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2011-04-01 by David C. Partridge
There s not much to see really, apart from a possible shot of a completed roller which would be pretty boring. However, I do need to re-do the rollers as the
2011-03-31 by tda7000
Sounds good! Do you have photos?
2011-03-31 by David C. Partridge
SUCCESS!!! I couldn t get a PFA heat shrink, and the prices are pretty horrific anyhow, so I came up with a Plan B . I purchased a 5 meter length of Croylek s
2011-03-31 by Dave Sage
Great, thanks. I ll pass it along and see what he thinks. His problem is that his business partner used to do the conversion for him with a program (that did
2011-03-30 by Paul Mateer
This may help... http://www.sonnetsoftware.com/support/sonnet-suites/dxftogerber.html ... -- Paul Mateer, AA9GG Elan Engineering Corp. www.elanengr.com NAQCC
2011-03-30 by Dave Sage
He didn t ask for opinions on PCB layout software. This guy is 80 something years old and has been making boards forever and with AutoCad as long as it s been
2011-03-30 by John
I picked up a pair of Kepro bases - one set up as a 12 shear with an extra 90 degree blade and the other set up as a bender. I did all sorts of Google
2011-03-29 by tda7000
Maybe it s time for him to learn a real EDA program? I can see the advantage of a normal CAD, you aren t limited by the constraints a PCB layout software may
2011-03-29 by tda7000
You don t need to cut a slot out. It may give more strength I guess but I haven t had a good reason to do that. When making my own boards I always drill a hole
2011-03-29 by GB
Hi to all, Long time lurker here. I need to make a pcb with led s (128 pcs), but that pcb must have a special form - designed first in Rhino v4.0 (cad
2011-03-29 by David C. Partridge
I think I know what I need, the problem is getting it. The suppliers I ve found so far either want huge MOVs or don t stock the size :-(. What I want is 3
2011-03-29 by Dave Sage
Has anyone ever seen a FREE DXF to Gerber converting program. My friend has been successfully making circuit boards with AutoCad for several years and has been
2011-03-29 by H. Carl Ott
... on DS. I try for the smallest possible hole and the maximum amount of copper for the pad. Bonding of the copper to the board comes from the adhesives of
2011-03-29 by Chris Kleeschulte
I have not quite made the jump to SMD s. I am still toiling with through hole parts. Using pcb in a box toner transfer method has worked wonders for the
2011-03-29 by David C. Partridge
I m making progress on the high temp. sleeving. I will update the list as and when. PS A good Google search is high temperature heat shrink sleeving D. ...
2011-03-28 by Andrew Hakman
Pretty sure the heater is actually a large halogen lamp, that runs at line voltage (hence why there are 120V fusers, and 220V fusers). Andrew ... [Non-text
2011-03-28 by mlerman@ix.netcom.com
I m sure it has been done. Just add a mechanical crank and a temperature controller using the built in thermistor and the built in heater (probably 24 VAC) and
2011-03-28 by Erik Knise
I ve looked around only before but haven t seen anything. Also high temp laminator doesn t return man useful search results. I know some people have tried
2011-03-28 by leeleduc
I m not panelizing a single design. I m putting different designs together into a single gerber file.
2011-03-28 by Erik Knise
... As long as they only diluted your nail polish remover and not your 18 y/o Scotch you should be ok! Do you find it cheaper to buy acetone in the form of
2011-03-28 by Piers Goodhew
Etched my first board tonight in a long time - for various reasons (toner s getting low, it s an odd shape) I touched up a few spots with nail polish and then
2011-03-28 by leeleduc
Thanks for the replies. Dorkbot is ideal for my students.
