RepRap STEWIE SIMPSON: 3-Arm 6-DOF Nicholas Seward 2019-10-18 | I think I am digging this one a little more than STEWIE. youtu.be/uigFpaW90H4 Maybe someone can help me come up with a name in the comments.Edit: This version has now taken on the name STEWIE.
Levitate Book With 1 Piece Of Paper Nicholas Seward 2021-09-01 | Please try this on your own and post your attempt with the tag #PaperPedestalChallengeI had no clue this project would have so many levels. I wrote a script for a longer video but I didn't think anyone would like to watch a 30 plus minute video on all my iterations and fails.I am very sorry I can't spell. I watched the video so many times before uploading and still didn't catch such an obvious error. Guess I need to make a video about making an app that can spell check a video because I sure can't be trusted. :-)
Introduction: Nicholas Seward Nicholas Seward 2021-04-21 | The machine in the video is a RepRap STEWIE SIMPSON. STEWIE is a 6DOF version of GUS SIMPSON. I reused this machine for this little clip because I could make it look like a cube from a certain angle. I don't really have any plans to build it.youtu.be/FKsGTfTdtigyoutu.be/af7XkgxzmXE
RepRap Halo Modeling Session Nicholas Seward 2021-04-15 | I am going to give live modeling a try. I suspect it will make me more productive. Can't promise it will be interesting. :-)This is a project to make a 3D printer that can print all the way around itself. I have been calling it Homer because it can print the whole donut. My friend @KoalDesigns has gotten interested and is working on a version also. He is a very talented designer. We have collaborated on some of the basic concepts but we are probably too picky to join our designs into one. In any case, I have stolen the name "HALO" that he suggested.youtube.com/c/KoalDesigns
MiniTrip/Random Update Nicholas Seward 2021-04-07 | Whoops! Didn't mean to do a live stream. I usually make these kind of things unlisted but I think this is significant of an update to warrant keeping it public.
[Untrimmed/Unedited] RepRap MonoRail Q&A Nicholas Seward 2021-03-18 | I will be answering questions about the MonoRail and the DuoRail!
RepRap MonoRail Q&A Nicholas Seward 2021-03-18 | I answered all the questions you could ever have about the MonoRail!!!! I also share my favorite sandwich!0:00 Start2:10 Scalable3:24 Drive Options5:35 What Angles?6:40 Firmware7:32 Second Rail Support10:00 Build Volume12:58 Curved Rails14:13 Simpsons14:35 Applications15:25 Will Work17:00 Kinematics18:15 How to design rigid 3D parts21:40 Finite Element Analysis23:50 Friction and Torque on Rail24:03 Printing Below Bed24:50 I use AutoDesk Inventor24:55 HELIOS Teaser26:36 Vertical Rail (Monopole)28:40 Flying Monorail29:10 Inventor isn't free...use Fusion36030:24 Wall/Table Mounting30:48 Patent32:37 Space (Use Simpson!)34:30 MiniTrip36:05 Accuracy Precision37:18 DuoRail isn't More Rigid39:16 LiveChat1:38:33 Tour
PI DAY SHIRTS 2021 Nicholas Seward 2021-03-12 | #pidayFollow me as I walk you through how I made this year's Pi Day Shirts.0:00:00 - Welcome0:00:07 - Why make shirts?0:01:16 - Best Joke Ever (past and present)0:01:32 - Design0:02:46 - Coding0:03:43 - Animation0:04:11 - Random Computer Science Thoughts0:05:26 - Vinyl Cutting0:06:22 - Weeding (not tweening)0:07:10 - Vinyl Transfer0:09:52 - Printing0:10:54 - Heat Treat0:11:25 - DIY Tools0:12:14 - Gravity
RepRap DuoRail (More of a Shelbyville Idea) - Two Rail Tripteron Nicholas Seward 2021-03-07 | A teaser for a printer I am building.This is a variant of the Tripteron. Here is proof that a Tripteron can print. youtu.be/yhyctj8eXPs from my friend Apsu
CRAZY GEARS Nicholas Seward 2021-03-03 | This was my first animation in Blender. I thought it was too beautiful to not share. I am making a video about how I made these among other crazy gears. I will also share the code. Stay tuned.
Cycloidal Modified Herringbone Rack & Pinion Nicholas Seward 2021-02-28 | This was too beautiful not to share. I hope you enjoy watching gears mesh as much as I do!thingiverse.com/thing:4778391
RepRap Monorail (Single Rail Tripteron) Nicholas Seward 2021-02-26 | I had a crazy idea to build a tripteron with only one rail. The idea looks promising and possibly even practical.
