> Blind drivers? How many do you need? > We're giving 'em away!
Winston:
Some Calif. drivers seem to be in that condition already. <g>
>> For example, drivers wear a vest with several motors sewn into it. > > Each motor vibrates at a variety of intensity levels.
> How about a back cushion that indicates the presence of obstacles to > the rear and sides? That tailgating Kenworth could give me > a back massage!
We use to do prototype work for "Second Sight", a company that was involved with trying to return a modicum of sight to those that became totally blind. I've drilled 100's of .005" dia. holes in small plastic wafers that supposedly acted like a crude retina, and other related devices. Interesting work.
> Some Calif. drivers seem to be in that condition already. <g>
'Way too many, Bob. I had this fantasy of handing out white canes at stop lights.
Then I realized that many don't even see the stop lights.
(...)
> We use to do prototype work for "Second Sight", a company that was > involved with trying to return a modicum of sight to those that became > totally blind. I've drilled 100's of .005" dia. holes in small plastic > wafers that supposedly acted like a crude retina, and other related > devices. Interesting work.
Cool!
I imagine that in a few decades, we'll understand visual processing in the brain well enough to stimulate the visual cortex directly, to produce full-color, high resolution images.
--Winston <-- Welcome to California. Use your turn signals; go to jail.
Winston wrote: > I imagine that in a few decades, we'll understand visual processing in > the brain well enough to stimulate the visual cortex directly, to produce > full-color, high resolution images.
W:
Yeah, just implanted chips for phone, TV, internet, perhaps increased memory. Maybe even a college education on a chip, eh. Cyborgs-R-Us. Resistance is futile. LOL
>> I imagine that in a few decades, we'll understand visual processing in >> the brain well enough to stimulate the visual cortex directly, to produce >> full-color, high resolution images.
> W:
> Yeah, just implanted chips for phone, TV, internet, perhaps > increased memory. Maybe even a college education on a chip, eh. > Cyborgs-R-Us. Resistance is futile. LOL
"The President's Analyst" James Coburn, Godfrey Cambridge
On Nov 7, 5:43 pm, BottleBob <bottl...@earthlink.net> wrote:
> Winston wrote: > > I imagine that in a few decades, we'll understand visual processing in > > the brain well enough to stimulate the visual cortex directly, to produce > > full-color, high resolution images.
> W:
> Yeah, just implanted chips for phone, TV, internet, perhaps increased > memory. Maybe even a college education on a chip, eh. Cyborgs-R-Us. > Resistance is futile. LOL
Its all in the BIOS, has been for years. Big brother can watch if he wants to, with the "right" commands - no firewall, anti anything can stop it, short of pulling the plug.
"I'm sorry Hal, I cant open the bay doors"
Ah......... the Universe/Modern Marvels on History channel- much more interesting.
>> I imagine that in a few decades, we'll understand visual processing in >> the brain well enough to stimulate the visual cortex directly, to produce >> full-color, high resolution images.
> W:
> Yeah, just implanted chips for phone, TV, internet, perhaps > increased memory. Maybe even a college education on a chip, eh. > Cyborgs-R-Us. Resistance is futile. LOL
Normally for small holes we use carbide circuit board drills with .125 shanks. But for this particular job I used a cobalt .005" drill in a small Albrecht drill chuck so I could hold it stubby. It was only going about 3 diameters deep (.015), in plastic. Programmed it at max RPM (10,000), and .001 pecks, feed at .5-1 IPM Hell we've even MILLED with .005 dia. end mills. LOL
> It was only going about 3 diameters deep (.015), in plastic. > Programmed it at max RPM (10,000), and .001 pecks, feed at .5-1 > IPM Hell we've even MILLED with .005 dia. end mills. LOL
>> It was only going about 3 diameters deep (.015), in plastic. >> Programmed it at max RPM (10,000), and .001 pecks, feed at .5-1 >> IPM Hell we've even MILLED with .005 dia. end mills. LOL
> That is impressive, any way you cut it.
W:
Why thank you.
There is an example of small endmilled slots on the bottom of a cross shaped part on the bottom left picture on the first page of my homepage. I don't remember their dimension after all this time, but they look pretty small. LOL
> >> It was only going about 3 diameters deep (.015), in plastic. > >> Programmed it at max RPM (10,000), and .001 pecks, feed at .5-1 > >> IPM Hell we've even MILLED with .005 dia. end mills. LOL
> > That is impressive, any way you cut it.
