This is the 3lb Undercutter Assembly found in our NightWing 3lb Undercutter Kit and Undercutter Bundle. You can use it in any sort of horizontal or vertical spinning weapon you want!
• This weapon system has been refined over years of combat and it has proven itself to be extremely robust without breaking the bank.
• The 3/4" weapon shaft is contained by a high performance roller bearing that dissipates the impact forces over a large area.
• A Gr8 hex bolt transmits torque and holds the stack together via a threaded bore in the 42T Timing Pulley.
Includes:
- 1x 5/16 x 2.00" Gr8 Bolt
- 4x 6-32 x 3/8" Button Head Screws
- 1x Lasered steel Hex Star
- 1x Aluminum Disc Hub
- 1x Aluminum Tube - 0.75 x 1.213in
- 1x UHMW Thin Spacer
- 1x SCE128 3/4" High Performance Roller Bearing
- 1x UHMW Bearing Block
- 4x Phillips #6x0.75" Thread Forming Screws (for mounting the UHMW Bearing Block to your baseplate)
- 1x UHMW Thick Spacer
- 1x 42T-5/16-24 Pulley with threaded bore custom-made for this assembly
- 1x Flat Washer
- 1x FR1810zz 5/16" Flanged Bearing
- 1x 5/64" Hex Key
* Requires disc / bar of your choice.
Weight of full Assembly: 133g (4.69oz)
Intended to pair with FingerTech 3lb Undercutter Electronics. If you'd like to use both of these sets to build your own custom undercutter design, just use 3.18mm (1/8") top and bottom plates, with 30.35mm (1-3/16") tall walls. Space the motor axis 46.13mm (1.82in) from the weapon axis. Operates on 3S standard, or 4S if you are planning to use a smaller diameter weapon disc.
Recommended discs for a 3lb Undercutter: FingerTech 10inch x 0.125in AR500 FTR Disc for more momentum and big hits, or FingerTech 10inch x 3mm Titanium FTR Disc for faster spinup and more control. Paired with a 3S lipoly battery this weapon will spin up to 8k RPM. That's 240mph tip speed!
For more information, download the assembly instructions for the NightWing Kit.
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