[Emc-users] does anyone use synergy?

2009-04-11 Thread bigengineer
I found it by accident yesterday:
http://synergy2.sourceforge.net/
With it you can share 1 mouse and keyboard with several computers, works 
on windows, OSX and linux. I just installed it and although it isn't 
really responsive, if you have to switch a lot between a desktop and the 
emc2 system it might be useful.

Unfortunately development seems to have stalled, but there is a fork:
http://code.google.com/p/synergy-plus/

I have installed synergy2. This is already available on ubuntu. Just 
apt-get install synergy.

Dirk

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Re: [Emc-users] does anyone use synergy?

2009-04-11 Thread Leslie Newell
That sounds similar to VNC. VNC has been around for quite some time and 
allows you to have the desktop of one computer as a window on another 
computer. I use it regularly to work with my networkl server which has 
no keyboard, mouse or monitor of it's own.

Les


bigengineer wrote:
 I found it by accident yesterday:
 http://synergy2.sourceforge.net/
 With it you can share 1 mouse and keyboard with several computers, works 
 on windows, OSX and linux. I just installed it and although it isn't 
 really responsive, if you have to switch a lot between a desktop and the 
 emc2 system it might be useful.

 Unfortunately development seems to have stalled, but there is a fork:
 http://code.google.com/p/synergy-plus/

 I have installed synergy2. This is already available on ubuntu. Just 
 apt-get install synergy.

 Dirk
   


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Re: [Emc-users] does anyone use synergy?

2009-04-11 Thread bigengineer
Leslie Newell wrote:
 That sounds similar to VNC. 

The difference here is that you don't share the display. So, you can 
move your mouse from your windows desktop/monitor to your emc2 monitor. 
The keyboard will switch focus from windows to the emc2 system.

Dirk

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Re: [Emc-users] syncing two motors to one axis

2009-04-11 Thread Len Shelton
Thanks for the help so far. I did some studying of the manual last night and
this is what I have come up with based upon your logic:

loadrt and2 count=3 
loadrt or2 count=2 

addf and2.0 base-thread 
addf or2.0 base-thread 

net home1   parport.0.pin-10-in and2.0.in0
net home2   parport.0.pin-11-in and2.0.in1

net home1inv  = parport.0.pin-10-in-invert
net home2inv  = parport.0.pin-11-in-invert

net homeand2.0.out
net home= axis.1.home-sw-in

net doh1a   Ydiror2.0.in0
net doh1b   home1invor2.0.in1
net doh1or2.0.out

net doh2a   Ydiror2.1.in0
net doh2b   home2invor2.1.in1
net doh2or2.1.out   

net ystep1a   Ystep  and2.1.in0
net ystep1b   doh1   and2.1.in1
net ystep1and2.1.out

net ystep2a   Ystep  and2.2.in0
net ystep2b   doh2   and2.2.in1
net ystep2and2.2.out

net Xstep   = parport.0.pin-03-out
net Xdir= parport.0.pin-02-out
net ystep1  = parport.0.pin-05-out 
net ystep2  = parport.0.pin-07-out
net ydir= parport.0.pin-04-out parport.0.pin-06-out
net Zstep   = parport.0.pin-09-out
net Zdir= parport.0.pin-08-out

I am unsure of some of the syntax, and this is untested. I will be back in
the shop in a few hours and will be able to try it out.

Do you see anything blatantly wrong with any of my code?

Do I have to name every signal, particularly the ones to the inputs of the
logic gates? In other words is:

   net home1parport.0.pin-10-in and2.0.in0

the same as:

   net parport.0.pin-10-in  and2.0.in0 

?

Len
 



-Original Message-
From: Stephen Wille Padnos [mailto:spad...@sover.net] 
Sent: Friday, April 10, 2009 10:32 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] syncing two motors to one axis

Len Shelton wrote:

Jon and Rob,

You guys obviously know a lot more about the inner working of HAL than I. I
am still no closer to understanding what lines of code I need to put into
my
HAL file.

Can you please translate this simple boolean text notation...

home_en1 = dir OR NOT home1
home_en2 = dir OR NOT home2
step_1 = step AND home_en1
step_2 = step AND home_en2
home = ( ( home1 AND home2 ) AND NOT dir ) OR ( ( home 1 OR home2 )
AND dir )

...to actual HAL syntax.
  

Well, I'll point you in the right direction anyway :)

First off, the manual sections on HAL are quite good - you should (re) 
read them.

