The Ø37 mm adapter for SESTO SENSO 2 (PrimaLuceLab, SKU: SESTOSENSO-AD37II ) extends the compatibility of the second generation of the SESTO SENSO drive, enabling its installation on extractors with a thick main shaft with a diameter of 37 mm . The ring replaces the factory Ø25 mm clamp and - like it - uses a patented self-centering system, guaranteeing a secure grip without the use of pressure screws and without the risk of slippage during stepper motor operation.
• allows you to mount SESTO SENSO 2 on extractors with a 37 mm shaft (larger R&P, some Crayfords and commercial SCT/RC)
• CNC machined aluminum body, hard anodized in red PL LuceLab
• precise oval clamping slot with two M5 Allen screws – stable and axial grip
• engraved raster facilitates a firm grip with gloves and precise tightening
• plug-and-play installation – just unscrew the factory Ø25 ring, put on Ø37 and screw SESTO SENSO 2 back on
• ring adapter Ø37 mm for SESTO SENSO 2
• 2 × M5 × 20 screw (stainless steel) for clamp
• 4mm Allen key
• Inner diameter: 37 mm
• Outer diameter: 55 mm
• ring width: 14 mm
• material: 6061-T6 aluminum, hard anodized
• weight: 38 g
• compatibility: only with SESTO SENSO 2 drive (not suitable for generation 1)
• manufacturer: PrimaLuceLab – Italy
If your focuser has an unusual, thick Ø37 mm shaft , this adapter will allow you to take full advantage of the precision and automation of SESTO SENSO 2 without mechanical modifications. Simply replace the ring - and the drive will be ready to work with the new focuser.

