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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: Calling All Painters and Home Renovation Experienced Personel - 9 years ago
Quotethe_digital_dentist Why on earth would anyone want their living space to resemble the inside of a men's toilet at a truck stop? So what you learned was which type of paint covers sharpie ink best? Think again. The real moral of the story: People who exhibit such poor judgement that they think it's normal to write on walls wherever they go probably make a lot of other mistakes it would beby DavidBraley - General
Re: my new super duper ultra great 3d printer 
- 9 years ago
I like this! Beautiful work.by DavidBraley - General New Machines Topics
Re: Best place to put my printer build thread... - 9 years ago
Thanks Paul! I appreciate your response. I've been reading, and reading and reading... This place is full of amazing people! I am so impressed with the amount of creativity in this community. My reading has giving me a strong feeling I need to start with a smaller first machine build project. I'm thinking a machine that will still be useful, but less painful to learn from. I have been scroungiby DavidBraley - General
Re: Best place to put my printer build thread... - 9 years ago
My apologies for the dumb questions!!! I should have spent more time reading... (embarrassed) I guess this is what I'm building: Repstrap And there's even a special section for it.by DavidBraley - General
Best place to put my printer build thread... - 9 years ago
Hello all! I want to start a build thread for a printer I'm making, but I'm not 100% sure where to put it. My first guess is under the "Reprappers" section? I know this forum has specific printer style sections, but I don't think this thing is special enough to fit any of those categories. The printer will be a cartesian style machine with a build envelope of approximately 24" wide x 40" long xby DavidBraley - General
Re: Heated Bed, How Flat? - 9 years ago
Thanks for the info gentleman! WallyL: I like how simple Richard's design is. Jaguarking11: Love the video and the great information! FatFreddie: I find it interesting that the smaller filament sizes work with the large nozzles. Gives me lots of brain food to digest... Been spending some time on the design of the machine. I just got some stepper drivers in the mail so I'm going to fire up tby DavidBraley - Mechanics
Re: Heated Bed, How Flat? - 10 years ago
I'm imagining the machine I link to above in the video is somehow printing sodium silicate onto a thin layer of sand, and then immediately hardening it with C02.by DavidBraley - Mechanics
Re: Heated Bed, How Flat? - 10 years ago
Thanks everyone. You have given me lots to think about. The PVA would be perfect, but as dc42 points out, it's super expensive in filament form. Because the pellets are used in water treatment, it's possible they can be purchased in bulk for less. I'll do some inquiring about that and see if anything comes up. I did stumble across this interesting video of a company that makes a machine that priby DavidBraley - Mechanics
Re: Heated Bed, How Flat? - 10 years ago
Thank you cozmicray! I was really relieved when you pointed me to the "Volcano" nozzle site. I had already been wondering if using nozzles much larger than what I normally see others using was something doable. Instead of filament, I'm looking at the extruder heads some here are working with. I think in my case, extruding pellets would be easier, and cheaper for the large parts I want to make. Iby DavidBraley - Mechanics
Re: Heated Bed, How Flat? - 10 years ago
Thank you dc42 for the fast reply! Maybe I should restate my question: What percentage of layer thickness would be a good target for flatness? I'm guessing/imagining once the first half dozen or so layers get put down, things get better from there... I've read on this forum and elsewhere that a 0.3mm layer thickness is considered the gold standard for a reprap home built machine. I've also reaby DavidBraley - Mechanics
Heated Bed, How Flat? - 10 years ago
Hello, Sorry if this question has been asked before and if I'm asking in the wrong place. I spent some time trying to find an answer, but I must not be using the correct vocabulary in my search strings. I'm building my first printer and I am wondering what people mean when they talk about the print bed being flat. I have been a precision machinist now for almost 40 years, and my understanding ofby DavidBraley - Mechanics