I'm not sure your logic is correct.  I don't believe that the home 
signal should depend on the DIR signal.  I'm pretty sure that home 
should just be (home1 AND home2).  If both switches are closed, then 
you're home regardless of which way the DIR line is pointing. 

Looking at your logic description, these things are apparent:
1) there are four occurrences of the word OR
2) there are five occurrences of the word AND
3) there are three occurrences of the word NOT.  Luckily, all of the 
signals that get inverted come from I/O (if you're using my HOME 
equation), which provides both a normal and inverted output to HAL, so 
you don't actually need any NOT functions
4) all of the logical operations are operating on exactly two items (ie, 
there is no a OR b OR c)
5) This is for only one axis (phew!)
6) Changing the home equation to home=(home1 AND home2) reduces the 
number of gates to 2x OR, 3x AND, and zero NOT (since you can use the 
inverted home1 and home2 inputs)

Here's how to get 3 AND gates:
loadrt and2 count=3

This will give you 3 two-input AND gates.  Each one has a function which 
needs to be added to your base thread, before the motion controller 
runs.  This will be a little tricky to get right, since you want to read 
inputs before doing the logic operations, and you want results to 
propagate through the logic caluclations correctly, you have to think 
about which inputs get connected to which logic elements, and the 
order in which they are evaluated.  I'd suggest drawing this out on 
paper, using a grid.  Start with the inputs on the left, run them 
towards the right, using columns with only one gate in each logic path.  
When you add functions to the HAL thread, start at the top left and add 
the first column of functions from top to bottom.  Then move over one 
column to the right and add those functions from top to bottom.

This is the logic I would use, which may make the order the functions 
need to run mode obvious:
step1 = step AND (dir OR home1-invert)
step2 = step AND (dir OR home2-invert)
home = (home1 AND home2)

Sorry for the long-winded and not very specific post.  Hope it helps.
- Steve



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Re: [Emc-users] syncing two motors to one axis

2009-04-11 Thread Len Shelton
I also noticed some other signals that may be useful?

axis.N.homing OUT bit 
#TRUE if the joint is currently homing
axis.N.home-sw-in IN bit  
#Should be driven TRUE if the home switch for this joint is closed
axis.N.home-state
#Reflects the step of homing currently taking place
axis.N.homed
#TRUE if the joint has been homed

I wonder what the possible values of home-state are and how they could be
used.

Len

-Original Message-
From: Len Shelton [mailto:l...@probotix.com] 
Sent: Saturday, April 11, 2009 5:46 AM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] syncing two motors to one axis

Thanks for the help so far. I did some studying of the manual last night and
this is what I have come up with based upon your logic:

loadrt and2 count=3 
loadrt or2 count=2 

addf and2.0 base-thread 
addf or2.0 base-thread 

net home1   parport.0.pin-10-in and2.0.in0
net home2   parport.0.pin-11-in and2.0.in1

net home1inv  = parport.0.pin-10-in-invert
net home2inv  = parport.0.pin-11-in-invert

net homeand2.0.out
net home= axis.1.home-sw-in

net doh1a   Ydiror2.0.in0
net doh1b   home1invor2.0.in1
net doh1or2.0.out

net doh2a   Ydiror2.1.in0
net doh2b   home2invor2.1.in1
net doh2or2.1.out   

net ystep1a   Ystep  and2.1.in0
net ystep1b   doh1   and2.1.in1
net ystep1and2.1.out

net ystep2a   Ystep  and2.2.in0
net ystep2b   doh2   and2.2.in1
net ystep2and2.2.out

net Xstep   = parport.0.pin-03-out
net Xdir= parport.0.pin-02-out
net ystep1  = parport.0.pin-05-out 
net ystep2  = parport.0.pin-07-out
net ydir= parport.0.pin-04-out parport.0.pin-06-out
net Zstep   = parport.0.pin-09-out
net Zdir= parport.0.pin-08-out

I am unsure of some of the syntax, and this is untested. I will be back in
the shop in a few hours and will be able to try it out.

Do you see anything blatantly wrong with any of my code?

Do I have to name every signal, particularly the ones to the inputs of the
logic gates? In other words is:

   net home1parport.0.pin-10-in and2.0.in0

the same as:

   net parport.0.pin-10-in  and2.0.in0 

?

