Re: [Homebrew_PCBs] Precipitate in ferric chloride storage bottle
2010-09-24 by Howard Chester
... From: Philip Pemberton Subject: [Homebrew_PCBs] Precipitate in ferric chloride storage bottle To: Homebrew PCBs
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Re: [Homebrew_PCBs] Re: need recommendations for free simple 2D CAD program
2010-09-24 by Henry Liu
Download Draftsight from the makers of Solidworks: www.draftsight.com When a company makes $2 billion dollars a year on 3D CAD software wants to get into the
Re: need recommendations for free simple 2D CAD program
2010-09-24 by gandolfreefer
Hey, just an update for anyone who might be starting down the same trail... I finally just settled on using the free CAD from emachineshop.com. It s probably
Trouble with through hole pads connected to plane
2010-09-24 by Steve Maroney
Dear Gang, I m having quite a bit of trouble when I solder a component lead (or jumper wire) to a through-hole pad that is connected to a ground plane. When I
Re: [Homebrew_PCBs] Precipitate in ferric chloride storage bottle
2010-09-24 by Russell Shaw
... See if HCl dissolves it. If so, you can keep using it as etchant. If you have a bubbler to agitate the tank when etching, things will get much easier.
Re: [Homebrew_PCBs] Tinning for Photo-resist?
2010-09-23 by rocko
I just switched over to the photo-resist method, so far I love it. Just wasn t getting consistent results with toner transfer, prolly due to not using a
Precipitate in ferric chloride storage bottle
2010-09-23 by Philip Pemberton
Hi guys. I just dumped the contents of my 2-litre concertina bottle of FeCl3 into my etching tank, and about half way through I was treated to a loud HISSSSS
Re: [Homebrew_PCBs] Re: GBC Laminators
2010-09-23 by freedom2000
considering the final price of the mod (5 €) considering the fact that you don t have to change the motor I would say the same :-) My finished working
Re: [Homebrew_PCBs] Tinning for Photo-resist?
2010-09-23 by Harvey White
... Might be true if you re using through hole stuff exclusively, and large traces. I d still feel better using tinned boards if I were doing SMT stuff. Since
Re: GBC Laminators
2010-09-23 by alienrelics
Machining those side-supports out of fiberglass epoxy isn t looking so bad now, is it? ; ) Steve Greenfield AE7HD
Re: [Homebrew_PCBs] Tinning for Photo-resist?
2010-09-23 by Leon Heller
... I don t bother tinning my boards even if I have cleaned the resist; the very thin film of resist that is left after cleaning it off prevents the copper
Tinning for Photo-resist?
2010-09-23 by acidblue
I read on the MG Chemical site that it s un-necessary to tin a PCB if you use the photo-resist method. Here s the link It s #5 at the bottom of the web page
Re: GBC Laminators
2010-09-22 by sailingto
The laminator is now in stock..... at $229!!!
Re: GBC Laminators
2010-09-22 by alienrelics
Small change, I have the earlier H525, which for some reason seems to cost more. Smaller LCD display seems to be the main difference. Speed 1 is very slow, it
Re: GBC Laminators
2010-09-22 by sailingto
Thanks for info - I read those specs but missed the temperature line.... open my eyes! It s listed as unavailable now, and doesn t seem to have any idea when
Re: GBC Laminators
2010-09-22 by Richard
The specs from the amazon page: Product Features and Technical Details Product Features 4 Silicone Rollers Forward and Reverse Switch Dual LED s Red LED When
Re: GBC Laminators
2010-09-22 by sailingto
What is the max temperature this laminator will do stock out of the box? That forward/reverse and temperature indication sure looks NICE!! I just might order
Re: GBC Laminators
2010-09-21 by Richard
The sensor is mounted on a spring loaded arm, and rides directly on the lower front roller. It looks like a glass bead diode. The arm mount is bolted to the
Re: GBC Laminators
2010-09-21 by alienrelics
Wow! This is the laminator that I just bought for $15 from a thrift store:
Re: GBC Laminators
2010-09-20 by bebx2000
RD, Thanks for the link. The Apache AL13P Professional appears to be a great laminator for the price. Could you elaborate on the placement of the temperature
Re: Eagle: diodes in SOT23 package
2010-09-20 by Don
... Thanks. Diodes,Inc. and ON Semi have the MMBD4148 and/or MMBD914 in SOT23. This package does not seem to be the most cost effective from Mouser, so I will
Re: [Homebrew_PCBs] Re: GBC Laminators
2010-09-20 by Stefan Trethan
There s nothing wrong with it, just as there is nothing wrong with improving something that appears acceptable to others as-is. I like that I only need on pass
Re: [Homebrew_PCBs] Re: GBC Laminators
2010-09-20 by Bob Macklin
I don t understand what is wrong with making multiple passes with these GBC laminators if that works. It only takes me a few minutes to make 8 passes! Bob
Re: GBC Laminators
2010-09-20 by RDHeiliger
Instead of milling new side frames for a $25 laminator, I would recommend buying a $65 laminator that has four rollers instead of two, and has steel frames and
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-20 by freedom2000
right : fiberglass epoxy ! But I did the third one with CEM epoxy pcb (copper side to be removed !) JP ... De: alienrelics À:
