/diy/ - Do It Yourself

Bumpan for interest

shameless bump

>>205021
Well some people where copying atm fronts and attaching them to front of atm with small camera above and below card swipe, stole hundreds of cc info

>>205266
thanks, but I'd like to keep it legitimate...

I've built a Prusa mendel.
All told I've put 500$ in it.
I'd recommend using the Makegear Stepper Plastruder head rather than making your own -- it's the both the most critical part and was the hardest for me to tune.
No 3D printer will make plastic things that look like injection molded plastics, though. the best resolution I've heard of is .01mm -- that is texture still visible to the naked eye.

>>205274
Yeah sorry dumb of me to post anyway, knicknacks would be easy I guess sorry I'm not more help. Try making plastic ocarinas and sell them to kids and schools :p

>>205274
try and find people who design houses and may need a presentation like new condo development

>>205278
Have you had any success selling things you created? Something that could form a solid business?

I'm assuming the plastic is not very solid.

Trying to mass produce things on a prototyping device-- that's not a good way to go..

using the prototyping device to make molds and forms that you can use to manufacture on a small scale -- that'll work.
and of course, prototyping.

>>205283

give out your card at inventor trade shows

>>205282
depending on the plastic I use, and the printer settings, very solid.
I've printed in ABS, PLA, and polycarbonate(plexiglass).

I haven't tried to sell anything. Don't plan to. not my cup of tea.

>>205285
Thanks for the advice.

If you don't mind me asking, what do you use yours for?

Wait if it makes abs how strong and how impact resistant??? We've been looking for a new type of mask for out hardcore hens fencing

>>205286
gifts for friends, repair parts, project enclosures, wall hooks... browse thingaverse -- there's all sorts of stuff -- anything you can make a 3d model of, within a few limits.

--god I hate capcha's

>>205289
I'm sure it could hold back chickens... but the build envelope is around 8x8x8 inches...

>>205286
one of the more interesting things I've printed is a set of those quick release hard drive brackets -- the ones that dell wants to charge 25$ for. 2 hours modeling, 1 hour printing, 0.50$ of plastic.
not worth my time if I was doing it for money (25/3 = ~8.00/hour) but worth it from a satisfaction/ hobby viewpoint.

>>205294
I'm sure there's some products priced even higher that I could emulate.

How long did it take to learn/master the modeling software?

>>205301
master -- not yet, figure out basic shapes -- about 12 hrs

I'm off to build a ruban's tube. if this thread is around tomorrow, I'll answer more stuff then.

I really want one of these to make cores for a castings in a foundry. It's a great base. If it's too gritty, wipe it in wax. Put in sand. Cast it. Machine it to spec. Yeeeaahhhh

>>205366
Every time I think that, I realize you can make better parts simply by machining them.

What 3D printers were intended for: Fast prototyping.
What 4channers use 3D printers for: Compensating for a complete lack of talent and skill
What /b/ uses 3D printers for: Sex toys

Anything you would likely print on one of these out of plastic is likely already mass produced in china and the end product is sold for less than you can buy materials for. These are good to play around on and assist in other projects, but aren't really a viable business option.

>>205021
>>As a potential business this interests me.
You're too late. There are big companies called "service bureaus" that specialize in this sort of thing.

>>205371
>>simply machining them
Metal 3d printers are being used to produce aerospace parts from titanium, because as it turns out, superhard titanium alloys are really difficult to machine. Not to mention the 3d printing process is a lot less wasteful than machining, plus you can make much lighter parts than you could with machining, pic related.

>>205453
>superhard titanium alloys are really difficult to machine

Steel's worse, but that's still a point.

Sorry if this is off-topic but does anyone know if there are any 3D printers that can print out PCBs? If not are there machines that aren't a huge fuckton of money to buy/build that can print out PCBs? I'm wondering if you could use something like that to produce computers to sell on a small scale, maybe OP is thinking of something similar.

>>205454
Yep. I was thinking, as someone who machines steel, titanium ls child's play, although harder than aluminum of course.

I would say that printing has a slight advantage in very complex parts, or large and awkwardly shaped parts.

>>205464
Oh and when I said machine, I mean in comparison to casting that I replied to.

