I love my Cafelat Robot, but I like to be able to push down on the arms from above, and then I can't see the pressure gauge.
There are other solutions I've seen that involve mounting the gauge on the body of the robot, but I wasn't crazy about how that changed how the pressure gauge tube fed into the body, so I came up with this.
Requires a 1" round mirror; I used this one:
https://www.amazon.com/dp/B014Q7AVKG?ref=ppx_yo2ov_dt_b_fed_asin_title
The two pieces need to be glued together after printing.
The author marked this model as their own original creation.