> W:
> Why thank you.
> There is an example of small endmilled slots on the bottom of a cross > shaped part on the bottom left picture on the first page of my > homepage. I don't remember their dimension after all this time, but > they look pretty small. LOL
BB your the winner! I thought .007" EM was it, I milled (picked corners) in graphite. I was amazed at how they even can make EM or drill that small! IIRC I broke one just putting in the collet. #80 drills in a pencil grinder for vacuum holes in blow molds-in AL& brass- by hand. TIP: I made a 1/8 collet adapter by drilling & inserting 3 small pins into a .120 disk, naturally stratgically spaced at 120deg.(alot better than wraping shim stock around them- nobody does that!LOL) Lots of holes in vacuum formed cavities. Nice part is if you break one (rarely) just move over a bit & keep drilling. The hard part was re-sharpening them.<g> Think JB's darex with optics will do it? ROFLMAO The other fun part was milling the vacuum slots on the underside. They !should! be within 1/4" of the cavity shape. We did'nt have to much CAD/CAM info at that time, it was hand codeing off "blue prints" Ah....... the smell of ammonia in the design office. = "Gentlemen start your band saws" Damn mold biz. They were always late by the time the prints were released. They designer (IMO his prints were works of art they could be scaled-if the humidity was down) would never let us start till they were "checked" Come on! just sqr. the blocks 1/2" oversize in height. Always height because of unseen shutoffs. Steel's cheap! Time consuming is squaring/water lines/screw holes & KO pins. Damn...... ever build a mold "backwards"? We did. Customer calls me, had the molded parts in his hand out in Iowa- "You built the mold backwards" I've never been so embarrassed in my life! The guys said they could see light thru my ears they were so red.<g> Damn! crisper drawer face for a fridge. So what? if the lettuce can't get air<g> Make it the England model- they are on the left side anyway<g> Could'nt weld that one. High diamond / texure finish cosmetic part would show like a sore thumb. Customer did not want a seem line for an insert, plus water lines right under it. What to do? We fixed it...... its was quite simple .......Any suggestions? Naturally nobody cought it initially , we were under the gun to get- r- done. Outside designer - never got paid, & he was mad! The worst part was the Boss was on vacation & we had to fix it ASAP. Like NOW. Drive to Iowa, bring it back,fix it, drive it back, so not to loose the "very good" customer, all before the Boss gets back= less than 1 week. It was the true meaning of "assholes & elbows" Ah the AutoCad 9 days. What ever happened to 5,6,7,8?hehehe Morel of story: Remember to flip instead of flop!
--
~o~~o~~o~~o~~o~~o~~o~~o~~o~~~o~~
Some people make things happen.... Some watch things happen... While others wonder what had happened
>>> It was only going about 3 diameters deep (.015), in plastic. >>> Programmed it at max RPM (10,000), and .001 pecks, feed at .5-1 >>> IPM Hell we've even MILLED with .005 dia. end mills. LOL
>> That is impressive, any way you cut it.
> W:
> Why thank you.
> There is an example of small endmilled slots on the bottom of a > cross shaped part on the bottom left picture on the first page of my > homepage. I don't remember their dimension after all this time, but > they look pretty small. LOL
cncmillgil wrote: > On Nov 8, 1:30 am, BottleBob <bottl...@earthlink.net> wrote: >> There is an example of small endmilled slots on the bottom of a cross >> shaped part on the bottom left picture on the first page of my >> homepage. I don't remember their dimension after all this time, but >> they look pretty small. LOL
I forgot to add that you can click on the picture to increase it's size.
> BB your the winner! > I thought .007" EM was it, I milled (picked corners) in graphite. I > was amazed at how they even can make EM or drill that small! IIRC I > broke one just putting in the collet.
Gil:
If you got a kick out of .005 end mills, you'll just love the following.
This is a reply by Michael Rainey to a thread I started in 2007.
