ESPER - Nerf Elastic Homemade

CHANGE NOTE 3/1/21 - Added updated eBrake

CHANGE NOTE 2/25/21 - Widened spacer tubing clearance in E-Pull

CHANGE NOTE 02/03/21 - Esper foregrip now rides on the outside of the SCAR barrel,
barrel now retained by a printed collet and moved forward a little,
ramrod can now be made from a cut-down talon claw ramrod (removing 0.4" from the front then re-tapering), eRambase mounts the ramrod 1/4" further back

CHANGE NOTE 11/24/19 - Updated barrel retention method in eDartjam.

CHANGE NOTE 8/7/19 - Replacing the 3-part mag-release setup with a 2-part setup from the Talon Claw.

CHANGE NOTE 7/8/19 - Uploaded current STEP file

CHANGE NOTE 2/15/19 - Tguard7 replaces Eguard and installs in EGrip using two 4-40 screws.

CHANGE NOTE 2/8/19 - Strengthened EndLoop

CHANGE NOTE 1/30/19 - Nibbled the front off EndCap

CHANGE NOTE 1/26/19 - Uploaded current STEP file

CHANGE NOTE 01/01/19 - Small changes to eMuzzle

Item is 18 inches in length and not intended for use by children under the age of 14.

ESPER is a Mag-Fed Top-Slide-Prime Homemade Blaster design that uses elastic cords as a replacement for traditional compression (and extension) springs. They drive a plunger with a catch surface at its tail end. The mag release and sear/trigger assemblies also use elastic cord for return.

ASSEMBLY INSTRUCTIONS
http://captainslug.com/nerf/EsperAssembly1.pdf

Color/part configurator
http://captainslug.com/nerf/esper/

WARNING: This blaster MAY NOT BE SAFE FOR INDOOR PLAY. Even with the weakest string setting of 20-inches this blaster will easily shoot faster than 100+ fps. So keep this in mind as to where and when this blaster is used.

All of the parts can be printed with infill as low as 20% in PLA, but I would recommend printing in layers of 300 Micron or smaller.

Hardware kits
https://outofdarts.com/collections/captain-slug
https://silverfoxindustries.shop/collections/hardware