Re: Fanatical hobby projects
2006-09-15 by Steve
... OK, it s settled, I get the CNC drilling machine, cause Russell doesn t want it! Steve Greenfield
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Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-15 by derekhawkins
... Vellum is translucent not transparent. The more opaque the media the greater the overall opacity. What about transparencies? Thought we were going apples
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-15 by derekhawkins
... Haah-hah (with apologies to Nelson Munz). You re in for another disappointment when you start using laser artwork for CNC work. Dimensional accuracy sucks
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-15 by Andrew
... Fuji Xerox Docucentre C4xx. I beleive they are using the technology they bought from tektronics. It puts down a good thick layer of black plastic when I
RE: [Homebrew_PCBs] Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-15 by John Craddock
... The laser printer in front ... OK I ll bite! What model is it? Tks JC
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-14 by Andrew
... Huh. How do I have my priorities mixed up ? I HAVE a UV exposure box. I agree it is the absolute first thing you need if you are going to photo etch
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Stefan Trethan
On Thu, 14 Sep 2006 21:21:47 +0200, Tony Smith ... Any my response to that was that alligator clips are the wrong tool to go about
Re: Fanatical hobby projects
2006-09-14 by derekhawkins
... Are we on the same page? I was suggesting that a CNC drilling setup had more practical value to the PCB homebrewer than a spray etching setup. Wasn t
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Tony Smith
... Sigh. And my original comment was alligator clips tend to fall off striaght pins. Look folks, round and round it goes, where it stops only ST knows. Tony
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Stefan Trethan
On Thu, 14 Sep 2006 20:02:59 +0200, Tony Smith ... I would expect they use the _proper_ _matching_ _receptacle_ which anyone can
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Tony Smith
... Yep, while you re at it, ask them if they use alligator clips. Or do they use parrot clips, which tend to hang on better. Tony
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Stefan Trethan
On Thu, 14 Sep 2006 19:09:15 +0200, Tony Smith ... Ok, when i meet a Fluke or Tektronix or Siemens or Norma engineer i will tell them
Laminators
2006-09-14 by r c
I am planning to use the toner transfer method for etching of up to 1/32 thick solid copper sheet (and regular PCBs after this project). Are there any
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Tony Smith
... Yeah, header pins, leaving the component lead long, works fine. As I said, hobbiests are cheap. And they use the cheapest clip going, being the alligator
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-14 by Stefan Trethan
On Thu, 14 Sep 2006 17:57:04 +0200, Hector Garcia ... Yes, differences in etching time and agressiveness, but it all depends on the parameters you run both
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-14 by Hector Garcia
After reading all your posts, I can realize my mistake. Days ago, (¿yesterday?) I draw on a paper the supposed chemical reaction, (on mi limited Chemical
Re: [Homebrew_PCBs] Re: Fanatical hobby projects
2006-09-14 by Russell Shaw
... Milling machines are crap for removing copper. I routinely do 200-hole pcbs with a hand drill press.
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Stefan Trethan
On Thu, 14 Sep 2006 14:40:56 +0200, Tony Smith ... What are you talking about? Have you actually read my post? I clearly established
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-14 by derekhawkins
... Priorities all mixed up just like the rest. Exposure box should be #1. Also, if you re using laser artwork then forget UV, use daylight tubes. The box will
Re: Fanatical hobby projects
2006-09-14 by derekhawkins
... It s quite obvious where your head is. The purpose of my question was to zero in on which of the two projects would result in reduced recurrent expenditure
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-14 by Tony Smith
... it ... As I said, sheesh. Hobbiests are cheap and use dodgy stuff which doesn t work all that well at times. Not exactly the newsflash of the century.
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free P
2006-09-14 by Andrew
... Assuming it wasn t a loaded question - could we complicate it further by including 1, Photoplotter 2, Laminator (photoresist and soldermask) 3, Decent UV
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-14 by YD
... http://en.wikipedia.org/wiki/Hydrochloric_acid_regeneration ... http://www.xbot.es/webs/robotika/tutoriales.htm#regenerar ... If you can get a sufficient
Re: [Homebrew_PCBs] Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free PCB-CAD
2006-09-14 by Russell Shaw
... His spray etcher looks pretty damn impressive and is a harder thing to get working right because of the other design problems involved rather than just a
Re: Fanatical hobby projects was: MultiLayer was: What is your favorite free PCB-CAD
2006-09-14 by derekhawkins
... Suppose you won first prize in a homebrew PCB making contest and the prize was either a CNC drill setup or a spray etcher, which would you choose assuming
Re: Stupid- simple tip but worth it ....
2006-09-14 by derekhawkins
... Header pins make the best homebrew vias IMO. All my dedicated vias are clipped header pins. However, a dedicated via is always a last resort.
