770M+ BT30 Spindle Upgrade (M+ to MX)

Background

Upgrading your 770M+ or 1100M+ mill to a BT30 spindle is a great upgrade to add more tool holding strength. Additionally, for the 1100M+, this upgrade increases your top spindle speed up to 10,000 rpm.

Note: The M+ update is a requirement before completing the BT30 upgrade. However, these updates can be completed at the same time. For more information, see 1100M+ Servo Upgrade .

Tools

• 3 in. (7.6 cm) wooden block, 2

• 6 in. gear puller

• Flat-blade screwdriver

• Metric hex wrench set

• Open-ended wrenches:

  • 13 mm

  • 19 mm

  • 25 mm

• Phillips screwdriver

• Safety eye wear

• Simple Green (or similar mild degreaser)

• Torque wrench

• WD-40 (or similar water displacement oil)