Filament type: TPU + (PLA or PETG)

Layer height: 0.20mm

Infill: 15-20%

Supports: None

Wall count: 4

Estimated filament used:

• PETG/PLA About 50 Grams

• TPU About 17 Grams

Print difficulty: Moderate

Print time:

• PETG/PLA About 2 Hours

• TPU About 1 Hour

Added materials: Superglue

Tools needed: Clamps (Optional)

Post processing: None

Time to assemble: 5 Minutes

Assembly Process: Take the two pieces and add a small amount of superglue to the inner rim of the PLA or PETG piece. Place the TPU insert into the inner rim and use clamps or binder clips to hold it in place while drying.

Functional Use: This device is a two-part jar opener with a rigid body and a flexible TPU insert as the inner rim. The insert grips the lid, and the rigid body provides the user with a wider surface and greater leverage to open jars.

Relevant Occupations: Meal Preparation

Client Factors: May be relevant when grip strength or wrist and forearm range of motion is reduced.

Performance Skills: With one hand on the jar, the client grips and turns the lid with the opener, which requires less force than turning it with a bare hand.

Safety Considerations: Check the bond between the insert and the body before use, as it can fail under load and cause the tool to slip. Clean the tool because it can come in contact with food.

Limitations: The smallest section of the device produces less leverage than the other two larger sections. The bond between the two parts can fail under heavy force. The person still supplies the turning force. It is not a cleared medical device, so its use must be a clinical decision made by the treating occupational therapist.

Issues: None

Recommendations: Rotate the TPU part 180 degrees along the X or Y axis before printing.

Ease of use: Easy

Test results or review: The part works as intended.

Original file link: https://www.thingiverse.com/thing:4877138

Creator credit: Thingimaker

License: Creative Commons - Attribution