Grabber/Reacher Teeth Replacement - Repair
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Replacing a missing part on a grabber/reacher assistive device.
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Model information
- Source
- Printables
- Category
- Home Medical Tools
- License
- Creative Commons — Public Domain
Grabbers (also called Reachers) are assistive tools to help people reach/grab items which are otherwise hard to get hold of. I happened to have one which was missing the "teeth" on the grabbing end (the yellow part in the photos). I also had another one which was not broken (see photos) so I used that to model a replacement part.
Optional additional part : 0.125" x 1" magnet (shortened to 14mm by simply breaking it)
Based on just the two examples I have, it is clear that these grabber devices come in slightly different sizes and designs, so my part will likely not fit every grabber available. However, the part can be scaled and otherwise modified to fit other grabbers; I have also included STEP files and access to the OnShape CAD files to enable modifications. Also included is a dimensioned drawing of the "un-split" part as an aid to scaling. Note there is a cavity on the bottom of the part to provide clearance for there end of the screw holding on the "finger" on the end of the grabber.
The two grabbers I have both had magnets in the grabber end to add an additional "grabbing" capability; I do not find these of much use, but I have included the option to add a magnet. I have also included a "NoMagnet" version to skip this option.
Assembly and Use
The teeth are print in two halves (left and right). Assembly is as simple as putting the two halves together (with the magnet in place if you are using one) and then inserting the assembly into the end of the grabber. I found that the fit is tight enough to hold the parts together and in place without glue, but gluing is an option if you find it necessary.
Print Instructions
Print in FLEX/TPU* using the 3mf files provided, otherwise :
0.1mm layer height
5 perimeters
15% grid infill
painted on supports (tree/organic)
needed under the "small teeth" at the front.
complete individual objects
meaning : print both parts in the same print job, but one at a time
I think that a flexible filament provides the best "grip" for these devices, but PLA or PETG should also work (and are easier to print).
CAD
The OnShape 3D CAD files for this are here :