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Commit c87f1141 authored by Mitalee Parikh's avatar Mitalee Parikh
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CCM update2

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......@@ -24,11 +24,11 @@ I started by making a 3D version of IKEA's FINVVARD to understand how it works.
![](./images/ccm/basic.jpg)
Since, I didn't have access to the lab during this week, I did the CAM part according to tools used in FabLabBCN.
Later when I used FabLab SP, I did it again using Vcarve Pro.
Later when I used FabLab SP, I did it again using Vcarve Pro.
2. Design
---
Then I started making individual joints so they can be digitally machined in 2-axes or 2.5-axes. I used some details from the 50 digital joints poster to design some details.
Then I started making individual joints so they can be digitally machined in 2-axes or 2.5-axes. I used some details from the 50 digital joints poster to design some details.
<img src="https://4.bp.blogspot.com/--n9402OLTus/U_6noVXA59I/AAAAAAAACSc/oZ05jYxALrg/s1600/j118.jpg" alt="traces" width="400"/><img src="https://2.bp.blogspot.com/-jbDFz7SGcr0/U_ciJGzoTUI/AAAAAAAAB_k/I0WwxF5HTmo/s1600/j62.jpg" alt="traces" width="400"/>
<img src="https://4.bp.blogspot.com/-s0gWF8SllU4/U_cbds0bfQI/AAAAAAAAB-s/eU6Buz-VbYE/s1600/j66.jpg" alt="traces" width="400"/><img src="https://d2mgbjyendvdw0.cloudfront.net/27204/03423/9ae702/slot-joint-02.standard.png" alt="traces" width="400"/>
......@@ -45,11 +45,10 @@ Here is how the final legs look. I need to make 2 of these and put any flat boar
3. Nesting
---
Next, I lay everything flat on the XY plane and did a make 2D. For nesting I used an online service called [nestandcut.com](https://nestandcut.com/) to nest all parts in twice the quantity on a sheet of 1220x1220x15 mm. (Half a sheet). I uploaded a dxf file that I export from Rhino and imported the nested dxf back.
Next, I lay everything flat on the XY plane and did a make 2D. For nesting I used an online service called [nestandcut.com](https://nestandcut.com/) to nest all parts in twice the quantity on a sheet of 1220x1220x15 mm. (Half a sheet). I uploaded a dxf file that I export from Rhino and imported the nested dxf back.
![](./images/ccm/nest.jpg)
I made some changes manually to fit it all in the available sheet. Like I put two parts insode the big board and nest it within to make more space for the missing parts. Here is what that looks like:
I made some changes manually to fit it all in the available sheet. Like I put two parts insode the big board and nest it within to make more space for the missing parts. Here is what that looks like:
![](./images/ccm/nested.jpg)
......@@ -63,22 +62,22 @@ I set the origin at the left bottom corner and the Z at the top of the material
![](./images/ccm/setup.jpg)
Next I set the tool - Flatmill 6mm, refering to the class notes and some previous documentations:
* Saved the tool as Flatmill 6mm
* Holder dia = 50
* Holder length = 45
* Shank dia = 6mm
* Tool dia = 6mm
* Shoulder length = 30mm
Next I set the tool - Flatmill 6mm, refering to the class notes and some previous documentations:
* Saved the tool as Flatmill 6mm
* Holder dia = 50
* Holder length = 45
* Shank dia = 6mm
* Tool dia = 6mm
* Shoulder length = 30mm
* Flute length = 30mm
Feed and speeds:
* Speeds: 12000 rpm
* Plunge: 2000 rpm
* Approach: 2000 rpm
* Engage: 2000 rpm
* Cut: 2000 rpm
* Retract: 2000 rpm
Feed and speeds:
* Speeds: 12000 rpm
* Plunge: 2000 rpm
* Approach: 2000 rpm
* Engage: 2000 rpm
* Cut: 2000 rpm
* Retract: 2000 rpm
* Departure: 2000 rpm
Next, in 2-axis functions there is a list of actions you can perform. For my design I needed engraving, profiling and pocketing.
......@@ -93,11 +92,11 @@ The insides of some parts that needed to be cleared were cut first. 2 parts need
![](./images/ccm/fullpocketing.jpg)
Settings:
* Cut pattern: Offset
* Cut direction: Conventional (Up cut) - standard for plywood
* Start point: inside
* Rough depth: 12
* Finish depth: 3
* Cut pattern: Offset
* Cut direction: Conventional (Up cut) - standard for plywood
* Start point: inside
* Rough depth: 12
* Finish depth: 3
#### Profiling
To cut the outside profiles of the parts, I set the profiling for 2.5 axis. I also made another profiling - inside fo2 curves that needed to be cut on the inside.
......@@ -109,10 +108,10 @@ Settings same as pocketing, set toolpath OUTSIDE the curves
#### Simulation
![](./images/ccm/simlulation1.jpg)
Then I ran a simulation and found some errors in the settings.
1. The cutting height did not match the level of the stock. It was cutting in the air. I adjusted this by going bacto the material panel and changing the stock thickness to 15mm. (It was 300 by mistake)
2. The tool path just ran once over all profiles and went in 15mm in one pass. I changed this by making the cut dept15mm in roughing and finishing at 12 and 3 respectively.
3. Some parts were creating double paths - so I deselected them from one layer and generated toolpaths again.
Then I ran a simulation and found some errors in the settings.
1. The cutting height did not match the level of the stock. It was cutting in the air. I adjusted this by going bacto the material panel and changing the stock thickness to 15mm. (It was 300 by mistake)
2. The tool path just ran once over all profiles and went in 15mm in one pass. I changed this by making the cut dept15mm in roughing and finishing at 12 and 3 respectively.
3. Some parts were creating double paths - so I deselected them from one layer and generated toolpaths again.
After running another simulation, it seemed fine.
![](./images/ccm/simlulation2.jpg)
......@@ -127,8 +126,9 @@ Will do this part when I return to the lab.
6. Assembly
---
Will do this part when I return to the lab.
Here's how it should look when done. (w/o the top surface) ![](./images/ccm/table.jpg)
Will do this part when I return to the lab.
Here's how it should look when done. (w/o the top surface)
![](./images/ccm/table.jpg)
7. References
---
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