshelf-planter#get-it-made).
![front](../images/week08/front.png)
![side](../images/week08/side.png)
......@@ -495,13 +498,24 @@ After several copying and moving, the final result came to be:
![final_result](../images/week08/final_result.png)
Once I finshed with my final design, it was time to bring it to the ShopBot. After several hours of working with the ShotBot, I was able to turn my design into funiture.
## Milling & Assembling The Modular Shelf
Once I finshed with my final design, it was time to bring it to the ShopBot. After several hours of working with the ShotBot, I was able to turn my design into funiture. Using the ShopBot, I milled my cuts after created a toolpath on VCarve to mill on the ShopBot. Creating a toolpath took approximately an hour or less. Once the toolpath was created, my project was ready to be cut.
I added some unique features to my cut such as:
![chery.build](../images/week08/chery.build.png)
The result of the cut can be viewed below:
![shopbot](../images/week08/shopbot.png)
Now, assembling my modular shelf was simple. After sanding the pieces, I was able to put it together.
![front_view](../images/week08/front_view.png)
![side_view](../images/week08/side_view.png)
I needed to screw in some sides as some of the pieces wouldn't stick together. But, once the sides were screwed, the modular shelf was more sturdy for items.
# Link to Group Assignment
This week group assignment was to use the test runout, alignment, speeds, feeds, and toolpaths for the machine and to document the work. [Group's Page](http://fabacademy.org/2021/labs/dassault/)
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