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Design Method of Digitally Fabricated Spring Glass Pen
KengoTanaka* Kohei Ogawa* Tatsuya Minagawa Yoichi Ochiai
*First joi...
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
Introduction
Various writing materials
● Pencil
● Marker pen
● Ballpoint pen
● Writing brush etc...
3
Introduction
● There are various factors that affect the feeling
of writing
ex.) Fountain pen
The pen tip can be made of v...
Introduction
● Chinese Calligraphy
○ Writing sensation changes depending on hair material
■ weasel hair
■ Pig hair
■ Horse...
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
“EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004
Related Work
7
“EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004
Related Work
8
“EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004
Related Work
9
Related Work
However, these pens can not reproduce the feeling of softness.
10
Related Work
“FlexStroke: a flexible, deformable brush-tip with dynamic stiffness for
digital input” Xin et al. 2014
11
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
Spring Glass Pen Spring Touch Pen
We made a glass pen and a stylus which structure reproduces the feeling of
softness when...
Implementation(Spring Glass Pen)
14
Implementation(Spring Glass Pen)
Pen axis
Structure for sucking
up ink by capillary
action
Prevent liquid from
moving up t...
Implementation(Spring Glass Pen)
Structure for sucking
up ink by capillary
action
Thin groove
16
Implementation(Spring Glass Pen)
Write with the brush laying down
You can write a lot with
just one attachment
17
Implementation(Spring Glass Pen)
18
Implementation(Spring Glass Pen)
19
We decided to make a pen that can reproduce various levels of softness.
Implementation(Spring Glass Pen)
20
Implementation(Spring Glass Pen)
When thinking about a structure that can
change softness, we have come up with a
spring.
...
Implementation(Spring Glass Pen)
We used a 3D printer to make various springs of elasticity.
22
“Spring-Pen” Tanaka et al. 2017
Implementation(Spring Glass Pen)
23
Implementation(Spring Glass Pen)
24
Height
Implementation(Spring Glass Pen)
25
Height
Revolution
Implementation(Spring Glass Pen)
26
Height
section size
Revolution
Implementation(Spring Glass Pen)
27
Output spring
Spring can be made using polyjet 3D printer.
Implementation(Spring Glass Pen)
28
Implementation(Spring Glass Pen)
● 3DCAD Software
○ Fusion 360
29
Implementation(Spring Glass Pen)
30
Implementation(Spring Glass Pen)
● 3D Printer
○ Objet260 Connex3
■ PolyJet
31
Implementation(Spring Glass Pen)
32
Implementation(Spring Glass Pen)
A capillary phenomenon occurs in the groove of the pen tip, and
it can actually be used f...
Implementation(Spring Glass Pen)
Joint type various springs in our booth
Merit of joint type
● The material of the 3D prin...
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
Spring Touch Pen
Implementation(Spring Touch Pen)
36
Implementation(Spring Touch Pen)
Recently, smartphones and tablet
terminals are widely used.
And many users are using styl...
However, with a normal stylus pen,
the actual feeling of writing is hard.
We think that expression will be
enriched by rep...
Implementation(Spring Touch
Pen)
By adding softness to the stylus
pen, it feels like a brush.
39
Implementation(Spring Touch Pen)
Like a glass pen, by
adapting the structure of the
spring to the pen, it creates
softness...
Implementation(Spring Touch Pen)
Fusion360
objet260 connex
41
Implementation(Spring Touch Pen)
UBS-0010LAg
We used a conductive powder (UBS-0010 LAg)
to use the pen with a tablet.
By a...
Implementation(Spring Touch Pen)
43
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
Analysis
We analyzed the elasticity of the spring.
Analysis software is Fusion 360.
45
Analysis
Fixed
46
Analysis
1N
47
Analysis
48
Analysis
Max
Displacement
0.3644 (mm)
49
Analysis
It is the result of analyzing the displacement of the spring by changing the
parameters of the coil.
50
Analysis
51
Analysis
52
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
53
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
Max
Displacement
= 0.3644mm
54
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
Max
Displacement
= 0.3644mm
55
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
R5H27.5S3.5
= Revolutions= 5
Height= 27.5mm,
Section siz...
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
R5H27.5S3.5
= Revolutions= 5
Height= 27.5mm,
Section siz...
Analysis
R3H20S4
= Revolutions= 3
Height= 20mm,
Section size= 4mm
R5H27.5S3.5
= Revolutions= 5
Height= 27.5mm,
Section siz...
Agenda
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analys...