TriScarDiff Prototype Movement Nicholas Seward 2021-02-03 | A small update on how TriScarDiff is doing. Basically, the platform is about as buggy as one would expect. All is not lost. There are probably a few lessons we can learn from this prototype before we upgrade it.
HEXASCARDIFF Nicholas Seward 2021-01-08 | The HexaScarDif is a differentially driven, screw actuated, 6DOF robot platform. It came from some discussion with Apsu (youtube.com/c/Propter).LISA Simpson (youtube.com/watch?v=EMiPkpDFzuQ)Sextupteron (youtube.com/watch?v=2kXdsU2bBp0)Hexapteron (youtube.com/watch?v=r_CeC4caQLM)HELIOS (youtube.com/watch?v=9_8dOvU_q6U)Apsu's Channel (youtube.com/c/Propter)5D Slicer (dotxcontrol.com/products/5-axis-slicer)
RepRap STEWIE SIMPSON: The 6DOF Simpson Nicholas Seward 2019-10-16 | What do you get when cross a Stewart Platform with a SIMPSON? Answer: STEWIE. The arms can be actuated in any number of different ways from GUS Simpson arms to hydraulic pistons to what is pictured here. The goal of this animation is to get a basic feel for the kinematics, stability of motion, sizes, etc. I have been contemplating building a Sextupteron but I may be building this first. I am a sucker for all this symmetry with no linear rails in sight.
HighSchoolHack Nicholas Seward 2019-04-13 | This is the inaugural HighSchoolHack at ASMSA. Teams from across Arkansas are virtually battling it out. Only the leet will survive.
Idea for Infinite Z on 3D Printer Nicholas Seward 2019-04-05 | Let me know in the comments or on the forum what you think. Do you have a better idea? Do you see why my idea will fail? Do you have ideas for improvements?forum.makerforums.info/t/infinite-z-printer-brainstorming/74930/28
RepRap WHEELIOS Nicholas Seward 2019-04-02 | This is an infinite printer that can print right on a table based off of RepRap HELIOS.
Rolling RepRap HELIOS Prototype Nicholas Seward 2019-02-20 | Using a rolling SCARA to get an infinite print volume.
RepRap HELIOS and Tablebot at MRRF2018 Nicholas Seward 2018-03-24 | Cato and Worthy show off their hard work at the Midwest RepRap Festival.
Harmonic Drive Preview Nicholas Seward 2018-01-08 | This is a work in progress. I just want to share it with someone because I am so excited. I have a ton of applications for this cheap joint. I want to make a 4axis robot arm capable of 3D printing but I need to do some benchmarking on the drive to see if I can get the results I need.The ratio is 231:1.The most expensive part is the $7 6814 bearing which isn't even in the mockup.All printed parts are PLA.
RepRap HELIOS Version 2 Update Nicholas Seward 2017-12-18 | We are making strong progress on the SCARA that prints right on the table.
Incremental Bed Leveling with RepRap HELIOS Nicholas Seward 2017-04-23 | This is a proof of concept run using Incremental Bed Leveling on the RepRap HELIOS prototype. The concept is to probe as you need where you need. Every touch point does a live update of the leveling solution.Development on Google+ plus.google.com/collection/IFEMGE
Experiments in Accelerometer Probing (RepRap Helios) Nicholas Seward 2017-04-22 | For those that like endstops, this machine will be able to figure out where all the hard stops are and where the bed is with one lonely accelerometer. This will truly allow one touch printing. The only other thing I might be missing is a filament feed sensor. I think I will leave it off just to give the early adopters something to do.This could also apply to many Cartesian printers. For instance you could replace a Prusa's x stops, z stops, and depth probe.
ASMSAs Jumbo Printers First Print Nicholas Seward 2017-04-19 | This printer can print 24x24x36" and is 36x36x48". I need to put a touch probe on it but other than I love it.
1-Arm Scara Test Nicholas Seward 2017-04-19 | This is a project one of my student did to help get ready for the RepRap HELIOS build. Note the reused RepRap Wally arms.
RepRap HELIOS Sequential Printing Nicholas Seward 2017-04-17 | I essentially exported the gcode from Cura and hit print. I love love love this printer. No muss. No fuss.
RepRap HELIOS (Firmware Progress) Nicholas Seward 2017-04-16 | I have added arm mode switching and singularity avoidance. I still have to optimize G0 moves and bed leveling.
