The whole point of having, for example, known "standard" distances between axes is to be able to exchange key parts of design A with design B, should you find that A is not up to the task. "Interoperativity". As a user, I do not really care about who or what process generates that, but I do benefit from having a variety of choices without having to reprint or refurbish the whole gizmo. On the oby Lanthan - Developers
Sort of promotional slant and all fuzzy and big makers brotherhood don't you find? I'd like to see more of the mediocre / half cooked quality of certain OH products being sold addressed. I have had mixed experiences: some excellent products, with outstanding workmanship, and some rushed, half-finished, half-thought, half-assed stuff. And in between, very little signalling, no reference points,by Lanthan - Developers
In summary, you are mostly for "keeping it organic" and hoping that the mass effect will automagically sort out the chaff from the valuable improvements. This virtuous process may or may not happen. Actually, unfortunately, things do not seem to going this way in western societies. But yeah, it is much in the spirit of the project. And reprap might be an exception. You're right, so more unsounby Lanthan - General
To add to what Buback says, we might aim to develop a form with point scales for the submitted models Maybe adapting some of these criteria for evaluation might be useful: and since it is reprap, adding/substituting special criteria for DIY-ability (at the core of "self-reproductibility"), fully open-source being a fundamental precondition. ---------------------- Factor Criteriaby Lanthan - General
In the absence of an established procedure to decide about the rules of inclusion (and other major stuff), there is a high risk of this happening again and again. Burnout, ad personam attacks (and people are taking things personally) etc. So, to reformulate a question I have been quietly asking in another thread in the librarians forum: What procedure will we, the people of reprap, agree on toby Lanthan - General
Did you go with the old "belt and 4 corner rods" z ?by Lanthan - General
Yes, autumn weather awakens the bards of decay. Speaking of rolling up the sleeves, I am already volunteerning some of my time to set up (and hopefully, in due time analyze the data) a survey. Some talk and my proposition in the developers forum, under an "incentives" post by Buback. The hope is to extrat fresh information about current users preoccupations and the most promising directions. Preby Lanthan - Administration, Announcements, Policy
I have found that the parallell wiring of steppers is a bit unstable (at least with the pololus and the sy42sth47-1684), the z motor bearing the most weight (the one over the x motor) tends to lose steps & stall. Parallell wiring would work decently if both motors had the same load. I solved this by wiring the motors in series. The series wiring is briefly described at the wiki page as an alby Lanthan - Stepper Motors, Servo Motors, DC Motors
Thank you for the insights. I undestand the difference in meaning between "out of date" and "obsolete". That Selis Mendel manual isn't bad, in need of a refresh indeed. But towards which successor? I'd bet on some Prusa & Selis Mashup. But which one? Big changes, the printer models in first page multiply like Orcytolagus cuniculi today! self-reproduction demonstrated.. Gone is the referenceby Lanthan - Administration, Announcements, Policy
Too fast Too hot (in bridges) poorly tuned PWOT in solid infill? ... just guessing... but dimension still OK to put in the bolts 'n bearings.by Lanthan - General Mendel Topics
1.5KUSD for the unassembled kit, how clever! "The Buildatron 2 3D Replicator case is an engineering breakthrough that puts our enclosure design in a class of its own"by Lanthan - General
You shouldn't have any problems with this kind of setup. 5 or 6 years old AMD computer, Ubuntu 11.10, 2 instances of Pronterface. Two printers simultaneously, connected through a single powered USB hub, the one with an Arduino Mega 1260 shows as /dev/TTYUSB0 (or USB1) and the one with an Arduino Mega 2560 shows as /dev/TTYACM0, connection speed at 115Kbps.by Lanthan - General
Pardon my impertinence, if any. Just wondering what rules, if any, determine the choice of printers featured on the wiki's first page. I can undestand the Huxley (Adrian's), the Mendel (massification), but then, for example, why the MendelMax and not the Prism? Why should the Selis Mendel described as mostly obsolete when there are branches very much alive and kicking, like Pen State's hybrby Lanthan - Administration, Announcements, Policy
Plywood is cheap anyway ;-) The X motor (right side) is near an opening (at least in the original design), I put a 12V computer fan over it. The Y motor (on the X carriage) is smaller and trickier to cool. Might be good to have provisions for vents, and even better, a 40 mm fan . The "all cupcake" looks ok, I wouldn't go with the plastruder mk5 which is obsolete, but the extruder base is OK forby Lanthan - General
Buback Wrote: ------------------------------------------------------- > I'm not that interested in 1.4 unless you want to > use it as a gauge for different design choices by > the respective companies. Otherwise, that question > sounds a bit too market-researchy to me. just my > two cents I'm not into marketing... all those emerging/struggling/just created companies are an intereby Lanthan - Developers
