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Re: Whats the point with a Z bottom limitswitch ?
My Denford mill has an easily adjustable Z switch - very simple mechanics. I can upload a picture if you have a hard time figuring out how to implement it.
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Often the part is held by a vice and far above the plane. Also most of my tools are almost equal in length, so it's relatively easy to set a relevant negative Z limit. I have never needed it so far, but one day I'll thank Denford..... /Torleif. Eirik Karlsen wrote: Well, on this machine its not a problem because the spindle itself (no |
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Re: Index puls problem SOLVED!
Hi Art
This is a update from the post Problem SOLVED... I changed pins on the breakout board. I put in lots of time testing shealding whir es. must be a problem in cabling or something. Roy Johnson --- In mach1mach2cnc@..., "Roy" <milehigh51@y...> wrote: going in with the MPG I am using the cnc4pc puls card. |
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Re: Whats the point with a Z bottom limitswitch ?
Eirik Karlsen
Well, on this machine its not a problem because the spindle itself (no
toolholder) stops at the table, and it the table wasn't there the spindle could go a further 10-15cm down. However the table can not be moved sufficiently X-Y for that to happen. So Z can reach the table even without any tool. So wherever I'd place that switch it would either allow a mech. crash with the table, or with a shorter tool there wouldn't be sufficient Z travel towards the table. Either way the limitswitch would just be a nuisance. Only solution I can see is if that switch was adjustable so it could be adjusted to match the length of the tool in use at the time. Probably not too practical with an automatic toolchanger, but I'll be using manual toolchange so this might be a way forward. I believe there are plenty of 'cnc-millers' on this list and they must have run into this problem and possibly solved it. I could go for a movable switch right now but would like to avoid it if possible...tricky mechanics. Would like some more input on this problem. Thanks E.K Lee White wrote: How about if your tools too short and then you will stress out someCraft hobby Hobby and craft supply Cnc controller Mach2 Machine controller ------------------------------------------------------------------------- *** VISIT MY HOME PAGE: <> LAST UPDATED: 23/08/2003 *** Regards Eirik Karlsen |
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Re: Bridgeport Mill Stepper recommendation?
Chris Buchanan
Thanks, for the info. This is a 12 x 54 that I need to retrofit for a friend, I believe it is a birmingham.
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----- Original Message -----
From: afn09556 To: mach1mach2cnc@... Sent: Thursday, January 26, 2006 2:58 PM Subject: [mach1mach2cnc] Re: Bridgeport Mill Stepper recommendation? Hi, Chris: Just a thouhgt. is this mill ballscrew now. ? If it's not Bport ser. 1 Ridig or J-head mill's are out there (e-bay) for less than $1000.00, just install Gecko Drive's & power supply Mach3. Has, Ballscrew's X Y Z Stepper 1.8deg 200step over all, ratio 5:1 1000 step's per 1" Nice Table size. Limit switch's Spindel motor 2 hp is 3 phase (phase adapter) or change out to 1 phase Var speed head Quick change spindel. Sound's like bport sale's, Hu. Reg. chip --- In mach1mach2cnc@..., Chris Buchanan <Buchanan@s...> wrote: > > Does anyone have a recommendation for a good stepper to direct drive a bridgeport clone knee mill. I intend to direct drive a .200" lead ballscrew for X and Y. Thus I would only need about 300 rpm to get a max of 60 IPM. > What would be the benefit of using a smaller motor and perhaps a 2:1 Mechanical reduction at 600 rpm, other than resolution? I am trying to stay away from any detrimental effects of operating steppers at a higher rpm with reduced torque or any resonance prone speeds. > > Thanks > > Chris B > > > www.machsupport.com - Web site Access SPONSORED LINKS Craft hobby Hobby and craft supply Cnc controller Mach2 Machine controller ------------------------------------------------------------------------------ YAHOO! GROUPS LINKS a.. Visit your group "mach1mach2cnc" on the web. b.. To unsubscribe from this group, send an email to: mach1mach2cnc-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ------------------------------------------------------------------------------ |
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Re: Bridgeport Mill Stepper recommendation?
afn09556
Hi, Chris:
Just a thouhgt. is this mill ballscrew now. ? If it's not Bport ser. 1 Ridig or J-head mill's are out there (e-bay) for less than $1000.00, just install Gecko Drive's & power supply Mach3. Has, Ballscrew's X Y Z Stepper 1.8deg 200step over all, ratio 5:1 1000 step's per 1" Nice Table size. Limit switch's Spindel motor 2 hp is 3 phase (phase adapter) or change out to 1 phase Var speed head Quick change spindel. Sound's like bport sale's, Hu. Reg. chip --- In mach1mach2cnc@..., Chris Buchanan <Buchanan@s...> wrote: a bridgeport clone knee mill. I intend to direct drive a .200" lead ballscrew for X and Y. Thus I would only need about 300 rpm to get a max of 60 IPM. What would be the benefit of using a smaller motor and perhaps a 2:1Mechanical reduction at 600 rpm, other than resolution? I am trying to stay away from any detrimental effects of operating steppers at a higher rpm with reduced torque or any resonance prone speeds.