Fanatical hobby projects was: MultiLayer was: What is your favorite free PCB-CAD
2006-09-13 by Adam Seychell
... True, true. If building a hobby CNC drill is a fun project then why not, if thats what someone enjoys doing. I m currently building a spray etcher, and I
Re: Just a friendly reminder to plug your hoses!
2006-09-13 by Len Warner
... Again we have reference to this canard that seems to claim that Ferric Chloride in aqueous solution isn t acid. If the pH is around 7 (neutral) there will
Re: Stupid- simple tip but worth it ....
2006-09-13 by lcdpublishing
Just a simple suggestion guys - no need to get excited. My point being that while you can use the leads of resistors and other components to make vias,
Re: Stupid- simple tip but worth it ....
2006-09-13 by derekhawkins
... My point was that the leads of existing installed TH components are potential vias and test pins. A scopes probe will probably hold better to a resistor
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-13 by Sander Pool
I often use .1 pitch Berg connectors as test points. Very convenient. I use a flexible wire with a Berg connector on one end (shrink tubing around it to
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-13 by Stefan Trethan
On Wed, 13 Sep 2006 20:11:09 +0200, Tony Smith ... I ll have you know in lotsa high quality lab instruments the test pins are normal
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-13 by Tony Smith
... Sheesh. You can make your test pins out of barbed wire for all I care. Just don t complain when the leads fall off after you bump it. Tony
Re: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-13 by Stefan Trethan
On Wed, 13 Sep 2006 19:26:45 +0200, Tony Smith ... Who says you can not simply make test leads with header sockets? Much better than
RE: [Homebrew_PCBs] Re: Stupid- simple tip but worth it ....
2006-09-13 by Tony Smith
I think he meant you can use it as a test pin, ie clip an alligator clip to it to take measurements. Might not be overly successful, real test pins are flared
Re: Stupid- simple tip but worth it ....
2006-09-13 by derekhawkins
... First option to explore would be the leg of an existing installed thru hole (TH) component (headers included). That s why the move from TH to SMD doesn t
Stupid- simple tip but worth it ....
2006-09-13 by lcdpublishing
Hi guys, Many of us make double sided boards and have to create vias from one side to the other. Often it s a piece of wire or a cut-off leg of a component.
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-13 by Herbert E. Plett
... as previously discussed, that s NOT regeneration, it s creating CuCl etchant on top of the dirty exhausted FeCl. if you want to use CuCl then use it pure
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-12 by YD
... You end up with CuCl2, the iron precipitates out as hydroxide (rust). - YD. __________________________________________________ Do You Yahoo!? Tired of
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-12 by Hector Garcia
... Hi Again Stefan. I can t remember the chemistry classes I took at college. I found the original source in english
Re: [Homebrew_PCBs] Just a friendly reminder to plug your hoses!
2006-09-11 by Stefan Trethan
On Mon, 11 Sep 2006 22:42:12 +0200, Dwayne Reid ... That s a good idea! One could even plug the hole if the escaping air would be a
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-11 by Stefan Trethan
On Mon, 11 Sep 2006 22:34:53 +0200, Hector Garcia ... I m still not certain about FeCl regeneration. Does the FeCl really get regenerated, or does one simply
Re: [Homebrew_PCBs] Just a friendly reminder to plug your hoses!
2006-09-11 by Dwayne Reid
... If I may make a suggestion: put a tiny air hole in the hose. Place the hole at the highest point in the siphon - where the hose goes over the edge of the
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-11 by Hector Garcia
... Hi Stefan ... I guess you re right. 2 beers and mi bad english makes me see some elephants in pink :-) Anyway, Both HCL and H2O2 regenerate FeCl well. I
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-11 by Stefan Trethan
On Mon, 11 Sep 2006 19:51:10 +0200, Hector Garcia ... This does not seem applicable. ST
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-11 by Hector Garcia
... Hi Chris Before you spend your money go to the supermarket, buy a bottle of Muriatic Acid (Hidrochloric Acid, HCL,
Re: [Homebrew_PCBs] Re: Just a friendly reminder to plug your hoses!
2006-09-11 by Stefan Trethan
On Mon, 11 Sep 2006 18:31:44 +0200, lcdpublishing ... hmm, i have the hose above etchant level as well, and thought myself rather safe due to that. Maybe i
Re: Just a friendly reminder to plug your hoses!
2006-09-11 by lcdpublishing
My hose comes out of the tank above water level, however, I just coil it up and let it lay in the bucket around the tank. Something must have got it going to
Re: [Homebrew_PCBs] Just a friendly reminder to plug your hoses!
2006-09-11 by Stefan Trethan
On Mon, 11 Sep 2006 16:04:59 +0200, lcdpublishing ... Indeed! I had a similar situation, twice ;-) Does the hose leave the tank below or above the etchant
Just a friendly reminder to plug your hoses!
2006-09-11 by lcdpublishing
Hi guys, Went out to etch a board this morning only to find my tank empty - luckily I store it inside a bucket so all was well. The Ferric Chloride siphoned