Comments on: Nickel-O-Matic

By: Frank Cohen

Frank Cohen — Mon, 12 Sep 2011 22:05:11 +0000

@djilspider That’s what she said!

By: matt

matt — Thu, 01 Apr 2010 07:49:45 +0000

if you are still commenting; can you give a description of the machined part that holds your bearing? Or how about a word or two about where to learn how to do it, thanks.

By: Mike

Mike — Wed, 25 Mar 2009 20:04:46 +0000

Just as a note, this does not use the Parallax inkjet printer kit.

The inkjet head is pulled from an old ThinkJet and the head is driven directly from the Propeller chip. This is something that anyone can build today and you don’t need to buy anything commercially and you have a lot more control over that the head can do than with the Parallax kit. The code I have on the Parallax website for the Propeller chip would likely get someone started. Mike

By: philpem

philpem — Wed, 25 Mar 2009 18:11:10 +0000

Shame the Parallax printer kits are NLA. Would have rather liked to have a play with one of those… :-(

Oh well, there’s always the option of using a variant of Sprite’s “inkjet stamp” hack and a HP #40 cartridge…

By: Mike

Mike — Wed, 25 Mar 2009 18:10:25 +0000

All the source code is available over at the Parallax web site, I guess the link didn’t make it into the article. http://www.parallax.com/tabid/769/Default.aspx

There is a lot of other information there too.

I don’t have any drawings of schematics, I just don’t work that way most of the time. If any body wants details though just let me know.

Mike
Ooops, should have added good post! Waiting for your next one!

By: Mike

Mike — Wed, 25 Mar 2009 17:31:39 +0000

All the source code is available over at the Parallax web site, I guess the link didn’t make it into the article. http://www.parallax.com/tabid/769/Default.aspx

There is a lot of other information there too.

I don’t have any drawings of schematics, I just don’t work that way most of the time. If any body wants details though just let me know.

Mike

By: will

will — Wed, 25 Mar 2009 16:58:12 +0000

dave: the helical flex coupling on the stepper motor can be bought from McMaster-Carr; they are listed under Heavy Duty Bellows Shaft Couplings.

By: andrew

andrew — Wed, 25 Mar 2009 16:04:29 +0000

psh, we don’t need the details to admire his workmanship! seriously, it’s a well-designed machine and works flawlessly, love it.

By: fartface

fartface — Wed, 25 Mar 2009 15:26:15 +0000

More of a “lookie lookie” and no sourcecode, schematics, howtwo.

Neat, bot not worthy of hackaday release the code, drawings and other stuff.

By: Dave

Dave — Wed, 25 Mar 2009 03:58:25 +0000

Awesome! I’ve been looking to make a contraption like this. Where did you buy the helical flex coupling on the stepper motor?

By: strider_mt2k

strider_mt2k — Wed, 25 Mar 2009 03:40:40 +0000

Beautiful machine!

i’d spend a couple of quarters!

By: malikaii

malikaii — Tue, 24 Mar 2009 22:59:31 +0000

@andar_b

LASERS.

that high quality work right there.

By: Andar_b

Andar_b — Tue, 24 Mar 2009 21:49:17 +0000

It would be cooler if it didn’t use an inkjet print head, IIRC most wooden nickels are burnt with the info, I’d have experimented with burning in the image somehow, perhaps a ‘print head’ made with a heated matrix of pins? Or at least burn in one side with the machine info while variable-printing the back.

Maybe they were avoiding smoke. Besides, woodburning heat would be harder to manage, I guess.

It might be cool to do something similar with clay poker chips, but mill the design into the surface.

By: Marco

Marco — Tue, 24 Mar 2009 21:10:04 +0000

Nice. Now all it needs is a drill and sander so you can feed it raw lumber.

By: rasz

rasz — Tue, 24 Mar 2009 21:09:54 +0000

man that breast pump is loud
he could of used car central lock pump, or HOTAIR membrane pump