Hello, I’m looking for an opener to help a young girl unclip a two sided buckle on her walker. Thanks!
I have a 3D printer and I believe I could model and print an opener that would work for this application.
I will need more details before I can guarantee completion. Do you have photos or dimensions of this buckle? Many buckles are fairly standardized so even rough dimensions and a photo might be enough information.
@kajal This made me think of this device - wondering if we can apply similar principles
Thank you so much for responding. I have attached two photos of the buckle and the buckle when closed is roughly 3.5cm x 4cm. If you need anything else, please let me know. If you are able to make something, is there a cost and if so, how do we pay? Also, my client is in Surrey BC. Thank you!
Thanks for reaching out. I saw that and was thinking something like that may work if it had two notches. I have connected with another maker and will see what he can do but thank you for connecting and sharing the idea
Thank you for the pictures. I’m confident that I can complete this request. Is one week from today an acceptable delivery date?
I don’t believe the Unbuckleme would work for your application, it is designed to open (square) pushbutton buckles as opposed to side release buckles.
In order to have the model work consistently, I will need the exact distance between the release clasps (labeled in red) as well as an estimate for the length of exposed clasp (labeled in blue). Also if you could briefly describe your client’s level of strength/dexterity that would be helpful.
As for price, I would be willing to print it for free out of ABS plastic (which is what is typically used in the injection molded buckle due to its cost and flexibility as a plastic). I am in the US so shipping costs might be significant. Alternatively, I could 3D model and test the part and then upload the model online for you to print locally.
Looks like there is a good start on this. I have a question that may help clarify the design intent.
@kajal - is this intended to remain on the strap or be a separate aid?
One week will be wonderful. Since you are based in the US and mail is taking longer than usual, I am able to print it locally if you are able to send the file.
I have asked the school for the measurements and will get back to you as soon as I get them.
It can be a separate aid. I can always attach it to the walker later if the client would like afterwards. Thanks!
Ah missed your ability to get it printed @kajal, but let us know if things change.
I’m working on 2 ideas for the buckle opener. The first would require 2 hands to use. It would be operated by holding the clip from below and pressing the tool down on top of the clasp. It would also work as long as the clasp is supported from below like it would be on a table or the padded portion of the walker.
The other idea is more difficult to model and may result in a delivery delay. It would use a large knob that when twisted would constrict the clasps. This version could work one-handed as long as the buckle is pulled taught or supported from below.
Also, if there is still the opportunity, a 2D scan (like a standard printer scan) of the buckle with those 2 previously mentioned dimensions would really help out. If it’s too late, it’s not a big deal.
Thank you! A local high school has offered so we’re good to go
Hello, I have the dimensions. Sorry for the delay, just got them today. The width (red line) is 3.1 cm and the clip itself (blue line) is 1.2cm. My client’s strength is pretty good, it’s more of an awkwardness of undoing the buckle when she is buckled in the walker. The fine motor strength is difficult from that angle.
I’m open to trying the first solution if you think that would work.
Thank you again!
Apologies on the delay in response on my end - just wrapping up final exams for the spring term.
I’m still living in Surrey, BC and can help with 3D Printing and modifying dimensions of a 3D Print
Hope you all have a great weekend!
I have a working print that I will upload here. During the planning, I assumed I could find a buckle that I owned that was a similar size. I didn’t have one so I’ve only been able to do a few test runs with a borrowed buckle. It works great as long as the dimensions are accurate. I provided 2 sizes of openers to hedge my bets. If for some reason neither of them work, I could resize it same day if needed. Same goes for any other changes that may be needed.
As for printing instructions, I used ABS at a 0.2 mm layer height. Just about any standard plastic (PLA, PETG, etc.) should work. I would recommend using at least 3 perimeter layers for rigidity. Other than that, it is a fairly simple print and it prints on the flat side it is already oriented towards. I believe the standard STL would work best but there is also a smaller one in case it doesn’t provide enough tension.
Also while finishing up today I realized that it would not be difficult to modify the design and include hardware to make it adjustable/universal, so if that’s of interest to someone let me know.
For some reason I can’t upload the STL’s even know they are below the maximum file size. Here is a link to a Google Drive with the STL’s, reference material, and a brief video of how it works. https://drive.google.com/drive/folders/1AxwybdVP18XoDkK6No9Etk1m34608pQa?usp=sharing
Thank you so much!!! I will let you know how things go. I see there are 4 versions…is there one I should be going with?
Only the 2 STL files are needed for printing. I just kind of threw all of the resources in there arbitrarily.
Great, thank you!
Hello! We had the design printed and it is promising but it doesn’t push the buckle in enough…it seems we need an additional 3mm (please see attached pic). Is it possible to have the design modified? Thanks!