> #80 drills in a pencil grinder for vacuum holes in blow molds-in AL& > brass- by hand. TIP: I made a 1/8 collet adapter by drilling & > inserting 3 small pins into a .120 disk, naturally stratgically spaced > at 120deg.(alot better than wraping shim stock around them- nobody > does that!LOL) > Lots of holes in vacuum formed cavities. Nice part is if you break > one (rarely) just move over a bit & keep drilling. The hard part was > re-sharpening them.<g> Think JB's darex with optics will do it? > ROFLMAO > The other fun part was milling the vacuum slots on the underside. > They !should! be within 1/4" of the cavity shape. We did'nt have to > much CAD/CAM info at that time, it was hand codeing off "blue prints" > Ah....... the smell of ammonia in the design office. = "Gentlemen > start your band saws" Damn mold biz. They were always late by the time > the prints were released. They designer (IMO his prints were works of > art they could be scaled-if the humidity was down) would never let us > start till they were "checked" Come on! just sqr. the blocks 1/2" > oversize in height. Always height because of unseen shutoffs. > Steel's cheap! Time consuming is squaring/water lines/screw holes & KO > pins. Damn...... ever build a mold "backwards"? We did. Customer calls > me, had the molded parts in his hand out in Iowa- "You built the mold > backwards" I've never been so embarrassed in my life! The guys said > they could see light thru my ears they were so red.<g> Damn! crisper > drawer face for a fridge. So what? if the lettuce can't get air<g> > Make it the England model- they are on the left side anyway<g> > Could'nt weld that one. High diamond / texure finish cosmetic part > would show like a sore thumb. Customer did not want a seem line for an > insert, plus water lines right under it. What to do? We fixed it...... > its was quite simple .......Any suggestions? > Naturally nobody cought it initially , we were under the gun to get- > r- done. Outside designer - never got paid, & he was mad! The worst > part was the Boss was on vacation & we had to fix it ASAP. Like NOW. > Drive to Iowa, bring it back,fix it, drive it back, so not to loose > the "very good" customer, all before the Boss gets back= less than 1 > week. It was the true meaning of "assholes & elbows" > Ah the AutoCad 9 days. What ever happened to 5,6,7,8?hehehe > Morel of story: Remember to flip instead of flop!
You should write an auto-bio, or a book on late 20th century mold making. <g>
>>>> It was only going about 3 diameters deep (.015), in plastic. Programmed >>>> it at max RPM (10,000), and .001 pecks, feed at .5-1 IPM Hell >>>> we've even MILLED with .005 dia. end mills. LOL
>>> That is impressive, any way you cut it.
>> W:
>> Why thank you.
>> There is an example of small endmilled slots on the bottom of a >> cross shaped part on the bottom left picture on the first page of my >> homepage. I don't remember their dimension after all this time, but they >> look pretty small. LOL
> Beautiful work, Bob!
> --Winston
This is old news, and there are much smaller endmills made by someone now, but these Jabro endmills (down to 0.004") were coated and pretty slick:
Ed Huntress wrote: > This is old news, and there are much smaller endmills made by someone now, > but these Jabro endmills (down to 0.004") were coated and pretty slick:
>> This is old news, and there are much smaller endmills made by someone >> now, but these Jabro endmills (down to 0.004") were coated and pretty >> slick:
Yeah. It's hard to believe it can cut. It doesn't look like the core is strong enough -- in fact, it seems to have no real core.
Those Jabro milling cutters were (or are -- I haven't kept in touch with them) a delicate balancing act between core strength and cutting lip, requiring perfect feedrate control to cut without jamming into the core and breaking. They work like real milling cutters, rather than engravers.
> Those Jabro milling cutters were (or are -- I haven't kept in touch with > them) a delicate balancing act between core strength and cutting lip, > requiring perfect feedrate control to cut without jamming into the core and > breaking. They work like real milling cutters, rather than engravers.
Feed control would be easy for folks who can hear the sound of individual molecules being popped out of the matrix. :)
At that scale, swarf is more likely inhaled than tracked into the hallway.
>>> I imagine that in a few decades, we'll understand visual processing in >>> the brain well enough to stimulate the visual cortex directly, to >>> produce >>> full-color, high resolution images.
>> W:
>> Yeah, just implanted chips for phone, TV, internet, perhaps increased >> memory. Maybe even a college education on a chip, eh. Cyborgs-R-Us. >> Resistance is futile. LOL
> But seriously, Bob.
> How the heck do you drill 0.005" diameter holes?
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