Let me tell you that the scale thing haopened to me in a very large pcb and I was very angree with myself. The etchant is ferric cloride? Did you move the...
30111
Paul
pwhatton
May 12, 2012 6:34 am
Hi John Congratulations on that first board. But don't worry, some problems happen to all of us from time to time. I have been making PCBs at home for years...
30112
Leon Heller
leon_heller
May 12, 2012 9:11 am
... Most FeCl3 in liquid form is concentrated, and needs to be diluted to work properly. You should have put your etching container in a larger container with...
30113
Randall Morgan
monotoba2000
May 12, 2012 10:52 am
Radio Shack does sell a "ready to use" solution that does not need diluting. But heating it does make a big difference. Also, it does not seem to work as well...
30114
Leon Heller
leon_heller
May 12, 2012 11:27 am
... Ferric chloride solution shouldn't deteriorate, unlike some other etchants. Leon -- Leon Heller G1HSM...
30115
Randall Morgan
monotoba2000
May 12, 2012 1:42 pm
Yes, I've heard that said. I have kept it a couple years without issue as long as it is well sealed. So I would be curious to know the actual concentration of...
30116
krisfr
May 12, 2012 2:05 pm
Can someone direct me to the modification of this laminator so I can make some great pcbs. I got it in yesterday and it allowed me to use the board that I...
30117
Leon Heller
leon_heller
May 12, 2012 2:08 pm
... I use these packs of FeCl3 and make the solution up myself according to the instructions: ...
30118
alienrelics
May 12, 2012 2:31 pm
From the Links section under Toner Transfer, Laminators, there is a link to modifying the GBC H200: http://www.qsl.net/ve2emm/pcb/pcb_mach_mod_e.html That...
30119
alienrelics
May 12, 2012 2:37 pm
Also look for GBC_laminator_mod In the Photos section: ...
30120
tn_medic24100
May 14, 2012 2:04 am
I used to have an old laser jet 4 that I used to print and transfer with but unfortunately after several moves it is doa. My wife bought me a new Brother...
30121
Andrew Hakman
andrew_hakman
May 14, 2012 2:14 am
How did a laserjet 4 manage to die - those things are like tanks! Some people say the Brother printers don't work because the toner has a higher melting...
30122
Mike
mishabear2
May 14, 2012 4:36 pm
I have started etching again after a year long break. I am using the pool acid and hydrogen peroxide etchant, but did the same with the bottle of pre-diluted...
30123
Spencer
upnxwood16
May 14, 2012 6:24 pm
I use the same solution and noticed heating doesnt help either. The biggest improvement in time that I get with my board came from sticking an aquarium air...
30124
Leon Heller
leon_heller
May 14, 2012 6:31 pm
... When I tried HCl and H2O2 it was very fast, with no heating. Concentrated HCl is required, Leon -- Leon Heller G1HSM...
30125
James Newton
jamesmichael...
May 14, 2012 8:19 pm
Dude, seriously... Money spent on repairing that LJ 4 will be better spent than your time trying to mess with that Brother. Yeah, it may be a bit faster, but...
30126
Confidential
scuba840
May 14, 2012 11:53 pm
We've tried 10oz copper a with Hcl/H2O2 on a ceramic dielectric. After several hours it was only about half way done. The addition of the PCB fab-in-a-box...
30127
Donald H Locker
dhlocker
May 15, 2012 12:00 am
I tried HCl with H2O2 (30%HCl with 30-volume H2O2 (about 9%, IIRC)) -- etched 1oz on FR4 fully in less than 10 minutes at room temperature. Donald. -- *Plain...
30128
tda7000
May 15, 2012 12:04 am
I would agree with that!...
30129
Spencer W
upnxwood16
May 15, 2012 1:26 am
What ratio are you using? I would love to increase my etch times Sent from my iPhone ... [Non-text portions of this message have been removed]...
30130
Donald H Locker
dhlocker
May 15, 2012 11:12 am
Sorry, I didn't write the formula and it was over five years ago. I do recall I purchased the H2O2 from Sally Beauty Supply. I can look up the product label...
30131
Spencer W
upnxwood16
May 15, 2012 11:21 am
This is what I use. 2 parts peroxide, one part muriatic acid ...
30132
Howard
hjpayneg7
May 15, 2012 12:43 pm
Hi All Am having some probs with my drill\stand setup. The stand is the type with a single slide piller, it is meant for a 240v work drill (i use a dremel...
30133
Zoran A. Scepanovic
zastoyu
May 15, 2012 12:47 pm
... Proxxon TBM 220 -- Best Regards, Zoran A. Šćepanović zastos@... http://zastos.com +381 63 609-993 -..- If a program is useful, it will have to be...
30134
Howard
hjpayneg7
May 15, 2012 1:10 pm
Hi Zoran Just had a look at the Proxxon TBM 220 It's top speed is only 8500 rpm, is this speed any good for tungsten carbide bits ? Howard...
30135
Zoran A. Scepanovic
zastoyu
May 15, 2012 1:31 pm
... I use it all the time. Drilled couple thousand holes 0.7 mm dia. HTH -- Best Regards, Zoran A. Šćepanović zastos@... http://zastos.com +381 63...
30136
DJ Delorie
djdelorie
May 15, 2012 5:35 pm
... I built a wooden dremel stand that almost never snaps bits (I've snapped far more by dropping them, than by drilling): www.delorie.com/pcb/dremel-stand/ If...
30137
Dave Sage
drsage2007
May 15, 2012 8:26 pm
I would agree. Nothing like the old HP printers. I have an old HP LJ3 (which I think is older than the LJ4 by a bit). If the printer is throwing an error code...
30138
tda7000
May 15, 2012 10:59 pm
I use the Proxxon FBS rotary tool (You can also get the IB/E which is even better) in the MB 140/S Stand, after watching this:...