Do you have access to plywood? it may be a better choice for some parts, especially those that touch the motors. The X motor (I used a SY42SHT47-1206A I think, use something with more power) tends to overheat (or lose steps if you reduce current) so it will need some additional cooling. There's at least two or three layered wade's extruders on Thingiverse ready for lasercut (including mine: theby Lanthan - General
So you're pretty much set up. Have a look at the few frame updates on thingiverse, some seemed interesting, but I do not think they were cut by more than 1 or 2 persons. Otherwise the revised, updated frames from the Makerbot repository will do. Have a look at the improvements that were made to get the Z axis guided on smooth rods (prior to thing-o-matic), there is at least one design thought foby Lanthan - General
richrap Wrote: ------------------------------------------------------- > @Lanthan - I bet your a programmer Not at all, alas. I'd love to, I get bored to near death in a corner of a normative, uncreative and strategically blocked domain. I do reprap to check if I'm still alive. > That's a really good start, It gets interesting at > section 3, and 5.1 made me smile and 5.4 made me >by Lanthan - Developers
Been there, done that. Routed mine in 6.7mm plywood. Printer rods and bronze bushings. Files are on thingiverse. Advice is: don't Why? 100x100mm print area, non-upgradeable. And I'm not sure the kits with belts and pulleys are still available at Makerbot Otherwise works trustfully with modern electronics and a good homegrown extruder. Advice: wait for the imminent release of Nophead'sby Lanthan - General
Draft for a reprap survey ========================= Request for comments submitted to the reprap form by lanthan lanthanid at gmail dot com Rationale: This survey should provide developers and fellow reprappers with fresh information on the current user base, practice and expectations. This might help deciding on priorities setting about design, research, initiatives and reachout. Privacy:by Lanthan - Developers
Thx for the information! Yes I definitely love the colors of farbshadery, but they sell by the meter (or 100m), while I am buying by the spool I ordered one from reprapsource. Next to test will be GRRF (when they have the color I want...) Meanwhile, using the equivalent diameter calculation somewhat improved the printability of the esun pla. The bolt tends to catch the filament perpendicular tby Lanthan - Developers
@Richrap: Yes indeed I do not feel limited in upgradeability with the current Mendel frame. Especially if the addons are "clamp on" rather than "rod thru". (noticed a a trend among the finer kits being proposed to revert to the old clamping system that provides a larger area of contact) Most of the "improve precision" can be proposed as addons. I see the same ecology perpetuating in the mendelby Lanthan - Developers
Yes this still happens frequently, even with the latest version. I found that generating stls with more finely tesselated circles ($fn in openscad) may improve the detection in some cases.by Lanthan - Firmware - experimental, borrowed, and future
adding an m5 nut around the motor shaft (main hole drilled out to 5mm, and one side drilled and tapped to M2) might help too. There's at least one such pulley design on Thingiverse.by Lanthan - Mechanics
Traumflug Wrote: ------------------------------------------------------- > Definitely an interesting topic. To my > observation, much of RepRap is money driven and > all but enhancement of details is done with the > ability to sell the design in mind. Currently, > this mostly means complete machines. That's why > nobody is sitting down and doing fundamental > research, for exby Lanthan - Developers
Last year Makerbot sent me some red ABS that was a nightmare to print - still don't know why, probably too floppy for the kind of bolt I am using. Ultimachine always sent nice samples - Looking inside Urope because of the pre-eminence of custom duties. Right now I am looking at reprapsource's "extruding in germany" rolls. I have not yet ordered from them. Might be time to try.by Lanthan - Developers
OK I have a couple of emergencies in the upcoming days but I'll be back in a week or so with a draft of a survey. As for the survey tool, I have a preference for Limesurvey and might have to prepare a fresh setup (the one I use currently has institutional branding) In the mean time, let us flesh out together what do we want to know about our fellow reprappers. Keeping it at a couple of pagesby Lanthan - Developers
Buback Wrote: ------------------------------------------------------- > Given the exacting standards we need to get good > prints, I don't hold out much hope that something > like filabot will produce anything close to > usable. And here we are mass-sourcing PLA from China like almost everything else while this was supposed to promote local production and recycling (which, you are rby Lanthan - Developers
I think it is normal to see differentiation and speciation at this stage. People (maybe the majority on the market) who are going to print mostly mashups of the octocat and/or some of their idols or anatomical parts may not care so much about accuracy as about cost. A very simplified and inexpensive design won't hurt. Other people, maybe nourishing the hope of printing homegrown mechanical partsby Lanthan - Developers
The situation with the providers seems excessively fluid. I ordered from source A some PLA some months ago, it was just gorgeous in color and a genuine pleasure to print. I ordered from the same provider this year, quality, color and even the resistance of the resulting printed parts took a serious plunge. I didn't send the stuff back, I took the time to test it, but source A has lost me as a cusby Lanthan - Developers