Building

2015-10-22T00:34:43Z

SeeShell: Updated my build and also to include pictures

This page will collect any photos, plans, and instructions for do-it-yourselfers. Efforts with enough documentation will be provided their own pages.

# [[Mulletron's Build]]
# Kurt Zeller (@zellerium) and Brian Kraft from Cal Poly are starting a build as well, using a constant cross-section cavity containing a polymer dielectric.<ref>[https://forum.nasaspaceflight.com/index.php?topic=36313.msg1368153#msg1368153 Forum post by @zellerium]</ref>
# @DIYFan - TBD
# [[@Notsosureofit is planning testing with a Gunn diode]].<ref>[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1336344#msg1336344 Forum post by @Notsosureofit]</ref>
# [[TheTraveller]]
# [[Iulian Berca|@Iulian Berca]]<ref>[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1371164#msg1371164 Forum post by @Iulian Berca]</ref> - Fabricated a drive in May 2015 and was posting videos at [http://www.masinaelectrica.com/emdrive-independent-test/ his website]. In [https://www.youtube.com/watch?v=Rbf7735o3hQ Test 3] he reported a force measurement toward "the small end" and later a smaller measurement in the [https://www.youtube.com/watch?v=KAMttfMC8PI reverse orientation in test 3.1]. As of 5/21/15 the magnitude and significance of these measurements were discussed on the [http://forum.nasaspaceflight.com/index.php?topic=36313.msg1377695#msg1377695 NSF forum]. A few weeks after that he posted that he had to suspend work as he took a new job in another country.<ref>[http://www.masinaelectrica.com/emdrive-independent-test/ Post on Iulian's blog]</ref>
# [[Warp-Shell|@SeeShells]] Is building a Frustum with ceramic plates covered in O2 free copper. Plates are a fine control non-active tuning, resonance locking with captured end plates, addressing thermal expansion issues and cavity warping.<ref>[http://s1039.photobucket.com/user/shells2bells2002/library/CE%20Electromagnetic%20Reaction%20Thruster?sort=6&page=1]</ref>
# @R. W. Keyes / Andromeda Research - high power, 1-20KW magnetron, superconductor Magnesium diboride on silicon carbide, to start summer 2015
# [[hackaday.io project|@movax (Paul Kocyla) and Jo Hinchliffe]]<ref>[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1372073#msg1372073 Forum post by Hackaday.io]</ref> - Building the original 2.45 GHz thruster according to the Chinese paper and their own 24 GHz design simultaneously, with estimated completion date of July 2015. See [https://hackaday.io/project/5596-em-drive Hackaday project] for more details, as well as [http://n-o-d-e.net/post/119343131451/building-a-diy-emdrive an interview with Paul].
# Dave (@rmfwguy) now plans to use a 900W magnetron as an RF source; copper mesh for the frustum body, and no dielectric in the frustum.<ref>[http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=37642.0;attach=978733 @rfmwguy's updated test paper on NasaSpaceFlight forum, now includes bill of materials] </ref>. Starting in July 2015, this will be live-streamed on [http://www.ustream.tv/channel/em-drive-experiment Ustream].<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1390220#msg1390220 Post by @rfmwguy]</ref>
# @DrBagelBites posted on reddit that he was planning on starting a build <ref>[https://www.reddit.com/r/EmDrive/comments/38q7m9/going_to_build_an_emdrive_update/ Post by @DrBagelBites on reddit]</ref> and provided a PDF <ref>[https://drive.google.com/file/d/0BzttGV8gaI61MGIwZUF6clh5TjA/view?pli=1 PDF by Ian Lasky on Google Drive]</ref>
# @kml Testing a non-tapered rectangular waveguide with various dielectrics inserted at one end.<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1380174#msg1380174 post by @kml]</ref>
# @PaulTheSwag posted on reddit that he is starting a build <ref>[https://www.reddit.com/r/EmDrive/comments/3cwgpg/building_an_emdrive_update/ Post on reddit by @PaulTheSwag]</ref> and provided some images. <ref>[http://imgur.com/gallery/KRhlp/new Posted on imgur by @PaulTheSwag]</ref>
# @SullyEmDrive also posted on reddit that they are beginning a build <ref>[https://www.reddit.com/r/EmDrive/comments/3gihk9/emdrive_builder/ Post on reddit by @SullyEmDrive</ref> and provided more details on a website. <ref>[https://sullyemdrive.wordpress.com @SullyEmDrive's wordpress website]</ref>
# @Conundrum mentioned that he is also working on a 24 GHz system using parts salvaged from commercial 24GHz intruder alarms

If anyone is missing, please add them here.

There's also a forum focused on builders, getting started [http://emdrive.io/community/ here]<ref>[http://forum.nasaspaceflight.com/index.php?topic=38203.msg1418111#msg1418111 post by @rfmwguy</ref>

== Modelling ==
@phaseshift has built a SketchUp model<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1380107#msg1380107 post by @phaseshift]</ref> ([[File:EM_Thruster.skp]]) of a frustum based on the estimated Shawyer Flight Thruster dimensions.

@TheTraveller constructed an EMDrive Calculator spreadsheet to model thrust given various design parameters<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1382349#msg1382349 Forum post by @TheTraveller]</ref>, which was built with some input from Roger Shawyer directly. See [[Useful EMDrive Design and Test Tools]] for more details.

== References ==
<references />

EM Drive - User contributions [en]

Building