On Monday 23 February 2015 05:36:50 pm andy pugh wrote:
> On 23 February 2015 at 22:26, Gene Heskett wrote:
> > The flat black used in optics where the real estate for the absorber is
> > not available still reflects 8 to 10% of the light that hits it.
>
> http://en.wikipedia.org/wiki/Vantablack
On 02/23/2015 02:26 PM, Gene Heskett wrote:
> On Monday, February 23, 2015 03:29:26 PM Marcus Bowman wrote:
>> I guess you will need a matt black
>> finish, so the tip about producing a matt finish is useful. Acetal
>> will hold a decent cut thread.
>
> Please bear in mind that the matt finish isn'
On 23 February 2015 at 22:26, Gene Heskett wrote:
> The flat black used in optics where the real estate for the absorber is
> not available still reflects 8 to 10% of the light that hits it.
>
http://en.wikipedia.org/wiki/Vantablack
--
atp
If you can't fix it, you don't own it.
http://www.ifix
On Monday, February 23, 2015 03:29:26 PM Marcus Bowman wrote:
> I guess you will need a matt black
> finish, so the tip about producing a matt finish is useful. Acetal
> will hold a decent cut thread.
Please bear in mind that the matt finish isn't the deadest black in
optical terms. In the tv bu
On Mon, 23 Feb 2015, Marius Liebenberg wrote:
> Date: Mon, 23 Feb 2015 21:10:51 +
> From: Marius Liebenberg
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] Mesa configuration
>
> I have a 7i80 that has to connect to a 7i44. The 7i44 connects to a 7i70
> and 7i71.
> I am try
It'd probably be a whole bunch faster if you got 15 of these
http://www.ebay.com/itm/New-Universal-Digital-PID-Temperature-Controller-with-SSR-Output-and-2-Alarms-/251847129323
(or similar) 14 for your machine and a spare (or two)
They have alarm outputs so you could wire them all up to take some
I have a 7i80 that has to connect to a 7i44. The 7i44 connects to a 7i70
and 7i71.
I am trying to setup the card but I cannot find a bit file for this
combination. Does anyone know how I go about setting up this
configuration please?
-
Regards / Groete
Marius D. L
I use both Acetal and Delrin, in both white and black.
Machining a batch of Delrin parts for most of this week. Did some Acetal parts
last week. One-offs that turned into batches.
Delrin is a bit stronger, mechanically, and a bit more abrasion resistant, but,
for microscope parts, Acetal is chea
On 23 February 2015 at 08:54, Viesturs Lācis
wrote:
> I would appreciate, if someone could share a source for torsion
> springs, moment needed is 70 Nm, when there is 90 degrees still left
> to reach max angle (for 270 degree max angle that would be ~105 Nm max
> moment).
>
Lets take the example
On 2/23/2015 1:49 PM, dave wrote:
> Weber Systems wrote EZ-Trol
http://www.webersys.com/
Synergy looks a bit like Ez-trol but I don't see any free copies of
Synergy being given away or links to the source code... only a 30 day
free trial.
Perhaps we have a different idea of what is "Public Do
PS - I machine some rubbery plastic parts that have a durometer similar
to soft urethanes. I freeze the parts to make them harder, so they cut
instead of smearing and tearing.
On 02/23/2015 11:46 AM, Kirk Wallace wrote:
> I am using this site as a reference for making some telescope eyepiece
On 02/23/2015 10:26 AM, Kirk Wallace wrote:
> On 02/23/2015 09:03 AM, Bari wrote:
> ... snip
>> How are you defining fully hard? Urethane's can easily be over Shored
>> D 90.
> Common PVC pipe is too soft. The threads fold over with running a
> fingernail over them. Phenolic is too hard, or rather
Black Delrin (acetal) turns nicely and produces good threads. I've also
found that it can be sanded with a random orbital sander and 220 grit
paper to make a gorgeous matte finish that has a warm velvet feel that
also resists fingerprints. For round parts, you should be able to
create the sam
On 02/23/2015 09:19 AM, Dave Cole wrote:
> On 2/23/2015 11:12 AM, dave wrote:
>> IIRC Weber Systems wrote EZ-Trol for Smithy. A couple of years ago
>> it was moved to public domain.
> I don't recall that ever being mentioned on the EMC2/LinuxCNC email list?
>
> Where is it at??
>
> Dave
It i
On 02/23/2015 09:03 AM, Bari wrote:
... snip
> How are you defining fully hard? Urethane's can easily be over Shored
> D 90.
Common PVC pipe is too soft. The threads fold over with running a
fingernail over them. Phenolic is too hard, or rather brittle, the
thread peaks break off. Although this is
On 2/23/2015 11:12 AM, dave wrote:
> IIRC Weber Systems wrote EZ-Trol for Smithy. A couple of years ago
> it was moved to public domain.
I don't recall that ever being mentioned on the EMC2/LinuxCNC email list?
Where is it at??
Dave
---
This email has been checked for viruses by Avast anti
On 02/23/2015 10:46 AM, Kirk Wallace wrote:
> I am using this site as a reference for making some telescope eyepieces:
> http://home.fuse.net/astronomy/
>
> Larry chose to use urethane to make the blanks for machining. My
> experience with urethane is that recipes range from rubbery soft to
> prett
I am using this site as a reference for making some telescope eyepieces:
http://home.fuse.net/astronomy/
Larry chose to use urethane to make the blanks for machining. My
experience with urethane is that recipes range from rubbery soft to
pretty darn hard, but not fully hard. I need something tha
On 02/19/2015 09:02 AM, Dave Cole wrote:
> Trademarking doesn't do much other than allowing someone/thing to take
> some ownership of a name to make sure that someone else can't openly use
> the same "name".
>
> Remember when EMC2 became LinuxCNC? That was due to what EMC saw as a
> trademark inf
Do you not have any springmakers locally?
I sometimes get springs made, 1 off or 500. From a drawing, sample, or just
verbal. They'll also understand you better, and once you have a sample of
sorts, it's easier to edit.
Regards
Roland
On 23 February 2015 at 10:54, Viesturs Lācis
wrote:
> Hello
OK, Thanks Sebastian.
-Original Message-
From: Sebastian Kuzminsky
Sent: Sunday, February 22, 2015 6:11 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] LinuxCNC 2.6.6
On 02/22/2015 02:52 PM, TonyZPP wrote:
> I was wondering if the new "moveoff" feature will allow joggin
2015-02-23 15:58 GMT+02:00 Dave Cole :
> The other option might be some type of compressed air powered rotary
> actuator.Connected to a compressed air reservoir could act as a
> rotary spring.
Thank you, sounds doable, I will investigate this option in more details.
Viesturs
I think that something like that would be custom made to suit the
application.
A spring steel rod properly tempered, etc.
If you have any heat treatment shops around you they may be able to make
some suggestions. The spring shaft might have to be quite long to get
270 degrees of movement out of
Hello!
I would appreciate, if someone could share a source for torsion
springs, moment needed is 70 Nm, when there is 90 degrees still left
to reach max angle (for 270 degree max angle that would be ~105 Nm max
moment).
I ordered Lesjofors springs, received them today and discovered that
in the ca
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