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Summary of Contents for rc3Dprint ER-2
- Page 1 E R - 2 P R I N T I N G A N D A S S E M B L Y I N S T R U C T I O N B O O K...
- Page 2 T H A N K Y O U Thank you for downloading this ER-2. These models take many hours of work to make available to you so please don’t share the STL files with others. Send them to www.rc3print.com where they can download the models themselves. This enables me to continue to develop new models to make them available for download.
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Page 3: Parts List
P A R T S L I S T R E Q U I R E D EDF ChangeSun 90mm and Motor (TURNIGY SK3 FANDRIVE - 3659-1900KV (90MM EDF - or similar). 6S 6 - Channel radio kit minimum. 8 x 9g Micro Servo 2 x Metal Servoless Gear Retracts - Non steerable version (Link) Pultruded carbon tubes: 8mm, 6mm, 4mm and 2mm. - Page 4 I N C L U D E D S T L . F I L E S F U S E L A G E W I N G...
- Page 5 E M P E N N A G E G E A R P A R T S...
- Page 6 C A R B O N T U B E S...
- Page 7 S P E E D B R A K E P A R T S...
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Page 8: Specifications
S P E C I F I C A T I O N S Wing Span & Area 2020mm - 39.33dm Flying Weight (2200mAh 4S): 2000g 2018 Wing Loading 50.9 g/dm 16.6 oz/sq.ft Wing Cube Loading Channels 6 Channel Minimum Centre of Gravity 1309.16 10 cm Behind of Leading Edge... - Page 9 P R I N T I N G P R O F I L E S A handful of parts are printed in PLA and TPU, these can be printed using standard settings. L W - P L A P R O F I L E This model is designed to be printed in LW-PLA.
- Page 10 With regular PLA a common problem is under extrusion at layer change - to fix this change the setting extra prime amount in Cura to +1-3mm. With LW-PLA it is recommended to switch retractions OFF since trying to retract the foaming filament can cause problems.
- Page 11 F U S E L A G E Assemble the fuselage from the back forwards. Here is a recommended sequence: 1. Fuselage 7 and 8 glued together. With each Fuselage piece added you should run the piano wire elevator and rudder push rods through the Bowden (which may need opening up with a craft knife) to make sure it is lined up correctly.
- Page 12 9. The wings are assembled around 3 CF Spars. When gluing the pieces together it is advisable to build around these spars as it ensures correct alignment. Often the ends of the 3D printed spar holes will require a little cleaning up with a craft knife.
- Page 13 • The CAD files for Wing 2 are included in the download. This is so that you have the platform to design your own wing pods. The ER-2 was used as a flying laboratory with all kinds of sensors housed here. I look forward to seeing what people add!
- Page 14 C U R A C O M P O N E N T P L A C E M E N T F U S E L A G E 1...
- Page 15 F U S E L A G E 2 F U S E L A G E 3 F U S E L A G E 4 Set the infill to 5%...
- Page 16 F U S E L A G E 5 F U S E L A G E 6 F U S E L A G E 7 F U S E L A G E 7 H A T C H...
- Page 17 F U S E L A G E 8 E D F H A T C H W I N G 1 W I N G 2...
- Page 18 W I N G 3 W I N G 4 W I N G 5 W I N G 6 A...
- Page 19 W I N G 6 B I N N E R F L A P O U T E R F L A P I N N E R A I L E R O N...
- Page 20 O U T E R A I L E R O N V E R T I C A L S T A B H O R I Z O N T A L S T A B...
- Page 21 R U D D E R E L E V A T O R H O R I Z O N T A L S T A B E N D V E R T I C A L S T A B E N D...
- Page 22 C A N O P Y 1 C A N O P Y 2 S P E E D B R A K E 1 S P E E D B R A K E 2...
- Page 23 S P E E D B R A K E S T R E N G T H E N E R 1 Print in PLA/ABS/PETG S P E E D B R A K E S T R E N G T H E N E R 2 Print in PLA/ABS/PETG B O T T O M G E A R L I N K A G E Infill 30% Print in PLA/ABS/PETG...
- Page 24 A F T G E A R L E G Infill 30% Print in PLA/ABS/PETG F W D G E A R L E G Infill 30% Print in PLA/ABS/PETG S P R I N G ( T P U )
- Page 25 F W D T Y R E ( T P U ) F W D W H E E L ( T P U ) A F T T Y R E ( T P U ) A F T W H E E L ( T P U )
- Page 26 E L E V A T O R C O N T R O L H O R N Infill 50% C O N T R O L L I N K A G E Infill 50%...
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