Re: [Homebrew_PCBs] Re: Sensitizing PCBs yourself with a spray can
2004-03-19 by Russell Shaw
... Make sure the copper is totally free of oil or the PRP will go to crap. Water should not bead on the surface.
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Re: my TT technique and some pix
2004-03-19 by Phil
Interesting question. I think its pretty much an insulator since it gets picked up via static electricity prior to fusing. I think a conductor would have
Re: Fine soldering iron
2004-03-19 by gk_impala
Hello Stefan, Steve, The way compressed air is used to dispense a paste, is to use a two- way valve or two valves. First the valve is on comperssed air for a
Re: Sensitizing PCBs yourself with a spray can
2004-03-19 by joshdewinter
YYEEAAAHHH...that was the stuff: Electrolube PRP200. Thanks. It seems like it would be an easy solution for the quick production of accurate boards. If it
Re: my TT technique and some pix
2004-03-19 by ballendo
Phil, Thank you for a really detailed useful post! One question: Do you worry about the conductivity of the toner screen print ? Seems that it could be an
Re: my TT technique and some pix
2004-03-19 by Phil
yes, that is exactly how I do it. Alignment is critical. some things I ve found that help: I use full 8.5x11 sheets for each side - it makes it easier.
Re: [Homebrew_PCBs] Sensitizing PCBs yourself with a spray can
2004-03-19 by David Hopkins
Josh, Try the product made by Electrolube. http://www.electrolube.co.uk/index.shtml This product has been use in this part of the woods with reasonable
Re: my TT technique and some pix
2004-03-19 by joshdewinter
... Hi. I m trying to perfect my double-sided boards. How do you make your double sided boards? Do you line them up, tape them together, insert the board in
Sensitizing PCBs yourself with a spray can
2004-03-19 by joshdewinter
I saw a site a while back where a guy was using a PCB sensitizing spray in a can. It was from Europe...I can t remember what it was called...GPC or something.
Re: [Homebrew_PCBs] PDB teching bits
2004-03-19 by Cristian
Google for diamond burnishing bits Cristian ... [Non-text portions of this message have been removed]
New file uploaded to Homebrew_PCBs
2004-03-19 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
New file uploaded to Homebrew_PCBs
2004-03-19 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
Re: my TT technique and some pix
2004-03-19 by Phil
It sounds similar. For wood projects I use 100, then 180, then 220. sometimes 320 for really fine stuff. 220 is a bit too coarse for substrate prep but its
Re: [Homebrew_PCBs] my TT technique and some pix
2004-03-18 by Stefan Trethan
I wonder if the grit is the same in your country as in mine. i think it is some peaks per area reading so i guess it is different between metric and
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-18 by Stefan Trethan
... Yes i did build it, no i don t have the schematic anymore. Back engineering would work, it is not too hard. it used a triac to switch the current, and
Re: PDB teching bits
2004-03-18 by sciciora
www.CNCOnABudget.com You get a free re-ground drill bit, ground into an engraving bit, with each spindle purchase. I have not tried it, but it looks like
my TT technique and some pix
2004-03-18 by Phil
After trying lots of paper and making a few boards with magazine paper, I found just the right paper and a good technique. I m very pleased with the results
Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-18 by Stefan Trethan
... I m not going to say i told you ... ;-) I d try the red ink anyway... ST
Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-18 by pebo festus
I never did hear back from staedtler inks after i related what i was trying to do--i guess i am not a big enough fish. meho
Re: PDB teching bits
2004-03-18 by Dave Mucha
... Paul of CNC on a budget. http://www.cnconabudget.com/PaulJonesEngravingCutters.html $4.00 for a single flute engraver. Seems he re-grinds old bits to get
Re: PDB teching bits
2004-03-18 by ghidera2000
Damned if I can remember the name but, one of the guys on the caddamdro list sells home made z-axis spindles (quite nice looking really). When I was perusing
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-18 by Johnathan Corgan
... Yep. The solder blob swipe technique works especially well when there is a solder mask layer on the board, I never seem to get bridges. Without the
Re: Fine soldering iron
2004-03-18 by Steve
... Did you build the temperature control part, then? ... i will ... I really like the idea of a slide-through oven with a pre-heat chamber. ... the tip. ...
PDB teching bits
2004-03-18 by Dave Mucha
Hi all, Still looking for those small etching bits for engraving boards. T-Tech wants $15.00 a pop for them and it seems there is no one that sharpens them.
