RatRig Bed Support Arms (for 4.0 and 4.1 only)

These are our machined bed arms for the RatRig VCore-4 Only.    We have 3.0 and 3.1 arms as well but in a separate listing. They are machined out of 6061 Aluminum and are based on the Kelvin style kinematics.   They are designed to work with our Mini Oldhams that are available on our site - but are not required and will work with the RatRig Wobblers provided with the kit.   As of 3/24/2025, we have added 4 thru holes to support either wobblers or oldhams. The Bed Arms are now IDEX/VAOC Compatible as of 12/13/2024.  Click Here for the updated printed parts for VAOC. You can use the nuts provided in the kit from Ratrig. NOTE: You will lose 5 mm if you use both bed spacers and will have to adjust your config appropriately, or, you can remove one spacer from the arm with the pin mount and you should be spot on.  In addition, it is recommended to get our Mini Oldhams as they are smaller and more compact than the stock ones.  Using the stock oldhams will cost you Z height. The machined bed arms will require a modified wiper.  2 options are available. Option 1 from printables. Option 2 from printables. Installation:  Right front arm get's the chamfered magnet.  Left front arm and rear arm get's a flat magnet.  A/B Nuts are attached to the bottom of the oldhams, and the oldhams and nuts go below the arms.