OT HardwarestoreCNC contact me?
2003-10-09 by Steve
Could HardwareStoreCNC please contact me? Thanks, Steve alienrelics@yahoo.com polymorph@polyphoto.com
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Re: [Homebrew_PCBs] Re: Plated through holes and rinsing ?
2003-10-08 by Adam Seychell
Hello Markus, Markus Zingg wrote: [delete] ... That makes perfect sense. Only the baths at room temperature can have rinse as part of the main tank.
Re: HomeBrew CNC machine motors
2003-10-08 by Dave Mucha
... and ... drilling ... metall ... NEMA23 ... ask). But ... For a ... kind. ... Excelent project! thanks for showing it to us. drawer slides are a deffinate
Re: HomeBrew CNC machine motors - electronic to drive them
2003-10-08 by Dave Mucha
... DON T ! The Linistepper site offers the schematic and PIC program for free. they offer the parts for sale if you want to take the easy way, or you can do
Re: HomeBrew CNC machine motors - electronics to drive them
2003-10-08 by Dave Mucha
... http://www.schematicsforfree.com/misc_circuits/Controlling_Stepper_Mot ors.pdf
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine motors - electronics to drive them
2003-10-08 by Stefan Trethan
... I see there are dozens of possibilities. But still i want to use the stk6982. I will not give it up without a good reason... If someone has old Philips
Re: HomeBrew CNC machine motors - electronic to drive them
2003-10-08 by roel_cnc
it is pure phase step mode a a- b b- 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 full step mode i think you could put a l297 translator in front for step/dir
[OT] Footprints standars for printed circuit boards
2003-10-08 by Xtian Xultz
Hello folks! Somebody have some documentation from JEDEC or IPC about footprint specs and naming standards? Thanx in advance for any support Best regards Xtian
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine motors
2003-10-08 by Henrik Olsson
Hello, I just created a folder in the photo section called Henrik Olsson and placed a photo of the first CNC machine I made. It worked OK for drilling PCB
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine motors - electronic to drive them
2003-10-08 by Stefan Trethan
... I will not buy a kit/module for stepper control! But i would have these four STK6982 Drivers... They must be suited to drive these motors (they did it
Re: HomeBrew CNC machine motors
2003-10-08 by Dave Mucha
(what stands NEMA for?) National Electrical Manufacturers Association ... YES The nice thing about having a standard for motors, NEMA23 or otherwise is that
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - lubrication - motor
2003-10-08 by Tom Benedict
... Absolutely. ... Give it a try. For what it s worth, moly grease is good for lots of stuff. I didn t have any tapping fluid, and needed to tap about 30
Re: [Homebrew_PCBs] Re: Plated through holes and rinsing ?
2003-10-08 by Markus Zingg
Hi Adam [snip] ... Yes, however the tanks are SEPERATED from each other by a ~1 sized gap. That s needed cause the temperature of the baths must be controlled
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine motors
2003-10-08 by Stefan Trethan
... thank you very much for the NEMA description... forget about the pressed can motors, i have plenty but obviously they are too weak.. but i too have some
Re: HomeBrew CNC machine - lubrication - motor
2003-10-08 by Dave Mucha
... can) ... is ... motors. ... coupled ... spindle ... The first answer is usually a question. what is the size of the load you want to move ? if all you are
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - lubrication - motor
2003-10-08 by Stefan Trethan
I see.. all say: most important: KEEP IT SIMPLE. It just hapens i have some of this Molybdenum grease (in a spray can) here. So i will use it. The motors,
Re: Plated through holes and rinsing ?
2003-10-08 by Steve
... I figured that s what you meant. Use the used, slightly dirty water to prerinse, then into clean fresh water. Steve
Re: [Homebrew_PCBs] Re: dry film and laminator
2003-10-08 by Adam Seychell
... According to the BETE data sheet the NFS12 is the smallest in the series. http://www.bete.com/metric/products/pages/nfs.htm The performance graph of the
Re: [Homebrew_PCBs] Re: Plated through holes and rinsing ?
2003-10-08 by Adam Seychell
Correction, the link to counterflow rinsing is http://www.blackstone-ney.com/04.TP_better_rinsing.php and I also got the liquid levels mixed up, The second
Re: [Homebrew_PCBs] Re: Plated through holes and rinsing ?
2003-10-08 by Adam Seychell
... From what I imagine, you have all the tanks close to each other and you dip the boards in the appropriate order in each bath. Obviously you must rinse
Re: HomeBrew CNC machine - Abrasive Dust
2003-10-07 by Dave Mucha
... as your ... don t go ... uninterrupted ... My T-Tech machines have a fixed vaccuum attachemnt almost touching the cutter. no stray dust ! I agree that
Re: HomeBrew CNC machine - stainless - dies - motor
2003-10-07 by Dave Mucha
I would not recomend modifying a die. they are precicely set and chances are that if you just lubricated it well and ran it along the threads, you would not
Re: Plated through holes and multilayer boards?
