RB1 Riser Base

The RB1 Riser Base is designed to place the LM1 optic mount or a short LM2 without flanged base centerline at 4.00 in. (101.6 mm)

The mounting plate is designed to accommodate the 1.0 in. (25.4 mm) and 25 mm spacing common to most optical tables

The RB1 is lubricated with Krytox LVP to prevent outgassing.

An excenter fixing enables easy moving of the rod and refixing without further movement.

The RB1 can be ordered with a 1/4 - 20 or M6 attachment screw for English or metric optic mounts.


• Optical centerline with LM1 optic mount: 4.00 in. (101.6 mm)
• X-Translation: ±0.625 in. (16 mm)
• Y-Translation: ±0.625 in. (16 mm)
• Θ-Rotation: 360°
• Mounting screw: 1/4 - 20 or M6
• Easy moving and refixing