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sherline table top machines
Andrew Werby
Message: 1
Date: Tue, 05 Nov 2002 21:40:01 -0000 From: "larry" <lseguine@...> Subject: sherline table top machines I am intrested in coments reguarding the sherline line of equipment. I owned a jobshop machine shop 20 years ago. I had some pretty nice equipment at that time and learned to appreciate GOOD tools. I am now considering doing some work on small scale projects, and am in need of setting up a new shop. I have looked at the sherline line and to me it looks toy like. However looks can be very deciving. I would appreciate any coments reguarding that line, also i would like to know what other equipment is out there these days. I also was looking at a line called TAIG mills any thoughts on this equipment line ? [Both Taig and Sherline make very nice mills (in the US), which are quite effective for projects within their working envelopes. (The miniature lathes I'm less enthusiastic about.) The Taig mills are less expensive and more heavy-duty, but the Sherlines will perform very well on small parts. They also offer a wider range of accessories than anyone else. Tim's site does an excellent job of displaying their various options- better, I think, than the Sherline site itself.] i am absolutly intrested in setting things up with CNC operatons. The CNC was just a dream in the days of my shop way beyond anything that could have been afforded by a small shop. so this is going to be a new learning period for me, but i am determined to go this way Larry Seguine Alaska Tool And Die aka Far North Creations [CNC is magic. Being able to dream up a complex part, then to tell a machine to execute it, was just a fantasy a few short years ago. Now it's not just possible, but affordable. Whatever you're wanting to do, there are sure to be numerous ways of going about it. New software and machines are being announced every day. It's an exciting time to be alive!] Andrew Werby www.computersculpture.com |
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Re: Conversational CNC
Matt Shaver
On Tuesday 05 November 2002 11:52 pm, you wrote:
OK, be glad to, should be on the way in a bit. I downloaded from theAre these the programs written by Jon Elson? See: If not, I'd love to see what you've got. Is there source code? Matt |
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Re: G-code interpreter/stepper controller
Dan Statman
Since most people run in half-step mode or microstep mode the stepper
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equates to 2000 steps per revolution in 10X microstepping mode. This is a much slower 1500 RPM. Since this is an upper bound it is rarely needed, but nice to be able to achieve. If you are running in full step mode you will have other problems long before your maximum speed is an issue. Generally resonance problems are greatest with fewer microsteps. Daniel J. Statman, Statman Designs www.statmandesigns.com dan.statman@... ----- Original Message -----
From: "bschwand" <bschwand@...> To: <CAD_CAM_EDM_DRO@...> Sent: Wednesday, November 06, 2002 12:26 AM Subject: [CAD_CAM_EDM_DRO] Re: G-code interpreter/stepper controller 50'000 ?at 200 steps per turn that's 15'000 rpm ! do steppers capable ofthat rate exist ?I guess I'll have to scale some values here and there...thanks for the tipbruno--- In CAD_CAM_EDM_DRO@y..., Art <fenerty@h...> wrote:> Hi:> > Take it from me, really, if theres one thing I KNOW its that10,000 steps> a second will never be overkill. 25000 seems acceptable to most,but to> really please most, you'll need about 50,000.> ( Took me a long time to get that one down... :)> > Art> www.artofcnc.ca aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill |
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Re: vector's learning curve too big, any other suggestions
Dan Statman
Once Fred helps you with the DXF importing steps you will really appreciate
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Vector because it is simple to learn. The nature of the beast makes all CAM packages difficult. You really are not having problems with Vector, your problems are not knowing how to import a simple DXF file from Corel. Send Fred the file or post it on the Vector discussion group (the Corel file saved as a DXF) and we can all try to help you. Once you get it working you will be amazed at how simple it really is. 1 month ago, I was exactly where you are with Vector... ready to dump it in favor of something easier. As it turns out, I have done a complete 180 degree reversal and now really like Vector for its simplicity. Daniel J. Statman, Statman Designs www.statmandesigns.com dan.statman@... ----- Original Message -----
From: "dhuffguitars" <dhuffguitars@...> To: <CAD_CAM_EDM_DRO@...> Sent: Tuesday, November 05, 2002 8:07 PM Subject: [CAD_CAM_EDM_DRO] vector's learning curve too big, any other suggestions I need to have a cad/cam program to load my drawings into to cutaol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill |
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Re: G-code interpreter/stepper controller
