Another Z-Axis End Stop For Geeetech A10

Once the power situation was improved to something more acceptable, I revisited the Z-axis end stop. Because the bare wire hack attached with tape was never going to cut it long term.

The first order of business was to transfer the circuit to a small circuit board instead of just wires hanging in the air. This little board was broken off from a larger prototype board, an easy task as the board was already perforated. The inexpensive switch I used (*) had two mounting holes that conveniently lined up to holes on the perforated prototype circuit board, so I soldered two pins at those locations as primary load bearers. I pushed the switch against those two pins as I soldered the three signal pins, hopefully this means any downward force from the homing procedure would be directed into the two mounting pins and not the three electrical pins.

Geeetech A10 Z axis end stop clip old and new

Geeetech A10 Z axis end stop clip CADOnce I had a small circuit board to hold the switch wired to the appropriate JST-XH (*) 3P (3-pin or 3-position) connector, I designed and 3D printed a small bracket to hold it to the machine. I saw no signs of how the original Z-axis may have been fastened, certainly no obvious holes to reuse. So I designed a clip-on bracket. The tool-less installation is a plus, but it came with the downside that it could not grip solidly enough to reliably hold a Z-axis position.

Right now it is sitting at the bottom against a cross beam, sitting at a height that I had guessed is relatively close to the original Z-axis end stop switch position. If that is too high, I will either have to print a shorter bracket or take a knife and trim some of the bottom off of this one. If it is too low, I can add something underneath this bracket to act as a spacer or print a taller bracket.


(*) Disclosure: As an Amazon Associate I earn from qualifying purchases.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s