It seems like one could implement something similar to the Peachy concept with basically a laser cutter(of which there are several open source designs out there) over a build vat plus a pump hack or...
Type: Posts; User: Toasterboy
It seems like one could implement something similar to the Peachy concept with basically a laser cutter(of which there are several open source designs out there) over a build vat plus a pump hack or...
Agreed. Rylan, there is an unbelievable amount of support for Peachy. Most kickstarter projects have nowhere near the patience or excitement that our community has had. Can you please make another...
The first set of pressure sensors I got were exactly as specified, 1.6mm x 1.6mm... it's just that I didn't realize how small the contacts on the chip would really be and I am a noob with soldering....
Resin doesn't really shrink much when it cures in a mold anyway, at least, the casting resins I have used don't. Plaster and hydrostone are also rather dimensionally stable. If anything you would...
That's way cool. You could sort of print in full color that way. I guess the question is whether you would be selecting one of n colors per gcode line segment (probably simplest way to do it, with...
The "print head" for Peachy is basically a laser which is deflected by mirrors controlled by electromagnets. The print volume is then basically a pyramid or cone below whatever height the print head...
So, been a while since I have posted. The pressure sensors I ordered turned out to be smaller than expected and just too tiny to successfully solder, so I haven't worked on the project for a while. ...
We've been talking about using an Arduino with peristaltic pump and interrupt sensor, or a fuel injector and pump in the "Mount and Reservoir Discussion" thread. (and there's some other relevant...
OK. I found a $1.56 absolute pressure sensor on Mouser that should work. Might be a bit of a pain to mount it. I think I can drill a hole in a PVC Tee joint, glue the sensor die on carefully...
Yeah, that's what I have in mind to try after I get a sensor (and probably an emergency release valve). Will the braided stuff hold around 100psi with barb connectors and zip ties? Rather not have...
Here's a video of the proof of concept injector setup:
http://youtu.be/IbCaojoOXYE
It is configured to open the injector for 80ms, and close it for 50ms. That works out to ~7.69 pulses per...
Ok, so I programmed the arduino to fire the injector 20 times a second and hold it open 80 ms each pulse. Wired up the pump, and connected the hydraulics with surgical tubing (and zip ties, after...
Fantastic! Yeah, I thought you had mentioned that early on. Do you think that prints #76-78 might have gone better with a buzzer breaking the surface tension and an injector or pump providing...
=)
I'm not a beta tester. Would be fun though.. wish I had my hands on a Peachy. =) The dripper assembly is decoupled from the actual printer, so it's quite feasible to experiment with the...
Ok, Cool.
You might be able to play with the Mesh Deform Cage in Blender to rapidly zero in on the required deformation matrix. i.e. model a concentric onion cube (with smaller cubes inside) like...
Yes, thanks for the great response. I'm really excited about the printer.
Are there any other I/O pins for output on the peachy board? It sounds like there is a drip sensor pin on the board ;...
Awesome. 40 degrees of deflection is great. With those angles, 10' of height (e.g. a ceiling mount) gives you 7.2' square of surface below the top of your build area, so this seems like it's...
Reading the peachy beta kit instructions, it looks like the calibration step is smart enough to scale the Z per "drip" based on the height provided. Is that correct?
If so, and we replace the...
Aha, didn't know about peristaltic pumps. One of those would work great and be much cheaper than I was thinking.
I'm not suggesting scaling up the fill rate with small containers; only for large containers. Keep the fill rate proportional to what works in small containers. They used water drops in the design...
I did some more napkin math.... if the pump/holding tank/ valve setup is calibrated to drop ~.35ML for each "drop", that would correspond to about 1 micron Z in a tank sized 24"x22.5"x14.5". So...a...
How big of a build area have you actually tested?
What is the maximum deflection angle for the peachy like? I'd like to get an idea of how high the printer needs to be mounted as related to...
Hey folks, with the Peachy printer hitting 1.0 and hopefully shipping soon, let's talk about reservoir, build area, and mounting options.
I'm planning to use straightwall industrial containers for...