Re: Yag laser?
2003-06-18 by John Myszkowski
You may be right. The relevancy does seem to stretch a bit thin here... :) OKay I will e-mail directly if I have any more questions. Thanks for the info and
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Re: Yag laser?
2003-06-18 by twb8899
John, I agree with you about the odor in a circuit board plant. The dry film laminator was the odor that bothered me. We had all kinds of vents and fume
Re: Interesting UV exposure system
2003-06-18 by John Myszkowski
I don t get out much = I don t actually talk much on the air ... John M... ... even ... useable ... stuff.
Re: [Homebrew_PCBs] Re: Interesting UV exposure system
2003-06-17 by Leon Heller
... From: John Myszkowski To: Sent: Tuesday, June 17, 2003 4:37 PM Subject: [Homebrew_PCBs] Re:
Re: Yag laser?
2003-06-17 by John Myszkowski
Hi Tom, I used to work at a job shop too at one time, for a few years. Many years ago and for someone other than myself, but I learned quite a bit. The owner
Re: Interesting UV exposure system
2003-06-17 by John Myszkowski
Hey Leon, I just noticed, G1HSM. You re a Ham, somewhere in Britain? Me too; VE3EEE. The ... after my name is a short for EEE . I don t get out much. I
Interesting UV exposure system
2003-06-17 by Leon Heller
I just came across this site which has a description of an interesting commercial (and expensive) UV exposure system:
Re: [Homebrew_PCBs] Help Needed
2003-06-17 by Jan Kok
I m not very familiar with ladder diagrams, but my impression is that they are used to draw circuits made up mainly of switches, relays and loads, and the coil
Re: Yag laser?
2003-06-17 by twb8899
... nozzle ... John, I spent over twenty years in the printed circuit business as a commercial shop. We made all types of rigid boards up to ten layers and
Re: [Homebrew_PCBs] Help Needed
2003-06-17 by Ron Amundson
I used a plug in for Autocad years ago. It allowed for Ladder Logic drawing, created nets, wire lists, the whole works. If I remember it was around $1000, but
Re: [Homebrew_PCBs] Help Needed
2003-06-17 by Hans Wedemeyer
Bill, Not sure I understand the Ladder thing... Do you mean several circuits on more than on page with transitions between pages ? I can recommend EAGLE.
Help Needed
2003-06-17 by wanliker@aol.com
I am new to this group, and would like to ask for some help. I have gone thru the first 1000 subjects, and have a list of PCB drafting downloads to pursue. I
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-16 by Adam Seychell
... Yes, more parallel to the axial. here are some links that might help. http://www.efunda.com/DesignStandards/bearings/bearings_tapered_roller.cfm here is a
Re: Yag laser?
2003-06-16 by John Myszkowski
Thanks Tom, That is very useful info. I think I will make a compressed air nozzle for my laser cutter. Do you make PCB s for yourself or commercially? John
Re: Yag laser?
2003-06-16 by twb8899
John, The cones on our machine were just long enough to accept a screw in nozzle that put the gas or air output in the focal plane. The screw in nozzle was
Re: Yag laser?
2003-06-16 by John Myszkowski
Hi Tom, I wouldn t mind the thinner kerf, also the power/area would increase as well I suppose. The air funnel idea is a good one. I ve been thinking of
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-16 by Stefan Trethan
@adam on more question to tapered roller bearings: are they encased by the bearing shells like thrust bearings? so that they are ready to use? i saw some on
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-16 by Adam Seychell
... [cut] ... The collets on the industrial tools I ve seen are all precision ground hardened steel, exactly as you describe. I haven t measured the round out,
Re: Pivoting drill press
2003-06-16 by twb8899
Adam, I like your drilling machine. If you flipped it over and put an optical scope and air clamping foot on it you would have almost the same machine John is
Re: Yag laser?
2003-06-16 by twb8899
John, If the 30 lens is working don t change anything unless you really need a finer cut. The 5 lens will have a smaller kerf width which would help with
laptop drill press
2003-06-15 by jankok5
I uploaded a picture of my laptop drill press to the photos section. Mr. Moderator, maybe you can move that picture, and the following text, to the files
Re: Pivoting drill press
2003-06-15 by John Myszkowski
Hi Adam, Nice little machine. How do you keep the drill bit perpendicular (90degrees) to the PCB? The laser may be a bit too bright after a while. You will
Re: Yag laser?
2003-06-15 by John Myszkowski
Thanks Tom, That was very informative. I only have a 30 fl lens for my CO2. I have good results with cutting .125 pvc, acrylic and similar materials. I don t
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by Larry Battraw
Hi Adam, I ve tried using the cheap red laser diodes from pointers and have had very bad luck. Like Leon mentioned, the spot is not a circle (although you can
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-15 by Russell Shaw
... A laser cutting place near me has an x-y machine about 3m wide, 10m long, and 4-5m high. The laser is in a hut about 2m long, and the laser looked about
Re: Yag laser?
