Difference between revisions of "Gripper History"

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(Created page with "==Gripper Design Iterations== Original Design: thumb|The non-optimized gripper based on the UMI study Problems: Too flexible at fingertips, too stiff in...")
 
 
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==Gripper Design Iterations==
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== Gripper Design Iterations ==
Original Design:
 
[[File:Gripper 0.jpg|thumb|The non-optimized gripper based on the UMI study]]
 
Problems: Too flexible at fingertips, too stiff in inner surface
 
Updated version 1:
 
[[File:Gripper version 1.jpg|thumb|Updated version 1]]
 
Made ribs thinner at their ends so that they would bend more easily
 
Added triangular cuts along the inner surface to allow the material to flex
 
Problems: The triangular cut closest to the tip caused the inner surface of the grippers to tear
 
  
Updated version 2:  
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=== Updated Version 1 === 
[[File:Stompy gripper 2.jpg|thumb|Updated Version 2]]
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Made ribs thinner at their ends so that they would bend more easily. Added triangular cuts along the inner surface to allow the material to flex.
Moved slots to only align with the three thickest ribs, reducing potential for tears
+
Problems: The triangular cut closest to the tip caused the inner surface of the grippers to tear.
Created an angled profile where the tips of the grippers are narrower than the base
+
[[File:Gripper version 1.jpg|none|300px|Updated version 1]]
Problems: Screw holes were too large for screws to be inserted from below, tears persisted in some cases
 
  
Updated version 3:
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=== Updated Version 2 ===
[[File:Stompy gripper version 3.jpg|thumb|Updated version 3]]
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Moved slots to only align with the three thickest ribs, reducing potential for tears. Created an angled profile where the tips of the grippers are narrower than the base.
Decreased hole size to allow for better threading
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Problems: Screw holes were too large for screws to be inserted from below, tears persisted in some cases.
Problems: tears persisted, insufficient clearance for hex key to actually tighten the screws from above (necessary for use with slide rail)
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[[File:Stompy gripper 2.jpg|none|300px|Updated Version 2]]
  
Updated version 4:
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=== Updated Version 3 ===
[[File:Gripper version 4.jpg|thumb|Updated version 4]]
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Decreased hole size to allow for better threading.
Decreased profile of rib material to make screw installation process easier, decreased cross section of individual ribs to allow them to bend more
+
Problems: Tears persisted, insufficient clearance for hex key to actually tighten the screws from above (necessary for use with slide rail).
Problems: too flimsy in general, and particularly at tips
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[[File:Stompy gripper version 3.jpg|none|300px|Updated version 3]]
  
Updated version 5:
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=== Updated Version 4 ===
[[File:Updated version 5.jpg|thumb|Updated version 5]]
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Decreased profile of rib material to make screw installation process easier, decreased cross section of individual ribs to allow them to bend more.
Restored rib material and eliminated one triangular cut to solve tearing issue, attempted to print entirely without supports
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Problems: Too flimsy in general, and particularly at tips.
Problems: poor print quality due to lack of supports
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[[File:Gripper version 4.jpg|none|300px|Updated version 4]]
Updated version 6:
 
  
Used solid tip and fewer ribs in the other section.
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=== Updated Version 5 ===
Assembly with screws remained awkward
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Restored rib material and eliminated one triangular cut to solve tearing issue, attempted to print entirely without supports.
Updated version 7:
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Problems: Poor print quality due to lack of supports.
 +
[[File:Updated version 5.jpg|none|300px|Updated version 5]]
  
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=== Updated Version 6 ===
 +
Used solid tip and fewer ribs in the other section. Assembly with screws remained awkward.
 +
[[File:Stompy gripper version 6.jpg|none|300px|Updated version 6]]
  
Decreased profile of rib material to make screw installation process easier
+
 
 +
=== Updated Version 7 ===
 +
Switched cuts to the inside wall and eliminated redundant rib.
 +
[[File:Stomy gripper 7.jpg|none|300px|Updated version 7]]
 +
 
 +
=== Updated Version 8 ===
 +
Tapered inside wall and extended it to the now restored rib.
 +
[[File:Stompy gripper 8.jpg|none|300px|Updated version 8]]

Latest revision as of 21:49, 3 June 2024

Gripper Design Iterations[edit]

Updated Version 1[edit]

Made ribs thinner at their ends so that they would bend more easily. Added triangular cuts along the inner surface to allow the material to flex. Problems: The triangular cut closest to the tip caused the inner surface of the grippers to tear.

Updated version 1

Updated Version 2[edit]

Moved slots to only align with the three thickest ribs, reducing potential for tears. Created an angled profile where the tips of the grippers are narrower than the base. Problems: Screw holes were too large for screws to be inserted from below, tears persisted in some cases.

Updated Version 2

Updated Version 3[edit]

Decreased hole size to allow for better threading. Problems: Tears persisted, insufficient clearance for hex key to actually tighten the screws from above (necessary for use with slide rail).

Updated version 3

Updated Version 4[edit]

Decreased profile of rib material to make screw installation process easier, decreased cross section of individual ribs to allow them to bend more. Problems: Too flimsy in general, and particularly at tips.

Updated version 4

Updated Version 5[edit]

Restored rib material and eliminated one triangular cut to solve tearing issue, attempted to print entirely without supports. Problems: Poor print quality due to lack of supports.

Updated version 5

Updated Version 6[edit]

Used solid tip and fewer ribs in the other section. Assembly with screws remained awkward.

Updated version 6


Updated Version 7[edit]

Switched cuts to the inside wall and eliminated redundant rib.

Updated version 7

Updated Version 8[edit]

Tapered inside wall and extended it to the now restored rib.

Updated version 8