I just found, for 7/8" R8 collet, made in Korea (doesn't claim N or S)
says .0005 TIR, better than most for this project, so now I can keep 3
of them preloaded. Just under $8/copy.
I don't know if they are fibbing, or actually trying to take away some of
that business from the Chinese. We'll s
you can find 6mm long in three different types of socket heads at
www.boltdepot.com
best regards, Steve Thatcher
-Original Message-
>From: Gene Heskett
>Sent: Mar 31, 2018 12:32 PM
>To: emc-users@lists.sourceforge.net
>Subject: [Emc-users] looking for M5mm x .8 5mm long screws
>
>And I
On Saturday 31 March 2018 19:26:53 Chris Albertson wrote:
> Gene,
>
> "MonsterBolts" on eBay has M5x.8 at 6mm long in grade 12.9 alloy steel
> Only 1mm longer than you wanted About $8 for a box or 50. see item
> 112016494139
> I've been buying hardware and these guys seem to always have what I
On Saturday 31 March 2018 16:00:36 Greg Bernard wrote:
> I always check good old McMaster-Carr first:
> https://www.mcmaster.com/#standard-socket-head-screws/=1c7o6zf
>
I did too, struck out, nothing smaller in socket-head metric than
6mm.8x12mm long.
> On Sat, Mar 31, 2018 at 2:32 PM, Gene Hesk
On Saturday 31 March 2018 15:55:22 andy pugh wrote:
> On 31 March 2018 at 20:32, Gene Heskett wrote:
> > And I don't seem to find any shorter than 10mm.
> >
> > 5mm long would be a great plenty.
>
> Can you use 6 long?
> https://www.ebay.com/itm/112016494139
> He list 5mm long but is out of stock
On Saturday 31 March 2018 15:52:53 Ken Strauss wrote:
> I assume that you want SHCS? I'm not sure about 5mm but M5-0.8x6 is
> readily available:
> https://www.fastenal.com/products/fasteners/sockets/socket-cap-screws?
>term=s
> ocket+head&r=~%7Ccategoryl1:%2260%20Fasteners%22%7C~%20~%7Ccategor
Gene,
"MonsterBolts" on eBay has M5x.8 at 6mm long in grade 12.9 alloy steel
Only 1mm longer than you wanted About $8 for a box or 50. see item
112016494139
I've been buying hardware and these guys seem to always have what I want.
On Sat, Mar 31, 2018 at 3:58 PM, Gene Heskett wrote:
> On Satu
On Saturday 31 March 2018 15:51:19 Martin Dobbins wrote:
> Hi Gene,
>
>
> McMaster Carr carry a wide variety of M5 screws in various lengths.
> 6mm is the shortest I could find on a quick search.
>
>
> https://www.mcmaster.com/#standard-flat-head-screws/=1c7o3c3
>
Wrong screw type, need socket he
On Saturday 31 March 2018 15:45:25 Mark Johnsen wrote:
> Gene,
>
> Mcmaster has 6mm long M5 screws:
> https://www.mcmaster.com/#socket-cap-screws/=1c7nxzi
> MSCDIrect also has 6mm: https://tinyurl.com/yas6ujlh
> Not sure that link will work.
>
> I was surprised they didn't have 5mm.
>
> Mark
>
Ho
On Saturday 31 March 2018 15:43:41 Kenneth Lerman wrote:
> https://www.mcmaster.com/#standard-socket-head-screws/=1c7nzv5
>
> McMaster has them -- stainless only.
>
> Ken
>
Stainless=too soft. Darn it.
> On Sat, Mar 31, 2018 at 3:32 PM, Gene Heskett
wrote:
> > And I don't seem to find any shor
On Saturday 31 March 2018 15:32:02 Gene Heskett wrote:
> And I don't seem to find any shorter than 10mm.
>
> 5mm long would be a great plenty. This is to be installed in the side
> of a 7/8" diameter slug, with about 1/2 the head buried in the slug,
> and the other half to stick up into a cutout t
Hi Gene,
McMaster Carr carry a wide variety of M5 screws in various lengths. 6mm is the
shortest I could find on a quick search.
https://www.mcmaster.com/#standard-flat-head-screws/=1c7o3c3
Martin
And I don't seem to find any shorter than 10mm.
