GM17 stepper hack

HydraRaptor

It has very little torque at that speed, but it gets multiplied by the gear ratio of course. I have thought for some time that the best thing to drive an extruder with would be a small stepper with a gearbox.

DC 67

Copper Plating Wire Glue

RepRap Blog

Of course, this could be easily remedied by altering the settings. I suggested previously that it might be possible to create PCB''s by copper plating wire glue to create a low resistance section of track.

Trending Sources

Mac Goes RepRap (one day.)

RepRap Blog

Of course, if Apple do that, they''ll have to GPL all its designs. Mac|Life magazine recently approached Mark Frauenfelder and others to envision a future product from Apple. Mark''s entry was based on RepRap (left). More details here.

The RepRap Clock

RepRap Blog

So, of course, we made one. We needed a clock in the RepRap Lab at Bath University. It''s shown mounted on the MDF build platform from ARNIE - the very first prototype RepRap that we made.

Moving towards production

RepRap Blog

The G-Code file generated to build all of them is also a single file of course.) The Java driver software now handles multiple part printing reasonably well, though wrinkles remain.

Reprapable Solar Power

RepRap Blog

We''ve discussed reprapping solar panels for a long time, and - of course - our semi-conductor printing capability isn''t quite up to that yet. But it should be possible to reprap a small-scale solar array like a miniature version of the industrial one at Daggett above.

Bowden extruder success!!

RepRap Blog

Of course hysteresis goes up as we increase the sprung length (our test used a 1 meter length to be sure). Finally. Four months ago I bet Adrian a Mars Bar that we could get this working, and now finally here it is  the Bowden extruder.

Motoring on with the A3977

HydraRaptor

current can be achieved (but it gets much hotter of course) and it maintains microstepping accuracy at higher step rates than it does on 12V.

No compromise extruder

HydraRaptor

On reflection it was silly to expect to be able to mill deep pockets with a 1mm bit and of course it is much faster to rough it with a bigger bit. Of course it only failed after I had fully assembled it and run some heat cycles so I had to strip it down again to fix it.

Hello World

RepRap Blog

Of course, all of this is conjecture and could be complete rubbish:D Rhys My name is Rhys Jones, you may have seen my name mentioned on the blog before, as I previously worked on the first reprapped circuit as part of my undergraduate degree.

Acceleration Code Released

RepRap Blog

Unfortunately the new firmware is now too big to fit in the Arduino ATMEGA 168 controllers (though the old version that does is still available, of course). There is a new release of the Java host software and the Sanguino firmware that support accelerations and decelerations during building.

Mixed decay, mixed blessing

HydraRaptor

times greater of course. Having set the correct off time to suit my motor I can now micro step it with equal spaced steps, but only if I disable the mixed decay mode. When the chopper switches off it can do it two ways. It can turn on both low side transistors.

HydraRaptor's second child

HydraRaptor

Of course the bigger the part is, the more chance something will go wrong, so by weight and time it is much worse. Back in March I had a visit from Marcin Jakubowski , the founder of Open Source Ecology.

Thoughts on rafts

HydraRaptor

Other people have reported good results with Acrylic sheets and of course an ABS sheet will work. Erik asked me for details of how I do the rafts so here are my thoughts. I am not totally happy with the way they are currently and keep fiddling about with them.

Thermoplast Extruder Version 2.0 Released

RepRap Blog

On my home Darwin I build with that at carriage speeds of 3000 mm per minute, which is fast , and - of course, unlike ABS - it doesn''t distort as it cools. The Thermoplast Extruder Version 2.0 - the new pinch-wheel design - has been released.

Simply better

HydraRaptor

I glued the thermistor in with Cerastil, but I expect it could just be wrapped in tin foil and jammed in like the ceramic resistor, taking care to insulate the wires of course. Of course I haven''t built anything yet with any of these designs, so caveat emptor.

more WeDge

RepRap Blog

Its been a bit mad getting all the admin out of the way this end, but finally I get to post what Ive been tinkering with recently: my take on the Wedge design exercise (from a previous post, here ). Viks been testing out the concept in the real world and it looks like things might check out!

Stepper pinch-wheel extruder building

RepRap Blog

Microstepping may solve that, of course RepRap stepper extruder working from Adrian Bowyer on Vimeo. Here''s the prototype stepper pinch-wheel extruder building the coat hook. As Nophead has always rightly maintained, good control of the polymer flow gives the best quality results.