2011-03-27 by tda7000
This won t work for multiple designs unless they were all created in the same file (and that would cause headaches) but when I want multiple copies of the same
2011-03-27 by dubob4432
another vote for dorkbotPDX :) have been very happy with them. the board quality is excellent and laen (james) is excellent to work with. i have gone down
2011-03-27 by bebx2000
I posted this a while back relative to toner adhesion and cleaning boards, http://tech.groups.yahoo.com/group/Homebrew_PCBs/message/26984 It did not create
2011-03-27 by bebx2000
David, I have a Tamerica LP-120 laminator with a temperature dial. I set it to 160 deg C (max temperature). I let it stabilize for 15 min. and then laminate
2011-03-27 by Kerry Wentworth
Rather than merging boards, consider this: http://dorkbotpdx.org/wiki/pcb_order You get 3 copies of a board for $5 per square inch, no setup fees, no shipping
2011-03-27 by Terry Gray
Which layout software are you using? Some of the pcb layout software allows panelization of a design. Eagle, for instance, has a ULP to do this. ...
2011-03-27 by leeleduc
I would like to merge multiple PCB s into a single gerber file so I can get more than one PCB layout onto a board. Does any one know of a program other
2011-03-26 by David C. Partridge
The technology for high temperature rollers exists as fusers run at temperatures above 200C, and in some cases at lot above that. The rollers on this laminator
2011-03-26 by David C. Partridge
What temperature do you have your laminator set to please? If it is within the range of my good laminator, I may just buy a 1320 just for PCB work. D.
2011-03-26 by David C. Partridge
I reverse engineered the thermostat circuit in one of the laminators which was based on the Vf of 1N4148 diode as the temperature sensor. I made some small
2011-03-25 by mlerman@ix.netcom.com
I m still investigating this machine, and I think I can modify it, but it is going to take a lot of work and thought. The plan is to make it possible for the
2011-03-25 by tda7000
Given the right equipment and resources I reckon it would be better to produce a direct-to-PCB-printing ..printer.. from the ground up. Toner might be best,
2011-03-25 by joe lobocki
I can say he is right, it would take a lot of effort, I use one right now for regular paper printing and it is picky enough for that, its got quite a few
2011-03-25 by Mark Lerman
Well, there is not enough space between the drum and the Transfix Roller to pass a thick pcb. I would have to replace the cams that raise and lower the
2011-03-24 by Herbert E. Plett
170 degrees is too low should be over 200, a good iron in linen position goes up to 240 and works well.
2011-03-24 by piers@u-h-p.com
I ve read they re great for making fpc s ... my previous employer had one and I can certify only that they re 100 no good for traditional toner transfer
2011-03-24 by Mark Lerman
A couple of people on the list have mentioned using Xerox solid ink printers to make pcbs, so I thought I d take a look. These machines print by depositing
2011-03-24 by David C. Partridge
I would imagine that those both run their fusers at a lower temperature than the 4000 series, so the fact you ve not had problems isn t a surprise. Dave ...
2011-03-24 by bebx2000
I use two Hp Laserjets, a 1320 and a 1102W and never have a problem with the toner fusing. The latter is a cheap wireless that routinely goes on sale for $99
2011-03-24 by Andrew
There is one good way to find out -- run some samples and let us know the results! If you have not yet done so, check out the direct inkjet printing group
2011-03-24 by serge.vereecke
I have a an old BJC-5100 from Canon of which the normal paper-feed mechanism for the stock A3-paper is busted but there is a manual feed slot below it that
2011-03-24 by tda7000
I would assume this is not so, the printer is probably fixed at a certain temperature and using other toner would cause problems. (I may be entirely wrong) I
2011-03-24 by David C. Partridge
I did find out from the HP LJ4050 manual that its fuser operates at 400F (205C), so not too much above where my laminator works. Regards, David Partridge ...
2011-03-24 by David C. Partridge
Oh bother! I really don t want to have to buy another laser printer! Does anyone know if there is a lower melting point toner (another brand perhaps) that
2011-03-24 by Al Berntsen
See if you can slow the feed rate thru the laminator.I use the release lever to stop the feed every quarter inch or so to allow the PCB to heat
2011-03-24 by RJ
I tried our newer HP laserjet printer at work and its a no go getting the toner to stick well. Gave up and used our newer Canon instead ..
2011-03-23 by tda7000
I have tried the transfer with cleaning the boards and without and I couldn t see much of a difference. Sounds to me like the Toner you are using has a higher
2011-03-23 by kabowers@NorthState.net
... To prepare a board for toner transfer I ve had good results by first giving the board a really good scrubbing with green Scotchbrite and dishwashing