1. It is difficult to make a spring glass pen with FDM.
2. Our pen can not reproduce various softness with a single pen.
3...
4. The part holding the pen is limited to the part above the
spring. People who hold a pen tip may be hard to use.
Discuss...
4. The part holding the pen is limited to the part above the
spring. People who hold a pen tip may be hard to use.
Discuss...
4. The part holding the pen is limited to the part above the
spring. People who hold a pen tip may be hard to use.
Discuss...
5. Sometimes the pen is broken when you apply strong force.
Discussion and Limitations
Please do not
apply strong force!
64
1. Introduction
2. Related Work
3. Implementation (Spring Glass Pen)
4. Implementation (Spring Touch Pen)
5. Analysis
6. D...
1. We proposed a method to make a practical pen by
using 3D printer.
2. We propose a method that allows us to freely chang...
Please feel comfortable writing due to the difference in softness of spring,
please visit and experience at our booth.
S-2...
Thank you for listening!
68
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Design Method of Digitally Fabricated Spring Glass Pen - SIGGRAPH 2018

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Published on Aug 20, 2018

This slide was presented at SIGGRAPH 2018.
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Design Method of Digitally Fabricated Spring Glass Pen - SIGGRAPH 2018

  1. 1. Design Method of Digitally Fabricated Spring Glass Pen KengoTanaka* Kohei Ogawa* Tatsuya Minagawa Yoichi Ochiai *First joint authors
  2. 2. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 1
  3. 3. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 2
  4. 4. Introduction Various writing materials ● Pencil ● Marker pen ● Ballpoint pen ● Writing brush etc... 3
  5. 5. Introduction ● There are various factors that affect the feeling of writing ex.) Fountain pen The pen tip can be made of various kinds of metals, that differently affect the writing sensation (e.g., smoothness, thickness, etc) Reproduce soft writing comfort 4
  6. 6. Introduction ● Chinese Calligraphy ○ Writing sensation changes depending on hair material ■ weasel hair ■ Pig hair ■ Horse tail hair There is no practical implementation of a pen that writes similarly to a brush 5
  7. 7. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 6
  8. 8. “EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004 Related Work 7
  9. 9. “EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004 Related Work 8
  10. 10. “EV-Pen” Wang et al. 2016“Haptic Pen” Lee et al. 2004 Related Work 9
  11. 11. Related Work However, these pens can not reproduce the feeling of softness. 10
  12. 12. Related Work “FlexStroke: a flexible, deformable brush-tip with dynamic stiffness for digital input” Xin et al. 2014 11
  13. 13. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 12
  14. 14. Spring Glass Pen Spring Touch Pen We made a glass pen and a stylus which structure reproduces the feeling of softness when used for writing Implementation 13
  15. 15. Implementation(Spring Glass Pen) 14
  16. 16. Implementation(Spring Glass Pen) Pen axis Structure for sucking up ink by capillary action Prevent liquid from moving up to pen axis Ink stopper Thin groove 15
  17. 17. Implementation(Spring Glass Pen) Structure for sucking up ink by capillary action Thin groove 16
  18. 18. Implementation(Spring Glass Pen) Write with the brush laying down You can write a lot with just one attachment 17
  19. 19. Implementation(Spring Glass Pen) 18
  20. 20. Implementation(Spring Glass Pen) 19
  21. 21. We decided to make a pen that can reproduce various levels of softness. Implementation(Spring Glass Pen) 20
  22. 22. Implementation(Spring Glass Pen) When thinking about a structure that can change softness, we have come up with a spring. We thought that spring is a suitable structure because it can change softness with a simple structure. 21
  23. 23. Implementation(Spring Glass Pen) We used a 3D printer to make various springs of elasticity. 22
  24. 24. “Spring-Pen” Tanaka et al. 2017 Implementation(Spring Glass Pen) 23
  25. 25. Implementation(Spring Glass Pen) 24
  26. 26. Height Implementation(Spring Glass Pen) 25
  27. 27. Height Revolution Implementation(Spring Glass Pen) 26
  28. 28. Height section size Revolution Implementation(Spring Glass Pen) 27
  29. 29. Output spring Spring can be made using polyjet 3D printer. Implementation(Spring Glass Pen) 28
  30. 30. Implementation(Spring Glass Pen) ● 3DCAD Software ○ Fusion 360 29
  31. 31. Implementation(Spring Glass Pen) 30
  32. 32. Implementation(Spring Glass Pen) ● 3D Printer ○ Objet260 Connex3 ■ PolyJet 31
  33. 33. Implementation(Spring Glass Pen) 32