2003-06-15 by twb8899
... steel/brass/aluminium? ... I had a Mitsubishi CNC Laser for several years and have some knowledge of how they work. This machine was a model 1212HC with a
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by Stefan Trethan
On Sun, 15 Jun 2003 18:58:14 +1000, adam Seychell ... **** 1) motor: yes the proxxon ibe bohrschleifer is a good device (eur 100). they have also a english
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by adam Seychell
... Lowest cost I ve seen would be something like the trimmers/die grinders you were looking at. That s the first time I ve heard of trimmers. The trimmers
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by Russell Shaw
... I haven t got a motor yet. I was thinking of using a cheapy motor to drive my own shaft with lower slop bearings. A quick search seems to show
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by adam Seychell
... The motor is a Bosch die grinder (model gss27), 27000 RPM. i.e. you normally put a stone or carbide die in the collet and grind away at metal or whatever.
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by Russell Shaw
... Looks like a laminate-cutter motor. I m putting one of those on my x-y machine.
Re: [Homebrew_PCBs] Pivoting drill press
2003-06-15 by Leon Heller
... From: adam Seychell To: Sent: Sunday, June 15, 2003 8:27 AM Subject: [Homebrew_PCBs]
Pivoting drill press
2003-06-15 by adam Seychell
Hi I ve taken some pictures of my new PCB drilling machine, and made them available online at http://home.alphalink.com.au/~seychell/drill_MkII.html Hope the
Re: Yag laser?
2003-06-15 by John Myszkowski
*** Sorry for the departure from the main topic which is PCB making in a home environment... but this had to be answered. Anyway, I do believe that lasers
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-15 by Russell Shaw
... What power CO2 laser do you need for cutting 3mm steel/brass/aluminium? I ve got a two-stage pump that can go to 10^-4 torr. I m designing a cnc x-y
Re: Yag laser?
2003-06-14 by John Myszkowski
Amazing, isn t it... John M... ... PTHs)
Re: Yag laser?
2003-06-14 by John Myszkowski
I guess it depends on the age of the boys and the price of their toys...? :) Lasers are one of my hobbies, or at least they used to be. The lasers I used were
Re: Yag laser?
2003-06-14 by yildirimalper
Hi It says 30,000 holes/minute in the Hitachi web site. Is it really possible. I can not even imagine. That is 500 holes/second Best regards, Alper ... and ...
Re: Yag laser?
2003-06-13 by anode505
Yes, that was the reason of my post. I asked about Yag, since it is do-able at home and is more copper freindly then a CO2. But I guess it will remain on the
Re: Yag laser?
2003-06-13 by anode505
Well I doubt you d find an industrial laser milling and drilling a PCB. Just not that practical. The current standards work fine. EPA is the only real prob.
Re: Yag laser?
2003-06-13 by crankorgan
John, But the whole idea is not at the hobby level. Anything is possible with big bucks. I think the original question was directed at a hobby process that can
Re: Yag laser?
2003-06-13 by John Myszkowski
When the copper is coated on the surface, then it can be cut by laser. The heat of the vapourized coating material helps cut the copper if thin enough. In the
Re: Yag laser?
2003-06-13 by crankorgan
Stefan, That s why I posted the link! Why would they just make a laser drilling machine when they could also mill. The answer is using a laser to mill is a
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-13 by stefan_trethan@gmx.at
yes, yes.... but on http://www.hitachidigital.com/laser.html there is a co2. so i assume it only drilles boards (which i think the text ob this page says). so
Re: Yag laser?
2003-06-13 by crankorgan
Stefan, Lasers can cut, drill and engrave. I mill circuit boards. What saves me is the Mechanical Etching Bit has a tip that is triangular. Any variation of
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-13 by stefan_trethan@gmx.at
... really nice thing... but seems they also don t drill the copper - they use co2 laser... i wonder how it is possible to drill the resin and the glassfibers
Re: Yag laser?
2003-06-12 by crankorgan
... and ... Here is a high speed PCBoard drilling machine that uses a laser.http://www.hitachidigital.com/laser.html John
Re: [Homebrew_PCBs] PROXXON Drill IB/E
2003-06-12 by stefan_trethan@gmx.at
thanks.. please make photos of it as soon as possible... are this the main wheel bearings in a car? may i take them out of a old axle? regards stefan -- +++
Re: [Homebrew_PCBs] PROXXON Drill IB/E
2003-06-12 by Adam Seychell
... [snip] That s good news, thanks for updating the group about the Proxxon. I have just completed version 2 of my PCB drilling press. This one is takes up
[Homebrew_PCBs] PROXXON Drill IB/E
2003-06-11 by stefan_trethan@gmx.at
Hi! Today i finally got my Proxxon Minidrill. It is a really fine tool, i believe it is really precision work. they advertise with the following: High