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Re: retrofit / upgrade
Lee White
Roger,
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another consideration could be Rutex Drives and US Digital encoders. For your voltage you may need to go this way. Thanks, Lee. Lee K. White Premier Pattern Equipment Ltd. 9725 - 60 Ave Edmonton, AB T6E 0C4 Phone: 780-430-1549 Fax: 780-430-1526 Website: www.premierpattern.com ----- Original Message -----
From: "vrsculptor" <vrsculptor@...> To: <mach1mach2cnc@...> Sent: Thursday, January 26, 2006 11:39 AM Subject: [mach1mach2cnc] Re: retrofit / upgrade If my experience is any guide... Keep the axis motors, put existing |
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Re: angular limit
--- In mach1mach2cnc@..., art <fenerty@a...> wrote:
Art: I have used the machine both ways and it runs better with it on. If it is turned off the machine will ramp up and down for each entity that is cut(even in the G64 mode).So if I cut the contour of an 6"X12" elipse at 600 inches per minute the machine will still ramp up and down for each of the entities that make up the elipse. I would like the machine to ramp up at the first entity and down at the last entity. If I use G64 and set the angular limit to 85 then it will cut smooth. The machine setup 1909.8593171 steps per inch and I use the campbell board with G201 geckos as drives. Any help would be much appreciated. Thanks, John 99.9% of systems.and I am not sure how to define them? |
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Re: retrofit / upgrade
vrsculptor
If my experience is any guide... Keep the axis motors, put existing
axis amps on the shelf, build or buy a 60-80 volt power supply (around 50 volt transformer, maybe 10 amps, full wave bridge, a big capacitor), PMXD-121 breakout board (do a google), 3 gecko 320's (geckodrive.com) and mach3. Shouldn't cost more than $600. If the spindle requires an analog voltage to run use a variable resistor with a low voltage wall wart. You will have to work out e-stop and connect your existing home/limit switches to the breakout board. That was how I initialy converted my mill several years back. I've a lot of things since then. Good luck. Roger Yes, it is a cnc and in it's day the sharnoa controller had a lot ofhaven't checked the amp draw. |
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Version 1.90.002 online.
art
Hi All:
Version 1.90.002 is online. It has.. 1) Feedrate fix for slaved axis. The feedrate DRO was wrong on realtime feedrate when an axis was slaved. 2) Image class completely changed. This was done to speed up the display system, which now seems twice as fast as before. Support for alphablended images , PNG,s and transparent gifs are added as well, but untested. This image class shoudl aid in the transparency problems and background front to back issues. But this is an early test. You may want to wait for some feedback on its abilities before upgrading unless displays have been very slow for you.. (Benny: Try your png alpha blends, let me kow if all works, and Ill update the Screen designer. ) Thanks, Art www.artofcnc.ca Videos And Support Forums Users Map: |
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Bridgeport Mill Stepper recommendation?
Chris Buchanan
Does anyone have a recommendation for a good stepper to direct drive a bridgeport clone knee mill. I intend to direct drive a .200" lead ballscrew for X and Y. Thus I would only need about 300 rpm to get a max of 60 IPM.
What would be the benefit of using a smaller motor and perhaps a 2:1 Mechanical reduction at 600 rpm, other than resolution? I am trying to stay away from any detrimental effects of operating steppers at a higher rpm with reduced torque or any resonance prone speeds. Thanks Chris B |
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Re: Whats the point with a Z bottom limitswitch ?
Lee White
How about if your tools too short and then you will stress out some
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mechanical part trying to go further down than it can. This assumes you have soft limits out of wack. Thanks, Lee. Lee K. White Premier Pattern Equipment Ltd. 9725 - 60 Ave Edmonton, AB T6E 0C4 Phone: 780-430-1549 Fax: 780-430-1526 Website: www.premierpattern.com ----- Original Message -----
From: <mugen121@...> To: <mach1mach2cnc@...> Sent: Thursday, January 26, 2006 9:31 AM Subject: Re: [mach1mach2cnc] Whats the point with a Z bottom limitswitch ? before the toolholder hits the table.all you lose is an endmill |
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Whats the point with a Z bottom limitswitch ?