50'000 ?at 200 steps per turn that's 15'000 rpm ! do steppers capable of that rate exist ?I guess I'll have to scale some values here and there...thanks for the tipbruno--- In CAD_CAM_EDM_DRO@y..., Art <fenerty@h...> wrote:> Hi:> > Take it from me, really, if theres one thing I KNOW its that10,000 steps> a second will never be overkill. 25000 seems acceptable to most,but to> really please most, you'll need about 50,000.> ( Took me a long time to get that one down... :)> > Art> www.artofcnc.ca
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Re: G-code interpreter/stepper controller
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Hi,ok, but why the difference between the limit switch and the securityswitch ? if the limit switch is hit at one end of the axis, isn'tthat the same basically as hitting the security switch on the otherend ? Or is the limit switch actually used to reset the machineinitially only ?--- In CAD_CAM_EDM_DRO@y..., "Luc Vercruysse" <luc.vercruysse@p...>wrote:> On most CNC machines there are 2 switches on each side of the axis.One is a> limitswitch , the other one is a security switch.> The limitswitch can be handled within software. Once a switch ishit, > > very good specs. Is the system based on some microcontroller ? Istheyes, atmel avr at90s8535> interpreter running on the host computer ?no, on the microcontroller> Is software based on EMC ?no, completely written from scratch. EMC is much more sophisticated.My interpreter is quite limited, it only supports a very minimal setof G-codes, sufficient however to remove any hard real-timerequirements on the host. With this and a dallas semiconductors TINI,you could have a simple CNC or router, or multi-axis robotmanipulator on an ethernet network for a very low cost.brunobruno> Luc> > > > ----- Original Message -----> From: "bschwand" <bschwand@y...>> To: <CAD_CAM_EDM_DRO@y...>> Sent: Tuesday, November 05, 2002 8:30 PM> Subject: [CAD_CAM_EDM_DRO] G-code interpreter/stepper controller> > > > Hi everybody,> >> > I am in the finishing/debugging stages of a 3 axis steppercontroller/> > G-Code interpreter.> >> > The missing part is how to handle endswitches.> >> > My assumption is that hitting an endswitch is a catastrophicfailure,> > and it should never happen; therefore I was going to have the> > controller freeze all movements, signal the error (a big red LED)and> > let the operator shutdown the system, manually back off the tools,> > etc. and restart.> >> > I think that trying to have the tool be "smart" and back off thetool> > itself, etc. could possibly lead to damaging the machine and orpart> > being machined.> >> > Does this make sense ? What is usually done, or expected in such a> > case ?> >> > Please let me know what you think is the best way to handle> > endswitches, and if you have experience with other systems or> > software, let me know how it is done.> >> > BTW, this system has the following features:> >> > - communicates with the host computer through a serial RS232 port> > (the host could be a palm pilot :-) ), use of hardware (RTS/CTS)> > flow control to ensure dataflow integrity.> > - embedded basic G-Code interpreter that supports linear and> > circular interpolation in all axis> > - extensible to up to 8 axis (through an extension board, to be> > designed)> > - automatically goes to low-current (holding) setting for a givenaxis> > if that axis has not been active for 100 milliseconds> > - active current control through integrated chipset, thus verylittle> > wasted power. Running and holding current are configurablethrough> > separate potentiometer, up to 3 amp per axis (although I havenot> > tested this much power lacking the needed power supply...)> > - each axis can be configured as to what the positive or negative> > direction is (to accomodate for different machine configuration)> > - configurable "rapid transverse speed" (G00 code)> > - configuration settings are saved in permanent memory (eeprom) so> > they remain between shutdown/reset.> > - up to 10'000 steps per seconds (is this overkill ? my steppersstall> > after 900 steps/sec...)> >> > Currently supports unipolar steppers, in full-stepping mode. Abipolar> > stepper power board will come next.> >> > All feedback much appreciated, thank you.> >> > bruno> >> >> > Addresses:> > FAQ: > > FILES: > > Post Messages: CAD_CAM_EDM_DRO@y...> >> > Subscribe: CAD_CAM_EDM_DRO-subscribe@y...> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@y...> > List owner: CAD_CAM_EDM_DRO-owner@y..., wanliker@a...> > Moderator: jmelson@a... timg@k... [Moderator]> > URL to this group: > >> > OFF Topic POSTS: General Machining> > If you wish to post on unlimited OT subjects goto:> aol://5863:126/rec.crafts.metalworking or go thru Google.com toreach it if> you have trouble.> > > >> > I consider thisto be a> sister site to the CCED group, as many of the same members arethere, for OT> subjects, that are not allowed on the CCED list.> >> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BYPOSTING THEM.> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........> > bill> > List Mom> > List Owner> >> >> >> > Your use of Yahoo! Groups is subject to > >> >> >
