printing .brd's with 7.0.0 fails

Chuckle, your mother is chasing me, I'll be 80 in October.  But luck is

still me friend, I managed to survive a pulmonary embolism at the end of

May, so now I am on rat poison, and feeling better than I have in a

decade.

and I found 2.5 square feet of DS 2 oz board on Ebay an hour ago for USD

12$, free postal shipping.  I should have it the middle of next week.

I tend to do my own for my onsies projects, in this case a spindle encoder

for a sows ear toy lathe, a 7x12 that was new back in the 90's sometime.

It now has ball screws and a 1 horse motor, all controlled by LinuxCNC.  No

handles left, LCNC does it all. At 0.001" accuracy's these days.

When doing a circuit board on the mill, which also has all screws now, run

by LCNC, I usually drill the thru holes about.045" deep, and drill from

both sides so the holes meet in the middle of the boards thickness. I think

I'm doing good when I can look into the hole with an old 16mm projector

lens for a magnifier, and cannot find a step where the hole pattern was

miss aligned.  And its not my accuracy being tested, its the mills

accuracy.  Worst part is I have no facility to make plated thru holes,

which makes my eagle compositions trickier.  And the traces too darned

narrow too. And I need to find a v-bit for engraving that is even a

narrower angle than the 60 degree bits I have the last of in the machine

right now.  Keeping the board pallet clean so there are no high or low

spots would also help.  So would a constant temp, my Z screw is about 16"

between the nut and the head slider, and in that distance, a 5 degree F

temp change is 4 thou or so at the tip of the bit.  So I load eagles

pcb2gcode output code up with calls to an automatic Z axis re-calibration,

inserted at about 1000 line intervals.  But even that does not help if my

hold-down screws distort the PCB itself because it runs the machine to the

same spot on the board. I'd be better off to machine the pallet for a

vacuum to hold it correctly.  Not impossible of course, but the vacuum is

just more noise I can do w/o.  But I just had another idea on the vacuum

that would be much quieter.  I forgot I had inherited an AC service pump,

and I know that puppy can do better than 29.5" HG.  I used it to complete

the desiccation of a gunstock sized piece of poorly dried maple, and one of

my 50 cal BP's is now wearing it.  Gets the ohhs and ahhs at the range to,

twice, the second time when they look at the target.

I'd better do an Andy Capp here and Saddup.

Cheers, Gene

--

Cheers, Gene

--

"There are four boxes to be used in defense of liberty:

soap, ballot, jury, and ammo. Please use in that order."

-Ed Howdershelt (Author)

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Chuckle, your mother is chasing me, I'll be 80 in October.  But luck is

still me friend, I managed to survive a pulmonary embolism at the end of

May, so now I am on rat poison, and feeling better than I have in a

decade.

and I found 2.5 square feet of DS 2 oz board on Ebay an hour ago for USD

12$, free postal shipping.  I should have it the middle of next week.

I tend to do my own for my onsies projects, in this case a spindle encoder

for a sows ear toy lathe, a 7x12 that was new back in the 90's sometime.

It now has ball screws and a 1 horse motor, all controlled by LinuxCNC.  No

handles left, LCNC does it all. At 0.001" accuracy's these days.

When doing a circuit board on the mill, which also has all screws now, run

by LCNC, I usually drill the thru holes about.045" deep, and drill from

both sides so the holes meet in the middle of the boards thickness. I think

I'm doing good when I can look into the hole with an old 16mm projector

lens for a magnifier, and cannot find a step where the hole pattern was

miss aligned.  And its not my accuracy being tested, its the mills

accuracy.  Worst part is I have no facility to make plated thru holes,

which makes my eagle compositions trickier.  And the traces too darned

narrow too. And I need to find a v-bit for engraving that is even a

narrower angle than the 60 degree bits I have the last of in the machine

right now.  Keeping the board pallet clean so there are no high or low

spots would also help.  So would a constant temp, my Z screw is about 16"

between the nut and the head slider, and in that distance, a 5 degree F

temp change is 4 thou or so at the tip of the bit.  So I load eagles

pcb2gcode output code up with calls to an automatic Z axis re-calibration,

inserted at about 1000 line intervals.  But even that does not help if my

hold-down screws distort the PCB itself because it runs the machine to the

same spot on the board. I'd be better off to machine the pallet for a

vacuum to hold it correctly.  Not impossible of course, but the vacuum is

just more noise I can do w/o.  But I just had another idea on the vacuum

that would be much quieter.  I forgot I had inherited an AC service pump,

and I know that puppy can do better than 29.5" HG.  I used it to complete

the desiccation of a gunstock sized piece of poorly dried maple, and one of

my 50 cal BP's is now wearing it.  Gets the ohhs and ahhs at the range to,

twice, the second time when they look at the target.

I'd better do an Andy Capp here and Saddup.

Cheers, Gene

--

Cheers, Gene

--

"There are four boxes to be used in defense of liberty:

soap, ballot, jury, and ammo. Please use in that order."

-Ed Howdershelt (Author)

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Gene77 wrote:

Chuckle, your mother is chasing me, I'll be 80 in October.  But luck

is

still me friend, I managed to survive a pulmonary embolism at the end

of

May, so now I am on rat poison, and feeling better than I have in a

decade.

Glad you got through that!  I know a couple people who are on the rat

poison, one is younger than me.  I'm on beta blockers and calcium channel

blockers myself, along with diclofenac for the arthritis...

("arth-a-rite-us!")

and I found 2.5 square feet of DS 2 oz board on Ebay an hour ago for

USD 12$

Very nice.  eBay sure seems to have turned into a giant store instead of an

auction house.

I tend to do my own for my onsies projects, in this case a spindle

encoder

for a sows ear toy lathe, a 7x12 that was new back in the 90's

sometime.

It now has ball screws and a 1 horse motor, all controlled by LinuxCNC.

No

handles left, LCNC does it all. At 0.001" accuracy's these days.

Fun!  A thousandth, eh?  Nice.  I used to be a machinist, worked my way up

to general manager of the shop.  At the time, we pretty much had to

maintain .0005" accuracy.  At some point, maybe after I retire, I plan to

get some kind of vertical mill and play with CNC stuff again.

Worst part is I have no facility to make plated thru holes, which

makes

my eagle compositions trickier.

I've often wondered if anyone makes any kind of little grommet that could

be put in a hole and soldered to make a via.  Some day I'll actually get

around to looking.  Maybe you could get some kind of thin tube and cut

rings off with your lathe?  Hmm, could probably use some kind of solid

stock as well if it were small enough.  Might take a lot of heat to solder

though, but you could try solder paste and a griddle or oven...

Keeping the board pallet clean so there are no high or low spots would

also help.

In woodworking, we use router bits with guide bearings.  I wonder if you

could rig up something like that to hold the pcb down...

I'd better do an Andy Capp here and Saddup.

My dad used to love that strip!  I always remember Andy curled up on the

couch asking Pet for things...

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.