Broken Connector

Our GE refrigerator shelf broke a few weeks ago. The connector on the door side was really weak and poorly designed.

Here is the other side to show you what it looks like when it is not broken.

Unbroken Fixture

I decided to 3D print a replacement. The design is fairly simple so I used OpenSCAD.

difference() {
        translate([-15, 0,-5]) cube([30,0.6,65]);
        translate([-5,0,0]) cube([10,8,35]);
    translate([-4,-1,1]) cube([8,8,33]);

OpenSCAD_Render OpenSCAD_Render

The final design had a large void which I printed with supports. By leaving in the supports I was able to fill the void with epoxy to add strength to the design. I also included a large 0.6mm brim to increase the glue surface area.

Glued Repair

When gluing this in, I used the shelf to hold it in place and a layer of cellophane wrap to protect shelf from getting glue on it while it dried. The entire repair turned out great. Just needs a little cleaning of the leftover glue residue.

Fixed Shelf Fixed Shelf

MakerCrate Projects

Fri 05 March 2021 by Dr. Dirk Colbry

Safe Project

For Christmas my family got me a box full of MakerCrate projects from KiwiCo. There were five kits in the gift; one for me to work with each of my kids and one for myself. We had a lot of fun putting things together. The quality of the kits are …

read more

STL files to CNC

Sun 13 December 2020 by Dr. Dirk Colbry

I purchased a discount Workbench CNC machine. I've been a 3D printing person for a while and was suprised how hard it has been to get gcode for a CNC machine. I assumed that I could just upload something like an STL file but there are not a lot of …

read more


Fri 11 December 2020 by Dr. Dirk Colbry

Picture with Part number Picture with Part number

I am a big fan of OpenSCAD, it is my goto tool for making 3D designs. My kids have been getting into block coding like scratch and I thought, "wouldn't it be cool if there was a block code program that used OpenSCAD?" A quick google search showed me exactly …

read more

Air Conditioner CAM Replacement

Tue 25 August 2020 by Dr. Dirk Colbry

Picture with Part number

Our house has a 2-zone heating and air conditioning system. Today is the third time in the same number of years that one of the automated damper has broken. The problem seems to be the CAM that triggers the limit switches inside the motor is made of a flimsy plastic …

read more

Making a Landline Intercom

Sun 19 April 2020 by Dr. Dirk Colbry

Wire Diagram

We don't have a landline but over the years I have collected a bunch of phone wiring, sockets, etc. My spouse asked their social network and we got three landline phones and the kids and I put together a really simple intercom project with a 9 volt battery.

All we …

read more

Magical Staff

Sun 15 March 2020 by Dr. Dirk Colbry

Magical Staff Drawing

My eldest is a big Harry Potter Fan and made a few drawings of a Magical Staff they wanted to construct. I was really excited by the drawing. We purchased the crystal and staff online and sat down in front of OpenSCAD and came up with a fairly close design …

read more

JJRobots B-Robot

Sat 18 January 2020 by Dr. Dirk Colbry

Picture of JJRobots And kids

A few years ago I purchased a kit from JJRobots. The kit provides all non-plastic parts and then allows you to build a variety of robots. Up until now I only made the eggbot which tends to come out around Easter time, the kids love it.

Last week my niblets …

read more

Tronxy X1 Cura Settings

Sun 12 January 2020 by Dr. Dirk Colbry

Completed Benchy

My new Tronxy X1 has been a lot of fun to put together. The tricky part was finding the right setting for the slicer. Turns out it is not that difficult at all. I was able to download my favorite OpenSource slicer, CURA and needed to type in the specifications …

read more

Tronxy X1

Sat 11 January 2020 by Dr. Dirk Colbry

Brother and the TronXY X1

My "baby" brother is a new professor and designing an additive manufacturing course for his students. He found a fairly affordable (price of a typical textbook) 3D printer kit called a Tronxy X1 for his students to put together and take home.

To get ready, he and I purchased our …

read more