computer control Cutting

This week I made demension slot, press fit kit , sticker, sugar snow and chocolate kerf.

download all files

slot dimensions and laser cut test

I and my FabLab member made slot dimensions. My sharing is plat version(No fillet).

• I modeled with Fusion360 parametrically.


• Cutting parameters test.speed:10 power:80 Hz:1000 pass:4 is good.

• cardboard 3mm
• Trotec Speedy100" Speedy100（30W）
• parameters:Speed 10,power 80, ppi/Hz 1000, pass 4 is better.

  No.	speed	power	ppi/Hz	pass
  1	10	20	1000	1
  2	10	40	1000	1
  3	10	60	1000	1
  4	10	80	1000	1
  5	10	100	1000	1
  6	10	80	1000	2
  7	10	80	1000	3
  8	10	80	1000	4
  9	10	80	1000	5

  

• 2.8mm is tight.

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!
  

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

• 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.