Len
 



-Original Message-
From: Stephen Wille Padnos [mailto:spad...@sover.net] 
Sent: Friday, April 10, 2009 10:32 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] syncing two motors to one axis

Len Shelton wrote:

Jon and Rob,

You guys obviously know a lot more about the inner working of HAL than I. I
am still no closer to understanding what lines of code I need to put into
my
HAL file.

Can you please translate this simple boolean text notation...

home_en1 = dir OR NOT home1
home_en2 = dir OR NOT home2
step_1 = step AND home_en1
step_2 = step AND home_en2
home = ( ( home1 AND home2 ) AND NOT dir ) OR ( ( home 1 OR home2 )
AND dir )

...to actual HAL syntax.
  

Well, I'll point you in the right direction anyway :)

First off, the manual sections on HAL are quite good - you should (re) 
read them.

I'm not sure your logic is correct.  I don't believe that the home 
signal should depend on the DIR signal.  I'm pretty sure that home 
should just be (home1 AND home2).  If both switches are closed, then 
you're home regardless of which way the DIR line is pointing. 

Looking at your logic description, these things are apparent:
1) there are four occurrences of the word OR
2) there are five occurrences of the word AND
3) there are three occurrences of the word NOT.  Luckily, all of the 
signals that get inverted come from I/O (if you're using my HOME 
equation), which provides both a normal and inverted output to HAL, so 
you don't actually need any NOT functions
4) all of the logical operations are operating on exactly two items (ie, 
there is no a OR b OR c)
5) This is for only one axis (phew!)
6) Changing the home equation to home=(home1 AND home2) reduces the 
number of gates to 2x OR, 3x AND, and zero NOT (since you can use the 
inverted home1 and home2 inputs)

Here's how to get 3 AND gates:
loadrt and2 count=3

This will give you 3 two-input AND gates.  Each one has a function which 
needs to be added to your base thread, before the motion controller 
runs.  This will be a little tricky to get right, since you want to read 
inputs before doing the logic operations, and you want results to 
propagate through the logic caluclations correctly, you have to think 
about which inputs get connected to which logic elements, and the 
order in which they are evaluated.  I'd suggest drawing this out on 
paper, using a grid.  Start with the inputs on the left, run them 
towards the right, using columns with only one gate in each logic path.  
When you add functions to the HAL thread, start at the top left and add 
the first column of functions from top to bottom.  Then move over one 
column to the right and 

[Emc-users] Synergy soft KVM on steroids

2009-04-11 Thread Greg Bentzinger

Group;

A friend of mine is using one of these Synergy variants in his home
office. He has a Ubuntu box on the left, iMAC in the center and a box
running Win 7 Beta on the right.

What stood out to me was when he copied a range of cells in Excel and
dragged it over and just dropped it into an OOo spread sheet.

Its way more than just KVM.

Greg

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[Emc-users] Setting up a bench mill CNC

2009-04-11 Thread Doug Pollard
Hi all, I have built a bench mill from a fairly heavy duty drill 
press.   I beefed it up where I could and filled the column with lead 
shot. It's pretty solid and chatter resistant :-)  
My Grandson gave me a  4 axis controller  and cables .  I hope to 
make a four axis machine out of this to do a little light machining on.  
I rebuild microscopes and some other medical supplies  for a nonprofit  
company that supplies these things where they are needed world wide. My  
years of machining know how is hard for them to get so I am trying to 
give a little something back.
The controller is an xylotex board , and a 24 volt  power supply.   
Have been doing a little reading and am thinking I will need a break out 
board.  I would like to use Emc  to   generate G-codes.  I use  Ubuntu 
.10 but am looking for another used computer to run Ubuntu 8.04 and EMS 
2 on to control the mill.
I could get all the help I need from my grandson who holds me a 
little in awe for my machining ability but would would rather ask dumb 
questions of you guys.
Is there any reason why Emc will not run my xylotex board. I would 
also like to know what kind of breakout board might be suitable.  Have 
been looking at some 269 OZ in motors but also thinking that my mill has 
a pretty sturdy spindle that maybe 425 0z in. might make better use of 
that.  Since the table is only 18 inch long with 12in. of travel high 
speed might not be that important. I am assuming the more powerful 
motors may be slower??
Any other suggestions here would be greatly  appreciated.

 Doug

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Re: [Emc-users] Setting up a bench mill CNC

2009-04-11 Thread bigengineer
I don't have experience with the xylotex stuff. But it is documented. In 
the stepconf wizard it is even preconfigured:
http://www.linuxcnc.org/docview/html//config_stepconf.html
More info can be found in the wiki: 
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl just search for xylotex.