2003-10-07 by roel_cnc
chemicals ... Yes please send me that pfd file. P.s. i already started building the units
Re: dry film and laminator
2003-10-07 by roel_cnc
... uv ... get ... some links www.hendor.com for pumps i use m62 6000 liters p/h thats why i use 25 liters of etch and dont forget the anti foam additif or it
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - Abrasive Dust
2003-10-07 by Tom Benedict
... There are two classes of machines in use in industry that can potentially answer this question: One is a surface grinder, which combines very precise ways
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine
2003-10-07 by Stuart Winsor
In article , ... Well obviously, since I ve not seen your plans, I cannot comment on specifics like that, though my own jig was made
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - stainless - dies
2003-10-07 by Stefan Trethan
... guess i give the beeswax a try.... (the budget) have never seen an adjustable die before.. looks like it wants to break if you tighten that screw.. maybe
Re: HomeBrew CNC machine - stainless - dies
2003-10-07 by Dave Mucha
... only not ... ).) ... in a ... I use both rond and hex dies in an ordinary (round or hex) handle, and use both non-adjustable and adjustable. Many of my
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - stainless
2003-10-07 by Stefan Trethan
Thanks a lot... I will try the beeswax method.... and i hope i can locate graphite.... st
RE: [Homebrew_PCBs] Re: HomeBrew CNC machine - stainless
2003-10-07 by Bert Greeley
Stephan wrote - I would also think stainless and brass is much better... It has more to do with metallurgy. The combination of Stainless/Stainless would act
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - Steppermotors, power and number
2003-10-07 by Stefan Trethan
There is another point where i have questions... Which motor power is needed? (i know this depends on the loading of the machine). But i mean in general.. Also
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - stainless
2003-10-07 by Stefan Trethan
... I would also think stainless and brass is much better... Brass is somehow self greasing , if you let run a brass bearing dry it survives much longer than
Re: HomeBrew CNC machine - stainless
2003-10-07 by Dave Mucha
... days ago, ... machine I ... A little more information on this is wanted. I use SS nuts and bolts all the time. some project requrie that. As for the the
Re: HomeBrew CNC machine - pipes books
2003-10-07 by ghidera2000
One book NOT to get is CNC Robotics by Geoff Williams. The descriptions make it sound great for the beginner. The reality is much different. First problem is
Re: HomeBrew CNC machine - pipes books
2003-10-07 by Dave Mucha
Please change the subject line when the topic changes. as you can see, this topic will more than double or triple the list traffic and will make it VERY hard
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine
2003-10-06 by Zoran A. Scepanovic
Hello Stefan, 06. October 2003, 14:05:10, you wrote: ST but be sure i will keep an eye on ebay. Another question, stainless ST allthreads, are they
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Tom Benedict
... On the Lindsay web site, there are some alternative vendors for their books: Camden Miniature Steam Services Barrow Farm Rode near Bath Somerset BA3 6PS
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Markus Zingg
... I can t confirm this. I made the experience that the books by themself often are MUCH cheaper than what you would pay in a local shop here. So, if you
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Stefan Trethan
... I want to get those gingery books for a while now. Simply can t find them at any library and they are not available through the common shops. It s awful.
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Tom Benedict
... There are lots of ways. If people are looking at building a fairly robust machine, take a look at the books by Dave Gingery (published by Lindsay
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Markus Zingg
... I can second this too. I did found another cheap source for good ball bearings that I like to share here - especially for smaller ones. RC cars! Visit a
Re: HomeBrew CNC machine - pipes
2003-10-06 by Dave Mucha
... recommend ... amazed ... engraver ... not ... supports. ... skateboard ... bar (AKA ... can be ... don t ... They ... This ... Skateboard ... dimensions)
Re: [Homebrew_PCBs] Re: HomeBrew CNC machine - pipes
2003-10-06 by Tom Benedict
... I ll second this. If rod is all you can get your hands on, all s not lost. You can cross-drill and tap drill rod, and make your own supports. ... I d
Re: Why I chose "drilling only"
2003-10-06 by Dave Mucha
... same ... I disagree. for a drilling only machine, one could move the board around with a plotter as 100% of the forces are pressing down and withdrawing.
Re: Why I chose "drilling only"
2003-10-06 by crankorgan
Steve, Both a drilling and milling machine for a pcboards are the same machine. The both require the same size,accuracy and stiffness. John ... drill ...
List suggestions for prototyping subjects
2003-10-06 by Steve
... A couple of lists if you are interested in making prototype case designs: http://groups.yahoo.com/group/nwpropmasters/
Why I chose "drilling only"
2003-10-06 by Steve
... I voted for this because I realize that milling a board is not the best method, by far, but that having a machine to automatically drill means less of my
Re: New poll for Homebrew_PCBs
2003-10-06 by Dave Mucha
... your ... do ... mill for ... with ... machine). ... money for ... If you could build an X/Y table for your drill for under $100.00 and in one weekend,
Re: [Homebrew_PCBs] Re: New poll for Homebrew_PCBs
2003-10-06 by Stefan Trethan
On Mon, 06 Oct 2003 12:08:20 -0000, Dave Mucha ... cool think this poll. You are right with absolute minimum cheap etc. but i think
Re: PCB-CNC Design - Note from moderator
2003-10-06 by Steve
... I agree. Long ago I even put some folders and links in the Links page: PCB and CAD Programs and Milling/Engraving Method. A link to TurboCNC is in the PCB