Wire Strain Relief for X-Axis Motor MK3S
I recently put together a MK3S kit and everything from components and packaging to instructions was first-class but one thing stood out to me. All the wires and so on are well-anchored and restrained except the ones to the X-axis motor which can flex right at the motor. Admittedly there is not a lot of action going on here but still I wanted it to be better.
I looked around for a CAD program to learn and settled on FreeCAD as being suited to my needs for mechanical parts and my way of thinking. I must say it has been surprisingly difficult for me to learn when I have always been very technical, but I am slowly becoming more comfortable with the basics, at least.
Here is the strain relief I designed for my printer:
And here it is printed:
I printed it in ABS and I had to make a setting change in PrusaSlicer to get crisp details in the top few layers because the part is so small. Go to Filament Settings > Cooling and click Enable Auto Cooling. This slows the printing and runs the fan to firm the plastic when it is being overlaid too quickly.
The original attachment:
I had two 3 x 40mm screws left in the spare hardware bag. Attach the part with one of the screws in the right hole as is. The screw for the left hole I shortened to exactly 37.5mm to allow it to seat without colliding with the mounting screw coming from the motor mounting. The strain relief installed:
I hope someone finds this useful.
Rob
RE: Wire Strain Relief for X-Axis Motor MK3S
I tried to attach the .stl file, it's not allowed. How can I share my design?
Rob
RE: Wire Strain Relief for X-Axis Motor MK3S
@rrelf51
Hi there
have you already found a solution if not you could send the file to me via mail pls [email protected]
RE: Wire Strain Relief for X-Axis Motor MK3S
@rrelf51
great thank you
RE: Wire Strain Relief for X-Axis Motor MK3S
I PM'd a mod many days ago asking how I can attach the .stl file, no reply even though he has been active. If there is somewhere that spells out all the rules of the forum I can't find it. Doesn't anyone know the answer to this?
Rob
RE: Wire Strain Relief for X-Axis Motor MK3S
@rrelf51
Best practice is to compress the file (*.zip) and then publish it as media data.
wbr, Karl
Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.
RE: Wire Strain Relief for X-Axis Motor MK3S
RE: Wire Strain Relief for X-Axis Motor MK3S
Hello, I thought about exactly the same thing the other day when i got my printer assembled.
The radius on the hinge is so that you can use the bottom side and a pin to mount a energy chain if that is you preference.(note its not a snap fit so you will need to use the bottom in that case).
Below is the STEP & STL files for the design and i printed it myself in PETG.
RE: Wire Strain Relief for X-Axis Motor MK3S
@rrelf51
Best practice is to compress the file (*.zip) and then publish it as media data.
wbr, Karl
Thanks very much. Here is my design, zipped.
Rob