Anyone have a picture of this aquarium tubing? IS it hose clamped?by Simba - General
I haven't found anything that works either. Though there are far far far worse chemicals than acetone. I wouldn't call the ambulance if I spill some acetone or similar laquer on my skin, I worry a little more about DMSO, THF, Dichloromethane, etc. In theory, if there is water absorption in the polymer, none of these would work consistently anyway. Maybe a water based chemical with mild heat?by Simba - General
What is the galvanic process that's reducing ions to a solid?by Simba - General
VDX Wrote: ------------------------------------------------------- > ... you can add metal by galvanic processes - e.g. > in a hypocritocal solvent, where the laser spot > adds the energy/condition to start the chemical > process of reducing metal ions to solid metal Okay, I see how it is. Especially for you, I designed the ambient Fresnel lens laser. IT columnates and focuses ambby Simba - General
CPS Wrote: ------------------------------------------------------- > Yea i don't really like the marker idea either for > various reasons > > YAY good news =) how long till you think it will > be done (i can etch and assemble, any1 tried using > silver or graphene ink for pcb's yet?) Aww why no > heatbed + thermistors 2 important things that's > needed on every awesome 3dby Simba - Developers
> So what? Who cares how long it takes if it is high > res. Its not like you stand there the entire time. > You have a robot making parts and if you want 200 > parts a day that take twelve hours each you build > 10o robots not try and make one do 100 times the > work. > For the above, it is critical to the OP. He wants to print part after part after part to make a frame.by Simba - Developers
Here is a pipe I made, about 4" long. And at 100% infill with a whopping 1.0 mm diameter nozzle, this took 4 hours.by Simba - Developers
Wow prepare for some long prints. And I LOVE the framing idea. A lot. Reminds me of when i was a kid in preschool and we had these giant 12" x12" blocks you could make 3d buildings out of. As for the idea, yes the frame will be rigid, not a chance it will slump at 50%, and you should never really go larger than 50% infill unless the wall is <2mm thick. At 5mm, you might use a 1 mm perimetby Simba - Developers
Hi CPS and others Great discussion. I'm starting to dislike the marker idea a bit now. This is totally incidental, but we are having a 10-stepper controller ramps being made now. I'll let you know when it is done, but it is only for steppers + endstops. You'd have to add an expansion or we have to make revisions to include the standard pieces like heater fets and thermistors.by Simba - Developers
I don't know of a stock printer that does 300C that is commercialized yet (other than mine, of course, not released yet : ( ) There are several very recently released 300C hot ends. search "all metal" hot end. I think prusa & co. made one too after christmas. What fancy materials are you printing? Nylon at polycarbonate?by Simba - General
So, 6 wires mean hybrid or unipolar. If it is hybrid, it will work in a 4 wire mode, but possible loose some strength (i'm not sure) I am sure you can be able to get away with pings 2-5 only, but at half or weaker strength.by Simba - General
I think we've left the realm of the home user, entirely. Argon, lasers, ebeams...this stuff belongs in space. Can we simplify it? Save for the ignorant asphixiating (Argon) getting sick (chronic metal poisoning) being blinded (lasers) dying of cancer (metal powder particles) or acute sickness from vapors...I don't like it at all, sorry. I just can't see myself working it it. I really likeby Simba - General
Guys (and gals) I very strongly recommend eliminating the temperature monitor in sprinter (use at own risk). I never have these problems since, and more importantly, it does bounce around forever trying to hit 1 degree C accuracy, which the system isnt even capable of as the internal and external error may be around 5 degC practically. At the 6.5 hour mark, you may have a dense infill region,by Simba - Reprappers
Hi Jeremy, Instead of kickstarter and 0.25mm for a first pass, I highly recommend trying a traditional build, like prusa, printbot, ultimaker, etc. If it were me, i'd make an ultimaker. The issue with kickstarter is, poor prior support and you dont ever know when you will get it. Gigabot was overloaded with request after only 10 or 20 units and can't promise anything probably into 2014. 0.25by Simba - Reprappers
Traumflug Wrote: <<< +1 macegr Wrote: <<<< +1 Tekwizard <<<< +10000 Ohioplastics, I think you've put someone on a pedastol. People are people. I wouldn't be surprised if you told me the owner of every growingly famous/successful company was an arrogant ****. It kinda concides hand in hand with making waves in the first place. Personally, I got into thisby Simba - General
