The stock 58mm Umikot works well with the Cafelat Robot - all except the stand. The Robot's deep basket requires longer needles than a typical portafilter basket. This deeper stand will allow you to store the Umikot with those longer needles.
Other tips for using Umikot with the Robot:
- Use 105mm needles, such as the ‘10pcs 0.4mm 105mm’ option here: https://www.aliexpress.us/item/3256805858852242.html
- Cut 5 of your 10 needles to a total length of ~93-95mm (63-65mm needle + 30mm handle)
- Cut the remaining 5 needles to a total length of 85mm (55mm needle + 30mm handle)
- Use this stand with the “Umikot58 - Base V2 30mm NoTab.stl" Base. The ‘short’ and ‘long’ tab options don't fit well on the Robot portafilter.
- For the best fit, scale all Umikot parts (Umikot58 Mech V2, Spin Ring, NoTab base, and this stand) to 94% on the X and Y axis. Leave Z axis scaling unchanged. Stock scaling fit OK but 94% is a more snug fit to the basket diameter.
- Screws and needles will have slightly tighter tolerances this way. I widened the needle holes slightly to make installation easier with a 1/16"/1.6mm drill bit.
madmaxx890
