Quoting Zach Hoeken : > sounds good... what do these standard terminal strips look like? see: Yours Adrian _______________________________________________ Developers mailing list Developers@reprap.orgby Adrian Bowyer - Developers
Quoting Zach Hoeken : > you may want to come up with a different name other than the Mk 2.1. > the 2.1 has a connotation of being only an incremental change that is > compatible with the previous version. if its not compatible with the > controller board, then its definitely not a v2. its fine that you're > using the mk2 as a stepping stone, but we dont want people getting >by Adrian Bowyer - Developers
Quoting Vik Olliver : > Yup. I'd like to think that the idea of printing polymer resist on a > copper PCB is a step in that direction. After all, that's what we're > going to try and do with Field's metal isn't it? I've had a bit of a success in the woods/fields metal area. Will try to blog it later. Yours Adrian _______________________________________________ Developers mailingby Adrian Bowyer - Developers
Quoting Vik Olliver : > I was wondering if it might be an idea to use standard terminal strip > instead of fancy 2-pin screw connectors? The stuff is cheap and widely > available, right? Just run solid copper from the board into one side of > a standard screw terminal strip, and people connect the power leads to > the other side. > > I know it's a bit bigger, but it can alsoby Adrian Bowyer - Developers
Quoting Forrest Higgs : > it won't work with the RepRap universal board and firmware and so on > and so forth. Sure it will. All that stuff needs is a heater to drive, a thermistor to tell it the temperature, and a drive motor to connect to its H bridge. You've got all those. Why don't you link it from the main Wiki extruder page as an alternative design? Yours Adrian ________by Adrian Bowyer - Developers
Oh dear! I hadn't even realised that Java3D doesn't run on Macs. OK - I'll put a bit on the web page. Yours Adrian Quoting webmonkees : > Oh, sweet torture! I see now why there was no install instructions for > Mac OS X.. > > No Java3d support. I got eclipse working, got the reprap program, but > then I couldn't find the java3d and no signs of any development. > (httpby Adrian Bowyer - Developers
Quoting Zach Hoeken : > i was looking through the extruder page trying to get up to speed on > it, and was examining the brass bearings that need to be made. most > people dont have access to a lathe (even afghan...) and i was > wondering if that could be replaced with skate bearing directly > attached to teh threaded rod with bolts. they're very nice / durable, > easily avaiby Adrian Bowyer - Developers
Quoting Simon McAuliffe : > If you go to about 20-30 jumpers, it alleviates the problem sufficiently > to go to a single layer PCB with fat tracks. So its entirely doable, > but I just think when you get to that number, you're just about as well > off using stripboard, so there's little point in making a PCB in the > first place. Oh, that many. OK - I agree. > Incidentally,by Adrian Bowyer - Developers
I have one of the Z-Corp ball bearings on my desk - they like to give them away as freebies. As Forrest says, the results aren't physically strong. Though you can improve that a lot by dunking the finished part in a bath of resin that then soaks into it. It shouldn't be too hard to add this as a RepRap option - the main machine stays the same. You just replace the extruder with an ink-jet heaby Adrian Bowyer - General
Quoting Simon McAuliffe : > I am assuming from this that it is not worth proceeding with the single > sided universal board because the tracks are two narrow (?) Perhaps not. Presumably if you increase the jumper count you quickly get to the point where there are no tracks running between pins, and suddenly they can be fat again. Yours Adrian ______________________________________by Adrian Bowyer - Developers
That would certainly work. We mustn't loose sight of the temporary nature of this - long-term this is a process we're hoping to supplant, not to employ. I think that circuit design for Mendel is going to present some interesting CAD issues... Yours Adrian Zach Hoeken wrote: > nice. > > heres a crazy idea that i had a while back but may have gotten lost in > the list traffby Adrian Bowyer - Developers
Actually Forrest, the control design we have is the simplest possible, in that it doesn't get any more complicated as the machine gets more complicated. A single controller is a dead end.by Adrian Bowyer - General
That seems to cover all the bases Zach - can you add it as a link from the Mendel-in-the-future page?by Adrian Bowyer - General
