Re: [Homebrew_PCBs] Choice of Spindle Motors?
2005-04-18 by Roy J. Tellason
... This is interesting stuff, and I even have bits as small as #80 here to try that with... ... Hm. ... So, would feeding a z-axis with a stepper be a real
Messages
Browse messages
Page 538 of 707 · 35337 messages matched
Re: [Homebrew_PCBs] Choice of Spindle Motors?
2005-04-18 by Alan King
... LOL, I think it s more that 95% of people don t have a good clue what they re doing. It takes extremely accurate axial alignment of the drill to the
Re: [Homebrew_PCBs] Re: Dismantling a Microwave Oven WAS:CNC Router
2005-04-18 by Dave VanHorn
... Somewhere around here, I have an article on converting your microwave oven into a video transmitter. Takes a few tubes, output is 500-1500W in the 2.4 GHz
Re: [Homebrew_PCBs] Choice of Spindle Motors?
2005-04-18 by Stefan Trethan
On Mon, 18 Apr 2005 09:53:21 -0400, Bill Blackburn ... i think the greater issue with dremels are the collets. People say it s a gamble each time you change
Choice of Spindle Motors?
2005-04-18 by Bill Blackburn
Hi Guys For the fellows who are mechanically machining their own PCB s, what is the choice of Spindle Motors? How do the RotorZip units work for this
Re: [Homebrew_PCBs] immersed etching
2005-04-18 by Stefan Trethan
On Mon, 18 Apr 2005 09:19:59 +0200, Zoran A. Scepanovic ... I have seen the flexible hose and i know a german supplier of etching tanks uses
Re: [Homebrew_PCBs] immersed etching
2005-04-18 by Zoran A. Scepanovic
Hello Stefan, Monday, April 18, 2005, 12:15:25 AM, you wrote: ST ok, thanks, let me know the findings. the IC tube is a good idea. ST Now if i only had a x/y
Re: [Homebrew_PCBs] Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-18 by Alan King
... Same goes for most paints as well. For the neutral type guys look for the no odor variety. Way more people buy it to not have to deal with the vinegar
Re: [Homebrew_PCBs] Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-18 by Bill Maxwell
After opening a tube of silicone for its first use, try storing the remainder of the tube in the refrigerator. I find it keeps for months. Bill ... From:
Re: [Homebrew_PCBs] immersed etching
2005-04-17 by Stefan Trethan
... ok, thanks, let me know the findings. the IC tube is a good idea. Now if i only had a x/y table or a cnc to get those holes in with some accuracy... ST
Re: [Homebrew_PCBs] immersed etching
2005-04-17 by Alan King
... Yep I d say small to medium at most. I was thinking about picking up one of the tubes, but then it hit me duh I have a drilling machine and .010 drills,
Re: [Homebrew_PCBs] Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-17 by Stefan Trethan
... Well, it isn t actually in permanent contact with any electronics, it must only be non-corrosive to printer parts when fully cured. There are about a dozen
Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-17 by retired0
... presses ... mentioned ... variey ... ~3eur. ... can t ... backing ... place, ... Ok, but I was asking the brand name and part number of the neutral-curing
Re: [Homebrew_PCBs] Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-17 by Stefan Trethan
... Any brand is very similar i assume. It is just normal silicone chaulk, which comes in a big syringe . You should have that tool which presses the plunger,
Re: no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-17 by retired0
... by ... how ... paper ... do more ... ago so ... with ... I pulled the fuser out of my HP4L. Tried printing on various media. One problem was repulsion of
Re: [Homebrew_PCBs] immersed etching
2005-04-17 by Stefan Trethan
... That might actually help, but it seems complicated to me. one would need to drive that pipe a foot down in very agressive etchant. I do not think it is an
Re: [Homebrew_PCBs] immersed etching
2005-04-17 by rruss45826@aol.com
In a message dated 4/16/2005 2:43:25 P.M. Eastern Daylight Time, stefan_trethan@gmx.at writes: I see no way getting big bubbles that are not in streaks, one
Re: [Homebrew_PCBs] no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)
2005-04-16 by Stefan Trethan
On Sat, 16 Apr 2005 13:39:18 -0700, Tobias Gogolin ... i do not think the loose toner would be practical, alignment and all. I remember
Re: [Homebrew_PCBs] How to ajust toner darkness in HP LaserJet 4m plus printer?
2005-04-16 by Tobias Gogolin
Hi folks I am wondering has anone ever tried to disconnect the fuser (the hot chamber the paper runns trough to fuse the toner to the paper? I have notices
Re: [Homebrew_PCBs] How to ajust toner darkness in HP LaserJet 4m plus printer?
2005-04-16 by Stefan Trethan
On Sat, 16 Apr 2005 06:27:02 -0400, microsoftwarecontrol ... What is protecting of lines? always wondered. For the HP4, my HP3 has a green wheel to set the hv
Re: [Homebrew_PCBs] Re: immersed etching
2005-04-16 by Alan King
... How many tens of thousands of dollars did they pay for their equipment? How much does it cost per month to maintain? Do you build a giant conveyor oven to
Re: [Homebrew_PCBs] immersed etching
2005-04-16 by Stefan Trethan
... I ve found such fish bubblers on ebay, despite warnings they fall apart in cucl a small one i tested didn t. The ones on ebay are 30cm long green ones and
Re: [Homebrew_PCBs] immersed etching
2005-04-16 by Alan King
... It ll still be making circulation, but maybe not as good a rate.. ... Unconstrained, bigger probably is better, causing more direct action in the liquid as
Re: [Homebrew_PCBs] immersed etching
2005-04-16 by Stefan Trethan
... Well, too much foam will not be good, if it overflows the container ;-) So far i have noticed foaming is not a problem, the CuCl readily releases the air
How to ajust toner darkness in HP LaserJet 4m plus printer?