There is a lot to read about if your getting started.

Good luck!

Dirk

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Re: [Emc-users] Setting up a bench mill CNC

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 13:00 -0400, Doug Pollard wrote:
... snip 
 Is there any reason why Emc will not run my xylotex board.

EMC2 should work well. Do a search for Xylotex on the EMC2 wiki:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EmcKnowledgeBase

this should link you to the resources you need to get started.

 I would 
 also like to know what kind of breakout board might be suitable.

It looks like you don't need one, just a DB25 cable.

   Have 
 been looking at some 269 OZ in motors but also thinking that my mill has 
 a pretty sturdy spindle that maybe 425 0z in. might make better use of 
 that.  Since the table is only 18 inch long with 12in. of travel high 
 speed might not be that important. I am assuming the more powerful 
 motors may be slower??
 Any other suggestions here would be greatly  appreciated.
 
  Doug

With my DC motor research so far, it seems the 269 oz.*in. motors should
do fine, but you should see what others are using on machines similar to
yours:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Case_Studies 

--
Kirk
http://www.wallacecompany.com/machine_shop/





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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 20:29 +0200, bigengineer wrote:
 I was happily milling away today until suddenly the spindle stopped. I 
 can still hear a very light buzz but nothing happens anymore. I hoped 
 for a hidden thermal protection, but after cooling down the spindle 
 still doesn't start.

Some cheap thermal cutouts fail when they trip, but I suppose you
wouldn't hear the buz.

  This a asynchronous motor BTW. I don't think it is 
 the condensator because the motor stopped while turning. The condensator 
 is only needed to get it started.

If the starting circuit fails you can start the motor by spinning the
motor then applying power. It should run in whichever direction you spin
it. Of course, you shouldn't try this at home.

  I still measure a resistance over the 
 coils. Hmm, now I think of it, the resistance isn't equal over both 
 coils and it should be.  Well, I always was prepared for a (plastic) 
 gear to break. I never thought the motor itself would die.
... snip
 Since then I am thinking of using such a brushless outrunner motor. Does 
 anyone here has any experience with these? The motors aren't really 
 expensive, but the controllers are. Well, the good ones. I don't care 
 about investing a bit, but in the end, it is only a hobbymachine and it 
 doesn't earn me money, only knowledge. Using an outrunner would be 
 educational. But I would need to machine a lot of parts and the machine 
 doesn't work I have access to conventional machines so this isn't 
 the biggest problem. OTOH, buying a complete spindle is more expensive, 
 but with an adaptor plate it could go straight on the machine.
 So, what to do?
 
 Dirk

If it were my machine, I would get it back to working as inexpensively
as reasonable, which probably means to fix what you have. Is there a
speed controller used that may be the problem? I would remove the motor
and try the spin start I mentioned above. Also check that there is no
continuity between the windings and ground. Does the motor have a data
plate? If so, please post the data.

If the present motor is beyond help and you have no speed control, I
would look into a 90 V DC motor, such as a tread mill motor, and an SCR
speed controller.

http://shop.ebay.com/items/_W0QQ_nkwZkbicQQ_armrsZ1QQ_fromZR40QQ_mdoZ

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=260388156730

The motor linked above may be too big for your mill. The nice thing
about these DC motors is that they have good low end torque. You can get
these items pretty cheap if you wait for the right deal.

I would hold off until the machine was running again to play with the
out-runners. I like these motors because it looks like they can be built
from scratch easier than others, and some winding configurations can
give you low end torque. The biggest problem is in getting stator
lamination plates.
-
Kirk
http://www.wallacecompany.com/machine_shop/



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Re: [Emc-users] Users Locations

2009-04-11 Thread Alex Joni
Hi there.
Some quick update about this thread.
I followed the suggestions people had ([1],[2]), and added some extensions 
to the website www.linuxcnc.org:

1). Now you can subscribe as an user to www.linuxcnc.org (already registered 
users should log in to update their profile data).
  When you do you can add some information about yourself, currently:
 * Address, City, State, Zipcode, Country, Homepage - text information.
 * you can also add a profile picture if you like.
  Any of the above information is not mandatory, so if you're not 
comfortable to share it, don't.
  We can extend these with any fields we can come up with (like 
phone-number, hobbies and whatnot), I'm waiting for suggestions on this.

