computer control Cutting
This week I made demension slot, press fit kit , sticker, sugar snow and chocolate kerf.
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slot dimensions and laser cut test
I and my FabLab member made slot dimensions. My sharing is plat version(No fillet).
download file
vinyl cutter
I made a sticker for a macbook. This is my husband's icon.2/14 is Valentine's day. In Japan, women give something to men (often chocolate) on Valentine's Day, so I made it for my husband.
I mede data with illustrator.(put picture > trace expansion> ungroup> leave necessary parts)
Cut
craftrobo Pro(CE5000-40-CRP)
parameters offset:0 speed:17 pressure:7 acceleration:1 pass:1
After cutting, I rid line parts.I used it and present back parts.
download file
Press fit kit
I planed to make soft&hard press kit. It can bend like below pictures.
cutting test
First, I tried EVA cutting test.EVA(Ethylene-Vinyl Acetate )
is melt by laser. So I wanted to use minimum power to cut.
EVA sheet 3mm
Trotec Speedy100" Speedy100(30W)
parameters::Speed 10,power 70, ppi/Hz 10000, pass 3 is better.
No.
speed
power
ppi/Hz
pass
0
12
65
700
1
1
20
40
1000
2
2
10
50
10000
3
3
10
70
10000
3
4
15
50
10000
4
5
15
60
10000
4
6
13
65
10000
4
7
15
65
10000
4
ver 1
I made models with fusion360
export dxf (sketch>right click>dxf export)
open by illustrator
trim unnecessary line(ungroup>select all > pass finder >outline>ungroup>delite)
laser cut data (linking pass/line size 0.001pt/ color red)
Cut(speed 10 power70 Hz10000 pass3)
These joints were loose.
ver2
I changed width 3.0mm→2.8mm (green arrow of above image)
changed inner hole 2.0mm→5.0mm. Big hole makes joints more softer.
made rod
These joints were still loose.
ver3
I changed joints form like clip(2.8mm)
changed width 2.8mm→2.6mm
ver4
image press_fit_kit_ver4.jpg
I change width 2.6mm→2.4mm
made MDF rods (thickness 3mm / width 2.8mm).
Trotec Speedy100" Speedy100(30W)
MDF 3mm: speed 1 / power 90/ ppi 1000/pass 1
EVA sheet 3mm: speed 10 / power 70 / ppi 10000 /pass 3
download ai files
download fusion files
Additional
sugar snow
I made snow cristal from sugar.
No.
speed
power
ppi/Hz
pass
1 Kerf
5
30
500
1
2 Kerf
10
30
500
1
3 Cut
2
45
500
1
4 Cut
2
45
500
2
It should be "air off"
The time to put it out is very exciting!
VIDEO
laser kerf chocolate
No.
speed
power
ppi/Hz
pass
1 Kerf
10
15
500
1
2 Kerf
20
25
500
1
3 Kerf
5
10
500
1
final project's miniature
VIDEO
First I modeled by Fusion360. It can be changed base size and materials thicknesss.
I exported 2D data from 3D model by using blueprint tool.
I imported to illustrator.I excluded extra data.And offset 0.1mm from original data.
I cut cardboads(3mm) by Trotec Speedy100" Speedy100(30W).speed 10 / power 85/ ppi 1000/pass 4
I found that my model has problems about wiring space and lid opening. I'm updating the model.
memo
I should be careful about facus of laser.Materl it become out of focus.I should be pressed tightly to the stage.I used a tape.