2005-04-16 by microsoftwarecontrol
Oki data s led printer gives much better result in protecting lines. But, printer itsself not good in other points. I even can t found a steady working driver
Re: [Homebrew_PCBs] Re: immersed etching
2005-04-16 by Stefan Trethan
... It does work for us, however if i have uneven etch that limits resolution and min. track width as the faster portions get etched more. True i do not really
Re: immersed etching
2005-04-16 by ballendo
Hello, Can I ask a really dumb question? When I visit my board house (they re local and let me tour as I wish; a 900x certified facility) I see ALL their
Re: [Homebrew_PCBs] immersed etching
2005-04-15 by Alan King
... LOL heard that! ... Well I was thinking make more bubbles. If you have enough bubbles 1/4 or 1/2 shouldn t be a problem, more like a circulating foam..
Re: [Homebrew_PCBs] immersed etching
2005-04-15 by Stefan Trethan
... Well, while it sounds like a good idea, it needn t necessarily really work ;-) . I think the bubbles will not stay attached to the board, unless you can
Re: [Homebrew_PCBs] immersed etching
2005-04-15 by Alan King
... Nope, would take some tests. Just a flat plate in the bottom corner leaning in at an angle should give an idea. Just occurred to me off the top of my
Re: [Homebrew_PCBs] immersed etching (was: rotary spay etcher)
2005-04-15 by Stefan Trethan
... It is faster at the bottom, where the bubbles hit. Sloped sides sound interesting, any idea how much? I had streaks from the bubbler-holes, but i m gonna
Re: [Homebrew_PCBs] rotary spay etcher
2005-04-15 by Alan King
... Hadn t been following lately, sure there isn t more to the commercial systems? What s the diameter of the tube? Even 10K RPM isn t much if the diameter
rotary spay etcher
2005-04-15 by Stefan Trethan
Guys, things are looking bad. No matter what i do i just can t get a somewhat uniform spray pattern. I have tried many different hole arrangements and inlet
Re: Eprom Programmer
2005-04-13 by Steve
Please direct all answers off-list. Steve Greenfield ... rather than PCBs. However I m hoping some of the more experianced members can help me with some info
Re: [Homebrew_PCBs] Re: Dismantling a Microwave Oven WAS:CNC Router
2005-04-12 by lists
In article , ... Interesting! About three years ago many cardboard boxes full of floppy disks, there must have been several
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-11 by Stefan Trethan
Hi despite the much better result i still don t get a uniform spray coverage. (i have spaced the holes 2mm and have streaks as far as 12mm apart (which is
Eprom Programmer
2005-04-11 by Sinister Dragon
Hi all, A little off topic I know, Vintage computer electronics rather than PCBs. However I m hoping some of the more experianced members can help me with some
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-11 by Stefan Trethan
SUCCESS!! i glued a small fan or pump wheel into the bottom, with angeled vanes. MUCH more spray at MUCH lower RPM. I think that is the right way to go. ST
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-11 by Ed Okerson
... What about a strobe light? If you can syncronize it to the rotation of the tube at some lower frequency it should make individual droplets more visible.
Re: Maching PCB's
2005-04-11 by grantfair2001
Here are two possibilities: http://www.cnconabudget.com/PaulJonesEngravingCutters.html http://www.thinktink.com/stack/volumes/voli/store/routbits.htm I haven t
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by Stefan Trethan
On Sun, 10 Apr 2005 14:30:31 -0300, Alexandre Souza ... I do not want too much of a mess. When looking at the drops on the inside of the glass one can see how
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by Alexandre Souza
... Spherographic pen ink? Inkjet ink? -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 -
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by Stefan Trethan
ok, after the initial frustration with the sprayer i want to analyze the process in a more scientific manner. Let s revisit how it works. The water enters
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by Stefan Trethan
... ???
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by rruss45826@aol.com
In a message dated 4/10/2005 7:42:07 A.M. Eastern Daylight Time, stefan_trethan@gmx.at writes: Now if i only had food coloring at hand.... ST Non sugar cool
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by Stefan Trethan
... will try.. Now if i only had food coloring at hand.... ST
Re: [Homebrew_PCBs] rotrary spay etcher
2005-04-10 by rruss45826@aol.com
In a message dated 4/10/2005 4:56:29 A.M. Eastern Daylight Time, stefan_trethan@gmx.at writes: How can i better see where the water is spraying and in which
rotrary spay etcher
2005-04-10 by Stefan Trethan
Hi, It doesn t spray very well and i don t know why ;-( What do you think, how can i go about making it work well? I can spin the tube at 10000RPM+ without any
Maching PCB's
2005-04-10 by willybbca
Hi Guys I am new to the list and I am looking for some help. I have a small CNC Milling machine that I would like to machine some PCB s on. I am wondering
Re: [Homebrew_PCBs] Re: Dismantling a Microwave Oven WAS:CNC Router
2005-04-10 by rruss45826@aol.com
In a message dated 4/10/2005 1:06:48 A.M. Eastern Daylight Time, wa4qal@yahoo.com writes: One other thing to be aware of is if any of the microwave ovens used