  34. 34. Implementation(Spring Glass Pen) A capillary phenomenon occurs in the groove of the pen tip, and it can actually be used for writing. We control writing comfort by controlling the parameters of spring (revolutions, height, section size) 33
  35. 35. Implementation(Spring Glass Pen) Joint type various springs in our booth Merit of joint type ● The material of the 3D printer is low cost, because it can be reworked for each part. ● By changing only the part of the spring, you can easily change the writing comfort 34
  36. 36. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 35
  37. 37. Spring Touch Pen Implementation(Spring Touch Pen) 36
  38. 38. Implementation(Spring Touch Pen) Recently, smartphones and tablet terminals are widely used. And many users are using stylus pens to operate tablet screens. When drawing digital pictures and letters, a stylus pen is necessary. 37
  39. 39. However, with a normal stylus pen, the actual feeling of writing is hard. We think that expression will be enriched by reproducing the soft touch of the brush. Implementation(Spring Touch Pen) 38
  40. 40. Implementation(Spring Touch Pen) By adding softness to the stylus pen, it feels like a brush. 39
  41. 41. Implementation(Spring Touch Pen) Like a glass pen, by adapting the structure of the spring to the pen, it creates softness 40
  42. 42. Implementation(Spring Touch Pen) Fusion360 objet260 connex 41
  43. 43. Implementation(Spring Touch Pen) UBS-0010LAg We used a conductive powder (UBS-0010 LAg) to use the pen with a tablet. By applying this conductive powder around the pen, it was possible to perform touch recognition with a terminal device such as a smartphone or a pen tablet 42
  44. 44. Implementation(Spring Touch Pen) 43
  45. 45. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 44
  46. 46. Analysis We analyzed the elasticity of the spring. Analysis software is Fusion 360. 45
  47. 47. Analysis Fixed 46
  48. 48. Analysis 1N 47
  49. 49. Analysis 48
  50. 50. Analysis Max Displacement 0.3644 (mm) 49
  51. 51. Analysis It is the result of analyzing the displacement of the spring by changing the parameters of the coil. 50
  52. 52. Analysis 51
  53. 53. Analysis 52
  54. 54. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm 53
  55. 55. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm Max Displacement = 0.3644mm 54
  56. 56. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm Max Displacement = 0.3644mm 55
  57. 57. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm R5H27.5S3.5 = Revolutions= 5 Height= 27.5mm, Section size= 3.5mm Max Displacement = 0.3644mm 56
  58. 58. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm R5H27.5S3.5 = Revolutions= 5 Height= 27.5mm, Section size= 3.5mm Max Displacement = 1.645mm Max Displacement = 0.3644mm 57
  59. 59. Analysis R3H20S4 = Revolutions= 3 Height= 20mm, Section size= 4mm R5H27.5S3.5 = Revolutions= 5 Height= 27.5mm, Section size= 3.5mm By changing the parameters of the coil, we can change elasticity. Max Displacement = 1.645mm Max Displacement = 0.3644mm 58
  60. 60. Agenda 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions 59
  61. 61. 1. It is difficult to make a spring glass pen with FDM. 2. Our pen can not reproduce various softness with a single pen. 3. Currently, it can not be made automatically according to personal taste. You just choose from among the pens we made. Discussion and Limitations 60
  62. 62. 4. The part holding the pen is limited to the part above the spring. People who hold a pen tip may be hard to use. Discussion and Limitations 61
  63. 63. 4. The part holding the pen is limited to the part above the spring. People who hold a pen tip may be hard to use. Discussion and Limitations above 62
  64. 64. 4. The part holding the pen is limited to the part above the spring. People who hold a pen tip may be hard to use. Discussion and Limitations above pen tip 63
  65. 65. 5. Sometimes the pen is broken when you apply strong force. Discussion and Limitations Please do not apply strong force! 64
  66. 66. 1. Introduction 2. Related Work 3. Implementation (Spring Glass Pen) 4. Implementation (Spring Touch Pen) 5. Analysis 6. Discussion and Limitations 7. Contributions Agenda 65
  67. 67. 1. We proposed a method to make a practical pen by using 3D printer. 2. We propose a method that allows us to freely change pen softness by using the spring structure. Contributions 66
  68. 68. Please feel comfortable writing due to the difference in softness of spring, please visit and experience at our booth. S-259 Design Method of Digitally Fabricated Spring Glass Pen Kengo Tanaka Kohei Ogawa Tatsuya Minagawa Yoichi Ochiai 67
  69. 69. Thank you for listening! 68

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