RP Pinch-wheel Extruder II

RepRap Blog

Of course, the faster we extrude the faster we can build things, and - what''s more - the less significant dwells and melt ooze become. It does turn out to be possible to knurl a stepper shaft (see blog immediately below). As you can see, I had to take the rotor out to do it.

Wedgewood Update - Z Axis Begins

RepRap Blog

Next weekend is a 2 day chainsaw course, so I''m working on Wedgewood whenever I can. I''ve been away for much of the weekend, and crook yesterday so I''ve not had much time to work on RepRap.

Support for overhangs

RepRap Blog

Of course two extruders would allow - for example - a friable paste to be used as a support (my current favourite: cornflour mixed with a gel of PVA glue and methanol - to be blogged when I have some results.).

Pull Yourself Together, Bot!

RepRap Blog

Of course they will also easily work as the diagonal ties they were designed to be. Of course, all this was just a random idea in my head until a couple days ago when I sat down and actually tried to do it. Warning: this is gonna be a long post.

QCad 52

Pinch Wheel Extruder Is Alive

RepRap Blog

for very loose definitions of science Of course, it wasn''t without its mishaps. After I got the Pinch Wheel extruder working reliably, the obvious next step was to actually print something with it, right? I spent the past 2 days doing just that.

4 Dimensional RepRap

RepRap Blog

and of course you can move with it turned off by omitting the W value altogether. No - we''re not doing an open-source time machine. When we get round to that we will do it last year. This is a more prosaic idea prompted by G Codes and the fact that several people are doing stepper-motor-driven extruders or ones using Zach''s neat shaft encoder. I hope I haven''t stolen it from Nophead and recycled it as my own idea.

SourceForge Community Choice Awards

RepRap Blog

If you''d like RepRap to win the "Project most likely to change the way we do everything" category, click on the link/image above, and - of course - tell all your friends Voting among the finalists has started!

Announcing MakerBot Industries

RepRap Blog

Of course, if you''d like to pre-order a CupCake CNC , its $750 for *everything* you need to build and start printing. If you''ve been wondering why I''ve been so quiet lately, then wonder no more! For the past couple of months, I''ve been working on getting a RepRap based company off the ground with the help of my friends Bre Pettis and Adam Mayer. The name of the company is MakerBot Industries and we make robots that make things.

Debian and the Freerunner

Talpadk's Blog

Of course I had bought two Kingston SD-C02G 2GB microSD cards for the Neo 1973 which fails with I/O errors on the Freerunner typically me… However there is a fix which works for me, well except that the Debian installer at that exact point in time was broken. Some time ago I bought a Freerunner as an upgrade for my Neo 1973 , I was going to wait for the GTA03 but as you all know it got delayed indefinitely. Why Debian. Q) Why Debian ?

Accelerating RepRap

RepRap Blog

This is not how GCodes conventionally work, of course, so you can turn this behaviour off by commenting out a line in the firmware that says #define ACCELERATION_ON ) Of course you can have the machine move at constant speed as well if you want. Accelerating RepRap from Adrian Bowyer on Vimeo. The experimental four-dimensional GCode interpreter is now five-dimensional. Four dimensions are so three weeks ago. It has an extra DDA variable that is the feedrate.

Richards SolidWorks Blog: Pooch Boutique Station. - Chuck's Blog

Richard's SolidWorks Blog

» April 03, 2009.   She smiled and of course she already knew that. April 03, 2009 at 01:07 AM | Permalink. Posted by: debt help | September 16, 2009 at 05:04 PM. Richards SolidWorks Blog. Richard Williams. About Me. Contact Me. Categories. Analysis.

Richards SolidWorks Blog: New Adventure - Typepad

Richard's SolidWorks Blog

» February 23, 2009. The two years of training helped me to save a life or two, which made it all worthwhile of course. I didn’t even ask to be considered for this new experience and of course there is no money that is going to be exchanged for what I will be doing shortly. Wow, now I will even have to watch my verbalization skills and of course my language too. Can I teach a basic course okay? February 23, 2009 at 09:54 PM in Teaching | Permalink.