>>205462
Use your laserjet printer?

http://www.bcae1.com/circuitboardetch.htm

"Toner Method:
There are several ways to get the layout pattern onto the copper clad board. This section will deal with the toner transfer method. The toner in a laser printer or laser copier is a thermoplastic. This means that it melts when a certain temperature is reached. A laser printer or copier uses heat and pressure to transfer the image from a drum or belt onto the paper. For this method, we'll use a regular clothes iron and some elbow grease to transfer the toner from a piece of paper to the copper clad board. In the final board, you'll notice a lot of pinholes in the copper areas. This is due to poor coverage by the toner. This was done with a generic toner cartridge. I've since tried this with a genuine HP toner cartridge and the results were much better. "
http://www.youtube.com/watch?v=-QEYzjjrX7s&feature=related

Or buy special ink and print directly to your pcb with an inkjet. (If it's not too much bigger than your CD tray)
http://www.youtube.com/watch?v=p9W6mWtA8YM&feature=related

etc,

You can also get acid 'inks' to etch cellulose for your silk screen machine.

Is there (any files) on human bones I can print out?

I want something to scale, with an adult male hand. Ulna and radius would be great to, but I need the hand bones the most!

What for? Robotic hand/arm, using the human hand as a base.

>>205483
http://www.youtube.com/watch?v=VFW_ay40uXA&feature=fvwp

This guy has got a better process but it looks like you're buying special copper boards with a layer of photo resist stuff on them already.

But you're using light! Just like the real fabs!

look up reprap. it's a open sourced 3d printer with a fairly large community and one of the selling points is that a reprap unit can print out copies of some of its parts to make more reprap units. People make it and sell these parts to other hobbists wanting to make their own reprap.

Anyways these things, especially the lower end ones, don't really make finished products but prototypes. You could do something artsy that people would buy. But you gotta remember that the product will be made of whatever medium the printer uses.

Anyways here's an idea...
Come up with a wicked cool thing like a sci fi laser gun. use 3d printer to make the rough shape which will be 98% of the finished shape anyway. sand and use bondo to smooth out and make the entire thing stream lined and look like how you want it. Use that as the shape to make the negative for a mould. Then cast using resin or fiberglass or whatever to make dozens of them...commission an art student to paint them awesome, sell to larpers and scifi fans and for costumes...

>>205483
>>205485
That's awesome, I think I heard of being able to use a printer like that before but I must have forgotten about it.

>>205484
http://www.skeletonstore.com/set-of-2-bucky-skeleton-hands---left-and-right-171

>>205510
Not a bad idea. I could envision some steam punk fans going for some ornate gears.

>>205533
That won't work. I need the files so, I can make my own joints and what not with makerbot.

>>205484
Someone already did that. Look up the anatomically correct test bed. Used a lot of motors, 28 was it? Thing is human hands are over-actuated, you use more actuators than you have degrees of freedom.


Though I suppose you could find scans of a human hand online. It's going to be in voxel data format, so you'll have to do some tricky stuff to convert to stl. You might be better off going from voxel data direct to 3d printer commands if you can manage it.

This guy on kickstarter has a pretty good looking diy printer called a Bukobot, 999 bucks for an assemble yourself basic printer, and lots of other options including pre-assembled. Might check it out. It probably wont ship till August though.

http://www.kickstarter.com/projects/deezmaker/buko-3d-printer-raising-the-bar-of-open-source-3d

>>206096
Thanks for the head's up

>>No.205462
I have evaluated 3D PCB printer of 300,000 dollars ten years ago. The machine appeared like a revolution. However, the result was tragic. The PCB printer was able to form the circuit using conductive organic resin, and was able to protect it by insulating resin, and also moreover, was able to make conductive resin cross. Theoretically, wiring of tens of layers was possible.
However, the printer was not taking into consideration the wiring length of the height direction when crossing wiring. When wiring went wrong, it was impossible to have repaired the portion. Control software was waste. I manufactured one board over 12 hours, and when it got to know that the result is a defective unit, I cried.

I recommend using a CNC milling machine. PCB manufacture by a CNC milling machine is often performed.