EC 135 T3

prusaprinters

<p>1:18 scale EC 135 electric r/c helicopter</p><p>Build thread on RC Groups&nbsp;</p><p><a href="https://www.rcgroups.com/forums/showthread.php?3835813-EC135-Scratch-Build">https://www.rcgroups.com/forums/showthread.php?3835813-EC135-Scratch-Build</a></p><p><br>Note that this is a work in progress - comments welcome!</p><p>Modified on 31/07/21 to update stl files for horizontal stab and tail, added gcode files.</p><p>Modified on 22/05/21 to update stl files for the tail boom, added gcode files.</p><p>Modified on 15/05/2021 to include 3 directories for window stl files. &nbsp;I have printed the 1.1mm windows with a 0.6mm nozzle and the 1.5mm windows with a 0.8mm nozzle in PVB. &nbsp;The third directory has 5mm thick plugs for anyone who wants to try vacuum forming windows as another method.</p><p>All parts except the windows were printed in Polymaker Polymax or Prusament PC Blend.</p><p>A standard 0.4mm nozzle could probably be used for most things.<br>0.6mm nozzle was used for all windows, fuselage parts, tail boom, FC and motor mounts<br>0.4mm nozzle was used for the tail, fan, horizontal stab, landing skids<br>0.25mm nozzle was used for the ARB, dfc link, and inner swash ring</p><p>All holes are present in the STLs, but it is a good idea to use a drill bit on them before tapping.</p><p><strong>Items required</strong><br>Drill bits: 1.2mm for 1.6mm bolts and 1.6mm for 2mm bolts pre tap, 2mm for untapped, 3mm for main motor bolt holes.<br>1.6 and 2mm taps<br>1.6 x 6mm bolts are used for the ARB and servos (8)<br>2 x 10mm for skid/frame attachment (4)<br>2 x 6mm for the motor mount (4)<br>2 x 5mm for the tail motor (4)<br>6mm dia magnets (4)<br>684ZZ bearing (1)<br>Tail motor: BetaFPV 1404 3800kV<br>Main motor: T-Motor 4006 380kV<br>Rotor head: Microheli 4 blade head for Blade 230s<br>Swash: modified OMP M2<br>The main shaft, collar, servo linkage rods, servos all come from an OMP M2<br>I used a Heliflight3D flight controller, described here:<br>https://www.rcgroups.com/forums/showthread.php?3804877-Putting-a-HF3D-FBL-on-the-OMP-M2<br>Note that the front right servo direction is reversed compared to that installed on an OMP M2, so a FC will be required where this can be done.</p>