2). Once you entered some information about yourself (location-wise), you 
should automatically appear on the LinuxCNC Users Map. If you don't, then 
either you didn't provide enough information for google to localise you 
(usually city, state, country  is enough), or something wrong happened. I'll 
try to help with the later.

3). A new user menu (this is a section with links that appears once you are 
logged in).
  Currently it contains the following links:
   * My profile (place to update your profile information, picture, etc)
   * User List (searchable list with linuxcnc.org registered users)
   * User Map (google map that contains linuxcnc.org users)

  We can add other things people usually use to this section (to make the 
site easier to navigate). Maybe link to the IRC client, or similar.

All of the above should work as advertised, but treat the service as a 
beta-test.
I don't envision any issues coming up in the future, but if there are 
serious issues (like security threats) we might consider shutting down some 
parts of this.
Please report any problems you're having either directly to me, or on the 
list.

Have fun with building our community.

Regards,
Alex


[1]
 Gentlemen,
   I will be happy to add my information and welcome visitors at any time.
 Stuart

 On Fri, Apr 3, 2009 at 4:50 PM, Rob Jansen r...@myvoice.nl wrote:
 Alex,
 I think the webpage could be a better place than the wiki.
 If there are enough people out there who are ok with doing this, we can 
 add
 a community-module to linuxcnc.org, so every registered user can set up 
 a
 profile with pictures, links, personal information, etc.
 Let me know if there are people who would consider doing such a thing, 
 and
 based on the feedback we'll be looking if it's worth the trouble ;)

 I will definitely add my credentials.
 Question is who else will. The frappr map has been there for some time
 but there is only a very limited amount of users on the map.

 Rob

[2] Alex on frappr..
 Don't feel bad, it works just as bad for windows too.
 I'm sorry they (frappr) provide such a bad service.
 Initially it used to work a lot better, then they changed maps between
 google and yahoo a couple times, and in the end it's simply busted.
 I'll look into an alternative, and post the results. 


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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 12:32 -0700, Kirk Wallace wrote:
... snip
 If the present motor is beyond help and you have no speed control, I
 would look into a 90 V DC motor, such as a tread mill motor, and an SCR
 speed controller.
 
 http://shop.ebay.com/items/_W0QQ_nkwZkbicQQ_armrsZ1QQ_fromZR40QQ_mdoZ
 
 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=260388156730
 
 The motor linked above may be too big for your mill. The nice thing
 about these DC motors is that they have good low end torque. You can get
 these items pretty cheap if you wait for the right deal.
 
 I would hold off until the machine was running again to play with the
 out-runners. I like these motors because it looks like they can be built
 from scratch easier than others, and some winding configurations can
 give you low end torque. The biggest problem is in getting stator
 lamination plates.
 -
 Kirk
 http://www.wallacecompany.com/machine_shop/

From this video, your machine is bigger than I thought:

http://www.youtube.com/watch?v=4zapTKm9JsE

Maybe a motor like this would be better:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=320357287710

Another thing that comes to mind is that the Z upright is probably the
weakest link, being tubular and having a very small mating surface to
the base. I wonder if the X axis of this could be adapted to be your Z:

http://www.use-enco.com/CGI/INSRIT?PMAKA=201-2826PMPXNO=951820PARTPG=INLMK3



Kirk
http://www.wallacecompany.com/machine_shop/




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Re: [Emc-users] Users Locations

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 23:04 +0300, Alex Joni wrote:
 Hi there.
 Some quick update about this thread.
 I followed the suggestions people had ([1],[2]), and added some extensions 
 to the website www.linuxcnc.org:

Thank you Alex. It worked for me. Way cool.

Kirk
http://www.wallacecompany.com/machine_shop/ 



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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Dirk

On Apr 11, 2009, at 10:14 PM, Kirk Wallace wrote:
snip


 From this video, your machine is bigger than I thought:

 http://www.youtube.com/watch?v=4zapTKm9JsE

This is mine:
http://www.youtube.com/watch?v=K8NcLS-dJOAfeature=related
I forgot about it. Never got around to posting new video's. I had  
better things to do when the machine really started working. ;-)
Oh, and I do have some images online:
http://www.ipernity.com/doc/60192/album/77809

 Maybe a motor like this would be better:

 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=320357287710

Hmm, these motors, and the SCR too, look interesting. But I have had  
my share from customs when I bought stuff in the US. And although  
these motors don't seem to be expensive, I don't know how shipping  
will turn out.

