reprap

Kossel Build update: First print!

The 1 meter tall Kossel printed it's first print, a step calibration cube. The bed is 10 inch mirror glass from Joanns. I followed my original plan for the most part except for two things. One, I am using a Smoothieboard 5x instead of a 4x , which doesn't change anything because I am not using the extra stepper driver for anything. Two, I have yet to add a third triangle on the bottom for more rigidity and storage for the electronics under the bed. After the video, I did more wire management and moved the Smoothie under the print bed...

Kossel Build update: Printed tnuts

For the assembly of the Kossel's frame I am using printed t-nuts that hold a #6 nut in the slot and prevent it from spinning freely. This saves money and is strong enough because the only force the plastic takes is of the bolt twisting. There is no chance of the bolt pulling out because the steel has metal to metal contact with the aluminum and wont come out even if the plastic fails. I use pliers to gently press the nut into the plastic. The t-nuts I customized for Misumi 2020 had a tight fit and one would crack every once and a while but the Openbuilds were perfect...

Larger Kossel Mini Build

Kossel corner
I am building a Larger Kossel Mini 3d printer that will have a ~250mm round build. This will be my second printer build, the first being a Prusa i2. The frame will be built out of 20mm square t-slot aluminum extrusions, the side extrusions will be 360mm and the towers 1000mm. I may use a small amount of the tower as legs to keep an atx power supply under the printer. The side extrusions will be Misumi 2020 and the towers 2020 V-slot from OpenBuilds along with Solid V Wheels and aluminum spaces for the carriages...