Introducing RepRap Helios (First Print) Nicholas Seward 2017-04-14 | Development on Google+ plus.google.com/collection/IFEMGEDevelopment on RepRap Forumhttp://forums.reprap.org/read.php?185,760198
RepRap HELIOS (1-Arm SCARA Mockup) Nicholas Seward 2017-04-02 | This 3D printer is a work in progress. I am currently printing parts and have all the components.This printer can print items over 24 inches long if shaped correctly while being able to fit in a 10inch cube. My plan is to print directly on a tape covered table. I think it will be possible for it to print all of its own parts at once.I am working on a name. Feel free to drop some suggestions. Current names: Copernicus, Helios, Homer, ScARMa, Tyr (Tyr is a 1 handed god.), One Armed Bandit, Lucy, Omicron
Hexa Motion Study Nicholas Seward 2016-11-30 | I have never seen a parallel robot with this exact configuration. However, I just found 3 examples so nothing new here. I feel that this 6-PUS robot would be an effective 6DOF "3D" printer. The fact that it is already used is a good sign.youtu.be/T2L704bDMBQ youtu.be/egrS4-Muivcyoutu.be/FltBh-g35ZQ
Sextupteron Motion Study (Parallel Rails) Nicholas Seward 2016-11-30 | Some call this a Hexapteron. I am not proposing that this is practical. I wanted to see if I could get a decent amount of movement in each DOF without a linkage collision. All the rotational DOF's are about +/- 60 degrees with this configuration. In some ways, this will be more practical than the orthogonal configuration. youtu.be/2kXdsU2bBp0
GroceryListManager Demo Nicholas Seward 2016-10-22 | This is a demo of an application made for a graduate class in Software Development Process at Georgia Tech.Team Members:Octavian BlagaLuke DenisonJason MaliaNicholas Seward
ASMSA Reverse Double Four Bar Lift Mockup Nicholas Seward 2016-10-09 | Model and animation by Brock Davis.
Foreground Removal Nicholas Seward 2015-07-20 | This is an early attempt to remove foreground objects from a video
Tree Video Texture Nicholas Seward 2015-06-28 | This was an assignment for a computational photography class. I took 10 seconds of video and then found the optimal loop. I overlapped the loop by 1 second and had it do a fade in to the next loop around. This was a visible improvement over a hard restart of the loop. Next step is to do a graph cut. Graph cuts would allow the loop to switch over individual pixels to the new loop when it will be least visible.
Wren Seward Sleeping Nicholas Seward 2015-06-28 | This was for a computational photography class. The assignment was to take a video clip and programmatically find an optimal loop.Wren is 7 months old in the video. Isn't she cute? She is even cuter when she is awake.
Pinhole Camera Results Nicholas Seward 2015-05-28 | This was a project for CS6475 Computational Photography at GaTech.
Wall Delta Nicholas Seward 2015-04-16 | This is a visual aid for a forum discussion. This is just to demostrate that delta towers can be placed in arbitrary locations. You will have to work a little harder to keep a bot like this rigid enough to be useful.
Linear Slider with No Linear Guides Nicholas Seward 2015-02-12 | This is a rendering of a design first seen in "How to Draw a Straight Line" by A. B. Kempe. It was published in 1877. This is a quick mockup of how a demo made of 2x4s will look. I also want to play with snap together3D printed joints for a 3D printer. My complaint, as many others will be, is that the number of joints can lead to a lot of slop. I think I can design a printed version that will use no bolts or bearing while also maintaining minimal slop. (Time will tell.)http://www.gutenberg.org/files/25155/25155-pdf.pdf
ASMSA BEST Robotics - Sketch to CAD to Robot Loop Nicholas Seward 2014-11-01 | Sketch to CAD to Robot Loop
Eugene the PVC Robot Nicholas Seward 2014-10-14 | ASMSA's first working prototype for this year's BEST Robotics competition. 18 seconds to score a "large windmill blade". Eugene is made almost completely from PVC.
Cross Screw Drive Nicholas Seward 2014-06-23 | Both Tekma3D and New Matter both came out with printers that use crossed splines to drive the x and y of their printers. They both are in the process of trying to acquire a patent on the technology. Being the open source hippie that I am, here is a system that is functionally the same but should give a wide berth to the patents.To be clear, I don't think this kind of system is very good. I think it is fun to watch.If the system has opposing racks as shown, one screw should be left handed and the other should be right handed. If all the racks face the same way, like the MOD-T, then you can use two left handed screws. The system is driven just like a CoreXY system.kickstarter.com/projects/449224349/tekma3d-tm1-3d-printerindiegogo.com/projects/new-matter-mod-t-a-3d-printer-for-everyone
