Kwickset Hall/Closet Doorknob core replacement w/out lock

A replacement core for an older style unknown model of Kwickset doorknobs.
In the contest Replacement parts
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updated September 21, 2023

Description

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Background:

My office door has a rather old Kwickset doorknob which recently broke. I immediately opened it up and found the plastic core had cracked so I ran to fusion 360 and managed to recreate the original core. 

I beefed up the walls for increased strength and use calipers to get the measurements as close as possible. Why spend $20 on a new doorknob set when I can fix the one I have.

When printing I printed in flat side down with standard tree supports in Bambu Studios. The holes will come out a bit oval but everything should fit regardless. 

The pictures shown are printed in PLA. To not waste more plastic I will be using that original print until it breaks. I would recommend you printing this is ASA or ABS.

Usage:

This uses the original hardware except for the pin which I had to cut. So I replaced the pin with an M2 machine screw. Unfortunately for me I only had a 20mm and had to tape the head in place. But 22-25mm should be perfect depending on the diameter of your doors hole. 

I also reused the original plate that goes against the lock. 

Hardware:

  • 1x 22-25mm M2 Machine screw or equivalent pin.

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The author marked this model as their own original creation.

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