Richards SolidWorks Blog: Pooch Boutique Station. - Typepad

Richard's SolidWorks Blog

» March 20, 2009.   She smiled and of course she already knew that. March 20, 2009 at 05:13 PM | Permalink. Richards SolidWorks Blog. Richard Williams. About Me. Contact Me. Categories. Analysis. Current Affairs. Designing without limits. Ecology, Environment, Mother Earth. Educating Yourself. Engineering Related Items. Reviews and Reports. Schools and Education. Science Projects. Teaching. The Engineering Realm and Reality. Weblinks. Eng-Tips. SolidMentor.

Richards SolidWorks Blog: A Much Deeper Appreciation Now

Richard's SolidWorks Blog

New Adventure » January 03, 2009. While you are waiting for things to start there are plenty of sales on beer, drinks, foods and of course brochures and DVD’s and tee shirts. Of course I knew every song he sang and so did all the young ladies that were sitting all around us. January 03, 2009 at 07:36 PM in The Engineering Realm and Reality | Permalink. Posted by: Las Vegas Hotel | November 01, 2009 at 09:03 AM. Richards SolidWorks Blog. Richard Williams.

RepRap: Blog: Big RepRap Refereed Journal Article

RepRap Blog

It is, of course, a scholarly engineering article intended for academics. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Thursday, April 14, 2011. Big RepRap Refereed Journal Article. We have just published a paper in the journal Robotica about how RepRap started, its development, and how it has got to where it is now. But it is - we hope - also a good read for everyone.

RepRap: Blog: Join us at 2014 Midwest RepRap Festival (MRRF.

RepRap Blog

3D PRINTING CHALLENGES See some of the most difficult prints take shape over the course of the weekend, and some fun printing challenges too, like the hand-fed extruder print challenge. RepRap: Blog.

RepRap: Blog: Rewriting history

RepRap Blog

Erik, of course, has done a superb job of estimating the World population of RepRaps together with RepRap-derived machines like MakerBots and 3D-Systems/BfBs. I, of course, replied that - like the other 7 billion of you - I didnt have a clue. Summer 2009 - RepRap Mendel introduced. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Monday, April 18, 2011. Rewriting history.

RepRap: Blog: RS Components distributing RepRaps

RepRap Blog

For more details see RSs blog post here , and, of course, their catalogue here. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Monday, December 02, 2013. RS Components distributing RepRaps.

RepRap: Blog: Reprap Prusa Iteration 2 Build Event in Cologne.

RepRap Blog

Signup by email, kliment.yanev @ gmail.com Included in the course price are all the parts as well as some plastic print material. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Sunday, November 27, 2011.

RepRap: Blog: Quality - Open Source for the Win (Part Deux)

RepRap Blog

It took a while under those conditions, of course - 5 hours. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Tuesday, November 29, 2011. Quality - Open Source for the Win (Part Deux).

RepRap: Blog: Print any colour you like.

RepRap Blog

Of course the full design will be on the wiki as soon as we can get organized. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer. Tuesday, April 10, 2012. Print any colour you like. without added stripes.

RepRap: Blog: A Tipping Point of Print Quality (Open Source for the.

RepRap Blog

Of course we have always had some people who had epic build quality for years now ( See Nophead ), the big change is that the barriers to entry have dropped significantly: Thanks the the new Volumetric Skeinforge (Skeinforge 41), and the fork of Skeinforge called SFact by Action68 (Ahmet Cem TURAN ) even makes the slicing of the models straight forward. RepRap: Blog. Blog for the RepRap project at www.reprap.org - a project to create an open-source self-copying 3D printer.

RepRap: Blog: Announcing AMRI: Advanced Manufacturing.

RepRap Blog

As part of the mission of AMRI Rice, the Fellows will also take part in a 4-day Advances in Tissue Engineering Short Course where they will receive a 32-hr crash-course in all the very latest in tissue engineering research from thought leaders from around the world. RepRap: Blog.

RepRap: Blog: Surface-Oriented CAD, Math, & Telescopes

RepRap Blog

Some people may be most interested in the final section, in which I discuss my attempts to 3D print a telescope (designed with surfcad, of course) and the problems Im running into. RepRap: Blog.

RepRap: Blog: UK RepRap Master Class

RepRap Blog

For a fee of £575, participants will be provided with all of the hardware and software, along with expert guidance, over the course of the weekend, to build and commission their RepRap 3D printer. RepRap: Blog.