Zach Hoeken wrote: > those are definitely things i would love to see reprapped. i imagine > once we get a machine out there, there will be a second generation of > people who crop up to handle side projects like that. > > i really see the reprap project being roughly equivalent to the linux > kernel, allowing others to build on top of the technology and come up > with coolby Adrian Bowyer - Developers
Thanks Sebastien - can you put us down for a small sample of ABS - 1 Kg, say? Yours Adrian Quoting Sebastien Bailard : > Zach and I are also looking to go in on an order of ABS, and we'd > like to find > a better price than the $7.40/lb villageplastics.com quoted me. I've > submitted a quote request at New Image Plastics (plasticweldingrod.com.) > > Who would like someby Adrian Bowyer - Developers
Quoting Zach Hoeken : > well.. i'm still confused by that part, so i dont know how to separate > it. would you kindly fix that paragraph so that it tells you what to > do in the normal case, and move all the slave stuff to the bottom > modification header? Done. Yours Adrian _______________________________________________ Developers mailing list Develby Adrian Bowyer - Developers
Quoting Zach Hoeken : > it would be very trivial to make both pins solder to the copper side, > and then use a via to bring it back to the component side. via's are > easy to do, easy to understand, and very good soldering practice. Good idea - it'd only need to be done for the hard-to-solder parts, like the connectors. Yours Adrian ______________________________________________by Adrian Bowyer - Developers
Quoting Zach Hoeken : > Hey all, > > I just got my HDPE in the mail today!! They only had 20 lbs on stock, > so they just shipped me that. It came in 4 5lb rolls and looks REALLY > good. I really wish i would've built an extruder already... oh well, > i guess now i have a goal, right? > > Anyway, whoever wants some, email me your shipping address and how > much youby Adrian Bowyer - Developers
Quoting Zach Hoeken : > i've soldered up my 2nd board, this time it was a stepper controller > board. it went really well, and was much smoother than the comms > board... probably because of the experience i gained doing that. > anyway, i have a couple observations to make: > > 1. via's are easy and awesome. i was pseudo worried that things would > be really hard to solderby Adrian Bowyer - Developers
Quoting Zach Hoeken : > i think the comms board is a good candidate for making it one-sided. > i think it would be a good intro into doing stuff with kicad too. if > i get some time later tonight or this week, i think i'm going to give > it try. i got a few ideas that might make it easier to do which > would really rock. the easier it is to make, the better. > > plus, wiby Adrian Bowyer - Developers
I've just committed an update to the Java that speeds up as it deposits round sharp corners. It also does in-air movements above the build fast too. As usual, this means changing your reprap.properties file. Three additions: FastSpeed=200 Extruder1AngleSpeedLength=2.5 Extruder1AngleSpeedFactor=0.3 The first is the speed for in-air movements. The second is the distance in mm before and afby Adrian Bowyer - Developers
Quoting Sebastien Bailard : > I suppose it would work. No objections. We'd want to edit out the world > domination threads. > > I'd say we test the idea using the emails from the > "An alternative to timing belts?" > thread. > > Also, let's not start with the main deluge until everyone's ready for it; it > may be that one or two of us will want forwarning before receby Adrian Bowyer - Developers
I suppose that, if we just all go through our old sent-mail folders and forward everything that was to reprap@bath.ac.uk to the new forum making sure to keep the subject field as it was, it'll just make an unholy mess? Or might it sort it all out? Yours Adrian _______________________________________________ Deveby Adrian Bowyer - Developers
Quoting Forrest Higgs : > You just need to ream out the 3mm filament path a touch. Sounds like a job for a long-series 1/8" drill. Excellent. :-) Yours Adrian _______________________________________________ Developers mailing list Developers@reprap.orgby Adrian Bowyer - Developers
Quoting Forrest Higgs : > The stuff melts at 40-50 degrees C? What use is that going to be? > HDPE is coming out of the barrel of the Mk 2.1 at about 160 degrees . > Wouldn't the PEG just turn into a puddle when HDPE at that > temparature hit it? Also, I'd have to talk somebody into making it > into filament which means bulk orders. I've been through that > Chinese fiby Adrian Bowyer - Developers
Quoting Sebastien Bailard : > Will do. Which type? I would suggest the powder, since it will be easier to > blend with other materials in order to get into a filament form factor. > > There's > "PEG 1000 has a molecular weight of 1000. At room temperature the solid block > has a firm, waxy consistency. It melts around 98by Adrian Bowyer - Developers