Folding Stock adaptor for Junxing Drakon or FMA Supersonic crossbows

thingiverse

<h3>New Slimmer Version uploaded, print positions changed after experiencing layer adhesion issues with Devil Design PLA.</h3> I was inspired by: https://www.thingiverse.com/thing:3084027 and works great with my 8 bolt quiver https://www.thingiverse.com/thing:5806091. It does however make the righthand arrows a little difficult to remove. <b>Items Required:</b> <blockquote> <ul> <li>1x M5 Nut & Bolt 60mm (needs to be cut to size 55mm and threads smoothed preferably to allow better sliding, do it with a file except the top 8 mm) for fixing the trigger guard to the male adapter</p> <li>1x M5 Bolt > 30 - 48mm max (for fixing the buttstock to the female adapter - optional)</li> <li>12mm OD Spring X 20mm L (0.8mm wire)</li> <li>1x M5 washer to protect the locking element from the spring (optional)</li> <li>2x M4 tapered screws 8mm - 10mm works too but it stiks out a little (optional)</li> </ul> </blockquote> To easy fit the M5 nut in the adapter, heat it with a soldering iron. <b>V30</b> - tested and improved the design all over - M4 bolt for Buttstock Added an alternative (better) stock fastening using a central bolt, a nut hole so it sits flush to the top surface and a horizontal stabilizer for the stock shaft to prevent rotation. <b>V35</b> - Improved print position for strenght, increased m5 nut hole and switched to M5 bolt for buttstock. If using v35 models print positions you will have the maximum strenght for the models. <b>NOTE</b>: This is not military grade, the connection wobbles a little, but in a crossbow is not as important as a gun. Improved this a lot in v30 by having tighter tolerances. The lateral screw for the stock, if needed, use it on the outside (not as in the photos) as your fingers will suffer otherwise when folding. <b>Final version, everything is tested and works OK!</b>