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Re: replacing feed screw with a hydraulic cylinder
On Tue Nov 5 20:29:26 2002, JanRwl@..., <JanRwl@...> wrote:
In a message dated 11/5/2002 7:06:33 PM Central Standard Time,Then again we're likely not to hear much about setups that allready exist. Seems that the Quackers don't like electricity, but do just fine with hydraulics in all sorts of things, including machine shops..... -- ---------------------------------------------------------------------------- RKBA! Blessings On Thee, Oh Israel! 4-19! ----------------+----------+--------------------------+--------------------- An _EFFECTIVE_ | Insured | All matter is vibration. | Let he who hath no weapon in every | by COLT; | -- Max Plank | weapon sell his hand = Freedom | DIAL | In the beginning was the | garment and buy a on every side! | 1911-A1. | word. -- The Bible | sword.--Jesus Christ ----------------+----------+--------------------------+--------------------- Constitutional Government is dead, LONG LIVE THE CONSTITUTION!!!!! ---------------------------------------------------------------------------- |
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Re: Rhino, Was:vector's learning curve
The problem is not the lack of a tutorial (I am working through the
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level 1 tutorial and have already completed the ones in the help menu), but all the concepts and controls that need to be learned. I would say that so far it has about 3 times the number of commands that you use regularly compared to Vector. Not that it is bad, just much more to master before you can become productive. If you have some good tutorial sites why don't you post them. I know there are some people on the list that got the Rhino/Visual mill combo deal so there are a few beginners other than me. Tim [Denver CO] -----Original Message----- |
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Re: Conversational CNC
Brian
OK, be glad to, should be on the way in a bit. I downloaded from the
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internet somewhere wrote by ? but they work great for simple minds(mine). cul brian f. ----- Original Message -----
From: "Alan Marconett KM6VV" <KM6VV@...> To: <CAD_CAM_EDM_DRO@...> Sent: Tuesday, November 05, 2002 11:29 PM Subject: Re: [CAD_CAM_EDM_DRO] Conversational CNC Hi Brian,helper. thisA good example of conversational , first you have commands like loop,do askx number times, repeat with new location, start position, routines that programs,questions and writes code. I can send you a small batch of dos cam program.iwhich if were tied together with some user interface would make a locationuse them to make code, then append them into another program of code. all(amount between fingers)repeat the makepocket routine untill i have made spacethe slots on one end of the wood, then g-53 for the other end so the fromis where a finger was on the other end. is awindows in dos. cul brian f. can beconversational CNC program.question. aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it ifsaved and I believe ran. you have trouble. sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill |
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Re: tkemc for win32 platform
Linneiborhood makes samba easier to use if you do set it up.
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At 08:44 PM 11/5/2002 -0600, you wrote:
les, get samba working, you won't regret it. |
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Re: Conversational CNC
Alan Marconett KM6VV
Hi Brian,
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This sounds like a good place to start. Perhaps you could post a .ZIP file in our files section, OR, you can send them to me direct. KM6VV -at- ARRL dot Net Thanks! Alan KM6VV Brian wrote:
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Re: Conversational CNC
dodge1320
--- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
Hi Alan. The neat thing with a conversational program is that you do it at the machine. No need to draw cad or cam files, just answer questions. Ex:Press-Pocket mill-x1,y1-x2,y2-z rapid, z,end-ips- cutter,left or right(for inside or outside of line) It would also have conrad(radius of corners)roughing pass and finish pass& by how much... Drill-x,y-z rapid-z start-z end-#pecks Bolt circle-x,y center-# holes-Start(degrees)-z rapid-z,start-z,end-# pecks There were a lot more, but I think you get the idea. Then you would do a trial run,that disabled the z.(found those +- problems pretty quick!) It sounds kind of weird trying to write it down, but it was really quick to do. I do remember one drawback . It did not ramp up to speed. (broken cutters) There website leaves a LOT to be desired... www.southwesternindustries.com Somewhere cold and wet in Michigan......Rick |
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Re: Conversational CNC
Brian
Hi, i have Autoedit and its not conversational, just a code writing helper.