5mm long would be a great plenty. This is
On Sat, Mar 31, 2018 at 12:43 PM, Kenneth Lerman
wrote:
> https://www.mcmaster.com/#standard-socket-head-screws/=1c7nzv5
>
> McMaster has them -- stainless only.
>
Makes sense as there is no point in making a short screw in alloy steel,
the softer stainless would give full strength of the engag
https://www.mcmaster.com/#standard-socket-head-screws/=1c7nzv5
McMaster has them -- stainless only.
Ken
On Sat, Mar 31, 2018 at 3:32 PM, Gene Heskett wrote:
> And I don't seem to find any shorter than 10mm.
>
> 5mm long would be a great plenty. This is to be installed in the side of
> a 7/8"
Gene,
Mcmaster has 6mm long M5 screws:
https://www.mcmaster.com/#socket-cap-screws/=1c7nxzi
MSCDIrect also has 6mm: https://tinyurl.com/yas6ujlh
Not sure that link will work.
I was surprised they didn't have 5mm.
Mark
On Sat, Mar 31, 2018 at 12:32 PM, Gene Heskett wrote:
> And I don't seem
I always check good old McMaster-Carr first:
https://www.mcmaster.com/#standard-socket-head-screws/=1c7o6zf
On Sat, Mar 31, 2018 at 2:32 PM, Gene Heskett wrote:
> And I don't seem to find any shorter than 10mm.
>
> 5mm long would be a great plenty. This is to be installed in the side of
> a 7/8"
On 31 March 2018 at 20:32, Gene Heskett wrote:
> And I don't seem to find any shorter than 10mm.
> 5mm long would be a great plenty.
Can you use 6 long?
https://www.ebay.com/itm/112016494139
He list 5mm long but is out of stock.
Lots exist in China.
But it seems a bit odd to use a screw shorter
I assume that you want SHCS? I'm not sure about 5mm but M5-0.8x6 is readily
available:
https://www.fastenal.com/products/fasteners/sockets/socket-cap-screws?term=s
ocket+head&r=~%7Ccategoryl1:%2260%20Fasteners%22%7C~%20~%7Ccategoryl2:%2
2600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Sock
And I don't seem to find any shorter than 10mm.
5mm long would be a great plenty. This is to be installed in the side of
a 7/8" diameter slug, with about 1/2 the head buried in the slug, and
the other half to stick up into a cutout the same width as the head of
the screw, purpose to lock the sl
On Saturday 31 March 2018 11:52:01 Chris Albertson wrote:
> On Fri, Mar 30, 2018 at 8:20 PM, Gene Heskett
wrote:
> > On Friday 30 March 2018 20:34:52 Chris Albertson wrote:
> >
> >
> > Just one question? Can you build this for less than you can buy it
> > from Mesa? Or Pico? If you time is wort
OK so here is what is required. The "joint action server" gets messages
for up to 6 axis. The messages contain the velocities for each joint.
Realistically it will not get more than abut 20 of these per second.
Other types of messages are per joint acceleration limits and
transformation matrixes.
I did something similar two years ago. 32 bit value with 16 bits for encoder
style pulse counter and 16 bits for decimal is what I should chose. Position
values.
With encoder style I think of an encoder timer which usually overflow and then
number of overflows is counted for longer motion. This
On 31 March 2018 at 16:52, Chris Albertson wrote:
> The trouble with Mesa in this case is that I'd have to write a whole bunch
> of FPGA code to make it into what they call a "joint trajectory action
> server"
>
> I thought about using G-code for the robots but they need to do things like
> notic
On Fri, Mar 30, 2018 at 8:20 PM, Gene Heskett wrote:
> On Friday 30 March 2018 20:34:52 Chris Albertson wrote:
>
> Just one question? Can you build this for less than you can buy it from
> Mesa? Or Pico? If you time is worth a buck an hour, its a slim chance
> of yes. Very slim. Otherwise get it
no ... if use lcnc you have a quite good motion planner, more then one
kinematics to load to make your robot arm ... for 7 axis robot you can add
1 axis to pumakins if the axis is calculated for limit acceleration
... there are some realtime component that can help you to make these
features .
On Saturday 31 March 2018 02:16:36 Marcus Bowman wrote:
> On 31 Mar 2018, at 04:20, Gene Heskett wrote:
> > Just one question? Can you build this for less than you can buy it
> > from Mesa? Or Pico? If you time is worth a buck an hour, its a slim
> > chance of yes. Very slim. Otherwise get it fro
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