Let's Make Robots!


Hey LMR, 

Has anyone here got, or has heard about, the PrintrBots. I am thinking of buying one and I am just wondering about people's experiences with the company and the actual printer.

Some things I would really like to know are:

Is it worth the price? Is the liney effect that you get on prints really bad or can that be improved with tuning and experience? Can you make threads for screws accurately or is that a longshot?

Thanks Guys (and girls)

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Hey guys,

Just one more question. Do you find that your printer is used once when you get it and then just left unused once the novelty wears off? It is just a lot of money and I don't want that to happen.

Thanks again

... in the end the printer is a tool enabling you to create stuff. You use it or not :)

you probably won't have any shortage of uses for your printer. Thingiverse is populated by a large number of intelligent people. You might even decide to print something of your own design. However, my printer is waiting for me to get it reassembled.

I'll get one. :D

Thanks for your help guys.

I did indeed do an aluminum version of this machine for my own use. I cannot speak about the Printrbots specifically, as I have never owned one, but I can not stress enough how much I like the design. It is "least number of parts" and "least number of moving parts" --both are pretty high on my list of good designs. 

When I was redrawing the design to work with the aluminum material I was planning on using, I followed these assembly videos. There are a lot of them, (a dozen or so, I think) and they show the assembly of the Printrbot from start to finish in real time. They should give you a pretty good idea at what you would be looking at buying.

http://www.youtube.com/watch?v=eyI8z3lGk8U  <--this is the first one, the rest can be found under "related videos"

I recommend you read the assembly instructions on line before you decide. The best I found for the printrbot+ are on the wiki http://www.printrbottalk.com/wiki/index.php?title=Assembly. I have one misaligned part but the folks at printrbot responded quickly and sent out a replacement mere hours after my initial e-mail. It's to early for me to say if I like it or not but I will let everyone know when I get it finished.


As bird mentioned I own a derivative of Printerbot called Hugo.

I would say that printerbot is great to start with, it is very simple compared to a Prusa.

The lines are a product of the technology and you can't really get rid of them, you can just minimize the effect.

Screws - no thread smaller than 1 mm pitch would come out usable with .5 mm or 0.35 mm nozzles, possiby with a smaller one you could ... 0.1 maybe ... but you would hit lots other issues using it.

You can find them on Thingiverse.

CtC has one he built the majority out of aluminium. It may not actually be featured here, I could also be wrong.

TinHead has a Hugo(?) that is based on the PrintrBot. 

Chris loves the design of the PrintrBot, and, sings its praises. I don't own a PrintrBot, but, I have built a Prusa, and, I would say for the price, the PrintrBot is definitely worth it. The thing about hobby 3d printers is, they can print parts for larger printers. So, if you feel the need for a larger printer at some point, you will most likely have the option of printing the parts, and, building a larger printer.

Re: liney effect. Do you mean the layers? The parts will never look like they came from a powder based printer, or, a DLP printer. The layers can be made quite thin, and, I have even heard mention that some prints can be so fine that one really can't feel the layers.

Re: threads. Your ability to produce screws really comes down to your printer, and, your ability to make or find a printable model. I have seen "threaded rod" that was printed. Where imperical standards are 1/4" - 20, or, 1/4" diameter with 20 turns per inch, this was more like 1 - 1/4, or, 1" diameter with about 1/4 turn per inch. I don't know what the practical limit of a printer is. I am sure they can do better than that. You won't be printing a 1/4 - 20 threaded rod with it. An ACME thread form 'might' be doable at a reasonable TPI.

Thanks for the information. It was very helpful.

I suppose I will just buy the threaded rods. :)