Polygonhell Wrote: ------------------------------------------------------- > You put people on a pedestal you'll be > disappointed. > You're not going to agree with everyone, and your > not going to get along with everyone. > Just because people don't agree with your ideals > doesn't make them or for that matter you bad. +1. I don't understand a lot of the views here. Its greby Simba - General
Eye candy/loose screenshots of early developmentby Simba - Developers
We are in the final stages of developing "Ramps10" an open source multi-configurable stepper controller shield based on the Ramps 1.4 design. It can control 10 motors up to 2A each, or 5 motors for 4A each, etc. We do not know how it will be received by the DIY (reprap, cnczone, and robotics communities), but we think there is a need here. Personally, I can't believe people still use EMC and pby Simba - Developers
Just a news blurb. We have good preliminary results with full control of the 3D printer, now we want to finalize the product for full release. We are working with the creator of the first android Bluetooth reprap controller, Phillip, who did most of this initial work, and now hiring outsourced help. We believe in open source for some aspects of 3D printers, and this is the perfect example. Yoby Simba - Developers
REPRAP SQUAD Wrote: ------------------------------------------------------- > The only problem I have is with the larger > displays which is what I would need 8" + . They > seem over priced. I could buy and modify a nice > tablet for that price. The smaller stuff isn't too > bad. Its good for developers that want an easy > platform or people that are learning. For those > priby Simba - Developers
$$$$$$$$$$$$$$$$ whats up with that. Its not worth more than $10by Simba - Developers
TopherMan Wrote: ------------------------------------------------------- > My PCB design is here, based on a similar design > by bobc. The idea is that surface-mount pins on > the bottom go into the Due, and surface-mount > headers go on top into the RAMPS. Since the pins > and headers are surface-mount, and therefore not > connected, I could decide what connects to what. > Mby Simba - Developers
This is why I eliminated the "wait for temperature" hold procedure where it looks for the temperature to sit within a 1 degree of 3 degree C window before starting. Saves me hours a day on starts. It is possible your XYZ is jammed against the endstop. Move them to the center manually. After that check for short circuits.by Simba - General
Much respect for anyone who can create such a device, let alone that kind of software for it. I somehow doubt it is home made. Probably home made by someone else - an open cad? BTW, I think this is the indegogo DLP printer that failed ahead of formlabs AND B9creator. Sad really. A technology ahead of its time...only a year ago.by Simba - General
In fact you can import the mesh STL into meshlab, reconstruct it, and export it as a DAE. That can recover edges and faces for manipulation in sketchup, but it is best used for basic surfaces (noting too complex or freeform, will likely have holes in the mesh). Once in sketchup you can really simplify the faces. It's a pain, really. at the least I'd like to be able to transfer the polymesh sby Simba - General
TopherMan Wrote: ------------------------------------------------------- > Hey all, > > While I'm patiently awaiting my conversion board > so I can plug RAMPS into my new Due, I'm trying to > get some firmware ready. I'm really a big fan of > the setup and structure of Smoothie, and I think > the way the mbed libraries are set up it should be > possible to port it over foby Simba - Developers
I'm with the other guys - its on the backburners, I've only showed that you couldn't melt aluminum to itself because of high thermal conductivity issues.by Simba - General
CPS Wrote: ------------------------------------------------------- > Xeed 3d printer uses a 0.2mm nozzle: > > > What do you suggest? "€5,460" But like I said, going from 0.35 mm to 0.1 mm isn't going to be impossible, its a matter of incremental improvements. a 200 micron layer thickness though, is 4 human hairs thick. Color mixing can not be done here. Practically how about thby Simba - Developers
At this point, the bearings aren't the problem anymore. The slider rod is... Decent quality shafting is $3/ft... And linear bearings only cost $0.75 in bulk. The fact that UHMW is cheaper is a good DIY thing, but to scale up someone needs to cut/shape/mold/ build a carrier for / etc... the price could be as low as 40.25 and most importantly, the noise would be lower. However, if it was a goodby Simba - Developers
the firmware will do the mixing. the software has to slice VRML format to give it a simple RGB gcode. As for nozzles, you you can buy a ruby nozzle for 100 micron diameter. However it is useless in two ways. 1) the nozzle is designed to fit inside a larger holder, which blocks the tip from being able to touch anything. 2) You can not extrude beloe 0.35mm diameter. Someone has extruded 0.25by Simba - Developers