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-20 by freedom2000
Don t be ashamed Derrick, we all know that spare time is difficult to find :-) JP ... De: Derryck À: Homebrew PCBs
Re: [Homebrew_PCBs] Etching with Ferric Chloride
2010-09-20 by Leon Heller
... I make up a litre of the FeCl3 solution. I use a small quantity each time, with constant agitation in a small container with an outer container of very hot
Re:GBC Laminators
2010-09-20 by Derryck
... To my shame I haven t modded the laminator yet - I have yet to go to the other side of town to get some bolts or studding to secure the motor. Cheers
Re: [Homebrew_PCBs] Etching with Ferric Chloride
2010-09-20 by Malcolm Parker-Lisberg
Look up Edinburgh Etch, by adding citric acid to the ferric you can make it last a long long time. Malcolm I don t suffer from insanity I enjoy it! ... From:
Re:GBC Laminators
2010-09-20 by alienrelics
To clarify: you mean fiberglass epoxy, as I recall. You used standard PCB stock without copper, didn t you? I was fortunate to find a GBC laminator at a thrift
Etching with Ferric Chloride
2010-09-20 by csit044
Getting back into this after many years absence, and am looking to etch my first simple PCB - the idea is to create the mask via a laser printer on inkjet
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-20 by freedom2000
6.8k should be OK With my 10k trimpot I am now at 6.9k !! But beware that at these temperatures the side walls have e real tendency to melt ... JP ... De:
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by Gokhan Nalbant
Thank you for the valueable information. I have a multimeter with a temperature measument probe. I ll check the rolls to ensure that they are below 195ºC.
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by freedom2000
6;8 k should be OK The best way is to put a trim resistor so that you can adjust easily the value. A friend of mine bought exactly the same GBC as mine, and
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by Gokhan Nalbant
Well, if the laminator can stand that high temperature I prefer this method, since my HP toner needs 170ºC, I suppose. Using thick epoxy gives enough headache
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by freedom2000
Hi, 150+C is definitvely not enough I have climbed up to 190°C (peak) You shoud increase your resistor a bit (7 K ohm) JP
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by Gokhan Nalbant
8 passes! Wow, I see I should try more since I left after the 5th pass. Thank you :) GN 2010/9/19 Bob Macklin ... [Non-text portions of
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by Bob Macklin
Try multiple passes of your board through the laminator. I am using 8 passes with my GSB laminator and seem to be doing OK. Bob Macklin K5MYJ Seattle, Wa.
Re: [Homebrew_PCBs] Re:GBC Laminators
2010-09-19 by Gokhan Nalbant
Hi, I have GBC H65 laminator, I modified it according to the instructions as stated below link.
Re:GBC Laminators
2010-09-19 by jp.gleyzes
Hi, You are right the temperature is to high for the side walls to resist. I have been obliged to mill new ones in epoxy. Here you can find the CAD files if
Re:GBC Laminators
2010-09-19 by rocko
Looks like I ll be getting the LP-120 then, the 4 space won t be a problem for me since all my boards are less than that.
Re:GBC Laminators
2010-09-19 by RDHeiliger
I have had two of the GBC personal type laminators. They work fine for lower temperature toners. After my old Minolta printer with low temperature toner died,
Re: GBC Laminators
2010-09-19 by bebx2000
I use the variable temperature Tamerica LP-120 and it does a fine job tranferring the HP toners at 160 deg. C. I turn it on for about 10 min before use so that
Re: GBC Laminators
2010-09-19 by sailingto
Yep, the 170860 seems to be about the only cheap version left, but at $20 it seems to work ok. I checked the roller temperature and it seems to max out around
Re: [Homebrew_PCBs] Re: Again on tinning!
2010-09-19 by Bob Macklin
I just used hot tap water and the TINNIT works fine. It has no shelf life until mixed. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark ... From:
Re: [Homebrew_PCBs] GBC Laminators
2010-09-19 by Bob Macklin
Try DigiKey: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=182-1031-ND This is the one Pulsar recommends. But it only does 1/32 boards.
Re: [Homebrew_PCBs] Re: Again on tinning!
2010-09-19 by rocko
The other brands like Tinnit you have to mix it up in hot water over the stove. Liquid Tin there isn t any mixing
GBC Laminators
2010-09-19 by acidblue
I see a lot of the Creative 170860 model laminators for sale on the web. But not the Personal model, don t know the model # maybe someone else does. Mouser
Re: [Homebrew_PCBs] Re: Again on tinning!
2010-09-19 by Alessio Sangalli
... Sure but what is the shelf life? I do not make so many boards... and anyway, how can it be easier it works the same way: you have to put the PCB in the
Re: [Homebrew_PCBs] Re: Direct Laser Printing on the cheap
2010-09-19 by Andrew Leech
Well yeah, acetone fumes apparently do a pretty good job, might be a little slower though. Bit more difficult to automate too, you d need a wide tub of the