Eirik Karlsen
Last night I was about to decide on where to put the limit switches on
the mill's Z-axis... the top switch is ok, but how about the bottom switch? I really can't see any benefit from having this switch. Here is what I found (many of you will have been her long time ago): Activate the switch when: -spindle hits the table -tool holder hits the table -tool hits the table Can't find any of these all that usefull...whatever selection it will be wrong and useless in other conditions e.g other tool lengths. So what do you milling guys do? Do you even fit this switch? -- *** VISIT MY HOME PAGE: <> LAST UPDATED: 23/08/2003 *** Regards Eirik Karlsen |
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Re: Help with config
ereibsane
Thank you Art, I'll take a look at that. I put the G Code files and
Post Proc. under Files/Chain Gang Designs here in the forum if they are helpful. Eric Chain Gang Designs, Inc. --- In mach1mach2cnc@..., art <fenerty@a...> wrote: easy, use the Config/IJ mode to switch |
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Re: MAXNC CL - MACH3 setup XML file
art
Hi Manu:
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The FTP site, available form the www.machsupport.com website, has all the ones I have. I will add them there is users send them to me.. Thanks, Art www.artofcnc.ca Videos And Support Forums Users Map: ----- Original Message -----
From: "Manu CNC" <mansys@...> To: <mach1mach2cnc@...> Sent: Thursday, January 26, 2006 9:47 AM Subject: [mach1mach2cnc] MAXNC CL - MACH3 setup XML file I searched through the messages & files to find a setup file (.xml) for the |
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Re: Development version 1.90.001 online.
Thanks, Don
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-----Original Message-----
From: mach1mach2cnc@... [mailto:mach1mach2cnc@...]On Behalf Of art Sent: Thursday, January 26, 2006 8:43 AM To: mach1mach2cnc@... Subject: Re: [mach1mach2cnc] Development version 1.90.001 online. Hi: The changes are at Toms request, so I think while it may change thigns a bit, the changes will be for the better.. Thanks, Art www.artofcnc.ca Videos And Support Forums Users Map: ----- Original Message ----- From: "Don" <dclifton2@...> To: <mach1mach2cnc@...> Sent: Wednesday, January 25, 2006 2:55 PM Subject: RE: [mach1mach2cnc] Development version 1.90.001 online. > Will this have any affect on tom's MP1000 THC > -----Original Message----- > From: mach1mach2cnc@... > [mailto:mach1mach2cnc@...]On Behalf Of art > Sent: Wednesday, January 25, 2006 12:55 PM > To: mach1mach2cnc@... > Subject: [mach1mach2cnc] Development version 1.90.001 online. > > > Hi Guys: > > New development version is online. > > 1) New Pierce DRO for pirce delay. > 2) nFMT fixed for higher resolution in VB macros. > > Text of the actual changes can be found in the update list on the web. > 1.90 > moves to FTP for archiving.. > > Thanks, > Art > www.artofcnc.ca > > Videos And Support Forums > Users Map: > > > > www.machsupport.com - Web site Access > > > > SPONSORED LINKS Craft hobby Hobby and craft supply Cnc controller > Mach2 Machine controller > > > ------------------------------------------------------------------------ ---- > -- > YAHOO! GROUPS LINKS > > a.. Visit your group "mach1mach2cnc" on the web. > > b.. To unsubscribe from this group, send an email to: > mach1mach2cnc-unsubscribe@... > > c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service. > > > ------------------------------------------------------------------------ ---- > -- > > > > > > > > www.machsupport.com - Web site Access > Yahoo! Groups Links > > > > > > www.machsupport.com - Web site Access SPONSORED LINKS Craft hobby Hobby and craft supply Cnc controller Mach2 Machine controller ---------------------------------------------------------------------------- -- YAHOO! GROUPS LINKS a.. Visit your group "mach1mach2cnc" on the web. b.. To unsubscribe from this group, send an email to: mach1mach2cnc-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ---------------------------------------------------------------------------- -- |
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3D Machining?
Bill Blackburn
Hi Guys
I am interested in looking at any 3D parts that have been machined using Mach3. Are there any problems maching in 3D when using Mach3? Would appricate any pictures of parts that you have machined using Mach3. Please let me know if you are using Stepper or Servo Motors? You can send pictures to my email - billblackburn@... Thanks very much for your help. Regards Bill |
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