 Another thing that comes to mind is that the Z upright is probably the
 weakest link, being tubular and having a very small mating surface to
 the base. I wonder if the X axis of this could be adapted to be your  
 Z:

 http://www.use-enco.com/CGI/INSRIT?PMAKA=201-2826PMPXNO=951820PARTPG=INLMK3

I have improved on that. See the pictures from the link above. This z- 
stage works pretty good.

Dirk




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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 22:32 +0200, Dirk wrote:
... snip
 Hmm, these motors, and the SCR too, look interesting. But I have had  
 my share from customs when I bought stuff in the US. And although  
 these motors don't seem to be expensive, I don't know how shipping  
 will turn out.

What area of the world are you located? Part of the fun is in making
what you have on hand work. I have old printers, vacuum cleaners, car
parts, etc. on hand waiting to be reborn into something else. My
neighbors think I have way too much of this stuff.

... snip
 I have improved on that. See the pictures from the link above. This z- 
 stage works pretty good.
 
 Dirk

Your Z looks like a big improvement. I was thinking you could replace
the round column with a square one like this:
http://www.harborfreight.com/cpi/photos/93800-93899/93885.gif

--
Kirk
http://www.wallacecompany.com/machine_shop/



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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Chuck


Kirk Wallace wrote:
 What area of the world are you located? Part of the fun is in making
 what you have on hand work. I have old printers, vacuum cleaners, car
 parts, etc. on hand waiting to be reborn into something else. My
 neighbors think I have way too much of this stuff.

   
I hear that. I am cleaning the workshop today. My wife says
that I have to throw away anything older than she is. -Chuck-


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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Dirk

On Apr 11, 2009, at 11:05 PM, Kirk Wallace wrote:

 On Sat, 2009-04-11 at 22:32 +0200, Dirk wrote:
 ... snip
 Hmm, these motors, and the SCR too, look interesting. But I have had
 my share from customs when I bought stuff in the US. And although
 these motors don't seem to be expensive, I don't know how shipping
 will turn out.

 What area of the world are you located?

I am on the map. Alex and me are the only ones in Europe.

 Part of the fun is in making
 what you have on hand work. I have old printers, vacuum cleaners, car
 parts, etc. on hand waiting to be reborn into something else. My
 neighbors think I have way too much of this stuff.

Over the years I built a reputation at work that I can use anything.  
But unfortunately there was never a surplus spindle. Or something  
which could be used for it.

 ... snip
 I have improved on that. See the pictures from the link above. This  
 z-
 stage works pretty good.

 Dirk

 Your Z looks like a big improvement. I was thinking you could replace
 the round column with a square one like this:
 http://www.harborfreight.com/cpi/photos/93800-93899/93885.gif

The stage I have was a leftover from work. :-)

I found some HF spindles. I like that they are really compact. I don't  
like the price. But what I really see as a problem is that they only  
have a limited speedrange. From very fast to ultra fast. You need very  
small carbide cutters with that.
Another thing that might be an option is a 3 phase motor with a  
frequency controller. The controller won't be cheap, but I guess the  
motor won't be expensive or hard to find.

Dirk



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Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?

2009-04-11 Thread Kirk Wallace
On Sat, 2009-04-11 at 23:32 +0200, Dirk wrote:
 On Apr 11, 2009, at 11:05 PM, Kirk Wallace wrote:
... snip
 
  Your Z looks like a big improvement. I was thinking you could replace
  the round column with a square one like this:
  http://www.harborfreight.com/cpi/photos/93800-93899/93885.gif
 
 The stage I have was a leftover from work. :-)

Actually this is more what I had in mind:
http://www.wallacecompany.com/machine_shop/mini-mill_Z.png

This would need a rectangular steel tube, some steel plate and a welder.

 I found some HF spindles. I like that they are really compact. I don't  
 like the price. But what I really see as a problem is that they only  
 have a limited speedrange. From very fast to ultra fast. You need very  
 small carbide cutters with that.

I'm not sure why you would want another spindle.

 Another thing that might be an option is a 3 phase motor with a  
 frequency controller. The controller won't be cheap, but I guess the  
 motor won't be expensive or hard to find.
 
 Dirk

It looks like you have some options for 3-phase:

http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItemitem=250402814683
http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItemitem=200328530280

http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItemitem=400042726062
http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItemitem=400041004985

If you want to hook it to EMC2:
http://www.wallacecompany.com/machine_shop/EMC2/serial_dac/ 

---
Kirk
http://www.wallacecompany.com/machine_shop/



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