Library › Hardware › Rocker with tube and syringe rings on a pivot

rocker

rocker: Ø25 ring for the 25 × 150 test tube and Ø15.40 ring for the 5 mL glass barrel on one axis 18 above the Ø3 pivot bore, beam 216 long, lever pin (Ø3) 45 below and 35 beside the pivot at the end of an arm reaching to y −72.5, 2 × M3 tapped (Ø2.5) grubs

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

featurelever pin
value(35, −45), Ø3
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

From the full sheet

Rocker with tube and syringe rings on a pivot: every size, notes, mating features and sources. What rocker holds a test tube and a syringe on a pivot?