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Re: Automated Circuit Production - 17 years ago

Zach, Did I understand you correctly that you'd managed to get KiCad to generate PCB layouts? Forrest

by Forrest Higgs - General

Re: RepRap axes conventions - 17 years ago

That's the accepted convention for RepRap as I understand it. It amounts to swapping the y and z axis information out of AoI in practice.

by Forrest Higgs - Reprappers

Re: Automated Circuit Production - 17 years ago

Yeah, it makes sense to me. For some reason, however, the bending of reprap to do integral circuitry and circuit boards has recently taken on an urgency among most of the development team which is a bit hard to fathom. I doubt that a tiny fraction of reprap users will ever turn it to making a circuit board of any kind. There are too many other easy ways to acquire circuit boards and too few pe

by Forrest Higgs - General

Re: New module in forums - 17 years ago

***hmm... it kinda makes you wonder what the benefit of the blogs is smiling smiley *** Blogs usually have a very limited number of publishers. Forums rarely do. The inability of the old forum to let newcomers and outsiders give visual suppliments to their arguments and questions was, imo, it's biggest weakness and most annoying feature.

by Forrest Higgs - General

Re: Is this the goal? - 17 years ago

Not really. ZCorp builds models out of plaster or starch set in place with a fixative. Our systems use Fused Deposition Modelling (FDM) which builds up models by extruding layers of molten plastic.

by Forrest Higgs - General

Re: Oshonsoft ATMega firmware compiler available... - 17 years ago

I have no idea.

by Forrest Higgs - Reprappers

Re: Adrian's polyfilla extruder... - 17 years ago

***Here RepRap does better than the Strat - we make gas-tight stuff; the Strat output needs to be painted with a solvent to seal it up.*** Cool! Didn't know that.

by Forrest Higgs - Developers

Re: wahoo!! - 17 years ago

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by Forrest Higgs - Developers

Adrian's polyfilla extruder... - 17 years ago

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by Forrest Higgs - Developers

Re: T-shirts and mugs - 17 years ago

RepRap.org It ain't played on your radio, bro.

by Forrest Higgs - General

Some things I certainly didn't know about PTFE - 17 years ago

Some things I certainly didn't know about PTFE. First, "PTFE resins have an unusual thermal expansion characteristic. A transition at 65

by Forrest Higgs - Developers

Re: wahoo!! - 17 years ago

Go Zach!!!!! :-D ----- Original Message ---- From: Zach Hoeken To: Reprap Developers Sent: Tuesday, February 27, 2007 8:52:46 AM Subject: wahoo!! i just got my final shipment from mouser, my solarbotics motors, and my nichrome wire. this is going to be an exciting week. ~Zach _______________________________________________ Developers mailing list Develop&#

by Forrest Higgs - Developers

Re: A little more on extruding solder... - 17 years ago

***Make barrel from aluminium?*** I think that that's my next move. The hardware store has 5/32 inch tube in aluminum and I've been interested in trying out an aluminum extruder barrel in any case. I've also thought of using a 3/32 inch tube in that it will hold the 1.27 mm fine solder pretty well. The only problem with that is that solder at that thickness is about as stiff as cooked spaghet

by Forrest Higgs - Developers

Re: Dell goes for Linux... - 17 years ago

----- Original Message ---- From: Forrest Higgs To: Reprap Developers Sent: Monday, February 26, 2007 7:02:28 AM Subject: Dell goes for Linux... Dell Computers is going to start shipping PC's and laptops preloaded with Lunux and Open Office. This will go a long way towards breaking Linux out of the 10-12% figure for desktops and laptops that it commands in the US currently.

by Forrest Higgs - Developers

A little more on extruding solder... - 17 years ago

Some of this might be of use in Adrian's Wood's Metal work, so I'm passing it along. I sloped on down to the hardware store this morning with my calipers. Standard American plumber's and electrician's solder comes in a nominal 1/8 inch diameter. In reality this solder is 0.12 inches in diameter (3.048 mm). You can fit it in the 5/32 diameter hard copper tube of my low thermal inertia extruder

by Forrest Higgs - Developers

Re: Documenting the Mk 2.1 - 17 years ago

***Sure it will. All that stuff needs is a heater to drive, a thermistor to tell it the temperature, and a drive motor to connect to its H bridge. You've got all those.*** That's rather what I thought. I don't use a thermistor, but that doesn't mean that somebody couldn't strap one on it if they wanted. About the only substantive change that I saw in your firmware was upgrading it slight

by Forrest Higgs - Developers

Re: Documenting the Mk 2.1 - 17 years ago

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by Forrest Higgs - Developers

Re: Note re: the Developers forum (and the mailing lists) - 17 years ago

I'll try to remember to swap over to plain text whenever I respond to messages that go into this forum. I'd got rather used to using rich text, sadly. :-(

by Forrest Higgs - General

Re: Ultraviolet LEDs and UV set polymers - 17 years ago

What is expensive about that process is the cost of filling the tank with the liquid monomer. That can get very pricey, I'm told. :-(

by Forrest Higgs - Polymer Working Group

Re: Interesting properties of ABS - 17 years ago

LOL! You really need to get your Mk 2 running so that you can extrude plastic, any kind of plastic. Let me tell you, it's quite a rush to watch your very own reprap machine start printing, however awkwardly at first. :-D

by Forrest Higgs - General

Re: Thoughts on terminals - 17 years ago

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by Forrest Higgs - Developers

Documenting the Mk 2.1 - 17 years ago

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by Forrest Higgs - Developers

Re: extruder bearing idea - 17 years ago

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by Forrest Higgs - Developers

Re: Contributing as a Writer? - 17 years ago

I expect you could be very useful indeed! Although I doubt VERY seriously that RepRap would ignore your offer, in the unlikely event that they do drop me a line.

by Forrest Higgs - Reprappers

Re: ABS and HDPE prices - 17 years ago

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by Forrest Higgs - Developers

Re: Interesting properties of ABS - 17 years ago

If you could recover the acetone it might be a good way of recycling plastic into filament feedstock.

by Forrest Higgs - General

Re: Note re: the Developers forum (and the mailing lists) - 17 years ago

I have no great affection for Yahoo formatting options that are currently in use in my yahoo account. Let me know what formatting options I must use to stop the trouble and I'll most likely shift over.

by Forrest Higgs - General

Re: ABS and HDPE prices - 17 years ago

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by Forrest Higgs - Developers

Re: Which Stepper Motor? Motion system? - 17 years ago

***Also the accuracy of version 1 (Darwin) isn't really up to producing highly accurate gears on its own, so the errors would creep in very quickly. *** We were using threaded drive rods with Zaphod, but Adrian dumped them for belts with Darwin. Belts are faster, but it would appear that they would have coarser resolution. Does anybody know what kind of XY resolution that Darwin is on-track to

by Forrest Higgs - General

Re: stripboard graphics program - 17 years ago

Found the svg's. Wondered about that.

by Forrest Higgs - General