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-18 by Stefan Trethan
Well, i have a ERSA 60W 24V iron with a homebrew station, it measures the temperature in the heating element by it s resistance. nut the best method, but it
Re: Fine soldering iron
2004-03-18 by ghidera2000
I m with the majority here. I started out with an economy soldering iron and very quickly regretted it. Thing took centuries to heat up and lost temp very
Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-18 by pebo festus
ok sefan-- just seen the name on a diffrent bb, thought it might be you. mebo ... http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc ...
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-18 by Ron Amundson
Pace has some newer rework stations. Their rework units are probably half as good as Metcals, and about 30% of the price. I wonder if they have a soldering
Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-18 by Stefan Trethan
... Oh, thanks... It is only i do not remember ever needing that manual? Maybe i did forget it simply. Now i do not feel the need to read that manual, if you
Re: Standard inkjet inks for etch resist?(kx p2123 printer)
2004-03-18 by Steve
If you put on either side of it, it should work (even if it looks broken).
Re: Fine soldering iron
2004-03-18 by Ben H. Lanmon
... Believe they call it Iron Clad. If you break the coating the tip will not last long. I use to use the copper tips in my old Ungar (now owned by Weller)
Re: Fine soldering iron
2004-03-18 by Ben H. Lanmon
I have several of the Hakko stations some ESD models and some standard, they work great. If you do much work spending the extra money on a Hakko or other type
Re: Standard inkjet inks for etch resist?(kx p2123 printer)
2004-03-18 by pebo festus
oops the link didnt work---but the manual is online. ... p2123?- ... for ... http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc ...
Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-18 by pebo festus
stefan-- are you still looking for a manual for a panasonic kx p2123?- - if so here is a link. i just came by one and it looks promising for pcb, has bottem
THP line questions was Re: Welding PVC - OT
2004-03-17 by ballendo
Thank you. Ballendo ... sheets ... http://photos.groups.yahoo.com/group/homebrew_pcbs/lst?.dir=/impala&.s ... lenses ... test ... work ... Patent ...
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-17 by Stefan Trethan
... I meant it is not popular because iron is normally not what you want to make a surface, it is what you have in most cases.. I would like it for special
Re: Fine soldering iron
2004-03-17 by Phil
a new tip doesn t cost that much, that s probably why. ... maybe ... the ... much ... make that
Re: Fine soldering iron
2004-03-17 by javaguy11111
I have done several boards using solder paste and a cheap, non convection toaster oven. My most recent was a LQFP176. I have not lost a chip yet to excessive
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-17 by Stefan Trethan
... I agree totally on this. bare copper tips are horrible... there is solder with 2% copper in it out there, with that they last much longer. Has anyone
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-17 by Stefan Trethan
... No i haven t done it on tqfp, only smd transistors and one 8 pin... I used a professional oven then. I described it some time ago, it seems very simple to
Re: Fine soldering iron
2004-03-17 by Phil
every tip I ever ground wound up with massive pits in it after maybe 2 hrs of total soldering time. My hakko has got probably 10X that time and after one wipe
Re: [Homebrew_PCBs] Re: Fine soldering iron
2004-03-17 by Jeremy Taylor
I was just trying to keep him in budget. Grinding a tip, then using a quality tip tinner has served me well in the past, but alas these day I m with you guys.
Re: Fine soldering iron
2004-03-17 by Steve
... Have you done this yet? I ve followed the EZ Bake list and it s not so simple. To get repeatable results, you need a time and temp controlled oven that can
Re: Fine soldering iron
2004-03-17 by Steve
... ... I agree. A ground down tip will be bare copper, which will get eaten away by the solder very quickly. And if you pay a bit too much for a tool that is
Re: Royal PL2000 laminator
2004-03-17 by Steve
Thanks. Yes, I suspect it is there to cool the laminate and keep it flat while it s cooling. Obviously not necessary for PCBs. I did have it open already, had
Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-17 by Stefan Trethan
On Wed, 17 Mar 2004 06:30:15 -0800 (PST), pebo festus ... I would have guessed it does work. there is a optical sensor for the paper edge in
Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-17 by pebo festus
with the experence i have had with the II, it will not work,the the roller feed IMHO is just to sloppy.but you might find a work around. i have got to get the
Re: [Homebrew_PCBs] Royal PL2000 laminator
2004-03-17 by Stefan Trethan
... Well, there are only a handful of printers in the database, and much more will work, do if you get a different one and it works it is a addition to the
Re: [Homebrew_PCBs] Fine soldering iron
2004-03-17 by Stefan Trethan
... Why not apply paste and bake it in the oven? much quicker... I was told metcal is the ultimate manufacturer for smd irons, maybe you can find one at
Re: Fine soldering iron
2004-03-17 by Phil
that s certainly one approach. I think you will find a ground tip wont last that long. I went through a succession of cheap irons and finally got a