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A good example of conversational , first you have commands like loop,do this x number times, repeat with new location, start position, routines that ask questions and writes code. I can send you a small batch of dos cam programs, which if were tied together with some user interface would make a conversational program. each operates as if it is a conversational program.i use them to make code, then append them into another program of code. Example, i use the makepocket routine, start at location ,x,y (to make a slot in a piece of wood for a lock corner box. then g-53 move zero location (amount between fingers)repeat the makepocket routine untill i have made all the slots on one end of the wood, then g-53 for the other end so the space is where a finger was on the other end. if you want to try the dos routines you'll soon get the idea of conversational. they are less than 1 meg for all of them, and will run from windows in dos. cul brian f. ----- Original Message -----
From: <wanliker@...> To: <CAD_CAM_EDM_DRO@...> Sent: Tuesday, November 05, 2002 10:05 PM Subject: [CAD_CAM_EDM_DRO] Conversational CNC Would someone on the list that has used AutoEdit CNC tell me if that is aquestion. aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill |
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Re: vector's learning curve too big, any other suggestions
If you want I can post a few sits that have tutorials.
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At 07:46 PM 11/5/2002 -0700, you wrote:
Being a Vector user and now a Rhino beginner I can say with conviction that |
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Re: vector's learning curve too big, any other suggestions
Rhino is cool and easy to learn. Then you just need something to import the DXF's into. Deskproto, StlWork2, etc.
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At 01:07 AM 11/6/2002 +0000, you wrote:
I need to have a cad/cam program to load my drawings into to cut |
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Re: vector's learning curve too big, any other suggestions
Being a Vector user and now a Rhino beginner I can say with conviction that
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the learning curve on Rhino is much steeper than Vector. It does have good tutorials, but it is a VERY complex program. I really can't say that any of the CAD programs are easy. The complexity of what they do makes them quite a bit to get your arms around. I have used lots of different CAD programs and I found Vector to be the easiest to become product in rapidly. Rhino on the other had is requiring much more learning. Tim [Denver CO] ----- Original Message -----
Rhino is cool and easy to learn. Then you just need something to |
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Re: tkemc for win32 platform
Shelbyville Design & Signworks
les, get samba working, you won't regret it.
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Erie Patsellis Shelbyville Design & Signworks 1309 W. S. 7th Street Shelbyville, IL 62565 (217)774-4444 visit our website at www.shelbyvilledesign.com ----- Original Message -----
From: "Les Watts" <leswatts@...> To: <CAD_CAM_EDM_DRO@...> Sent: Tuesday, November 05, 2002 4:58 PM Subject: Re: [CAD_CAM_EDM_DRO] tkemc for win32 platform Great to hear you have the gantry machine working with EMC.aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill |
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tool turret index problem
I have a Fanuc 6T-a cnc lathe with a 12 tool turret. The turret
stoped working and sets the alarm light on when index. No code is set. I found that the encoder was loose and had turned. I have tried to reset the encoder but no luck. Does anyone know how to read and set this thing? It's an Sumtak Optcoder, type IP-11256, dc 24v 150ma, no# 8604-0092 Any info would help Thanks MikeL |
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Re: Stepper motor speeds
JJ
I have an L297/L298 setup with 5.4V, 1.5A, 23 frame motors (a) driving
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threaded rod lead screws. Power supply is 34V, 10A. on my X axis I can do 75ipm, it's a 3/8-16 rod, so 75x16=1200rpm. I'm driving it with TurboCNC, and for 75ipm it outputs 8000hz. Of course my sense of fly-apartedness kicks in at about 50-60ipm, so I've slowed it down for everyday use. I'm sure the smooth pulse train from TurboCNC helps the performance at this speed. Running the motors unipolar at 12v (through resistors), X maxed out at 9ipm or so, 144rpm. Needless to say I'm pleased with my new drivers. Incidentally, I used the machine to mill it's own driver boards. I think that's cool. Photos in the JJ folder of the group. Regards, JJ Be Kind, Be Careful, Be Yourself (a) 2w/report?sort=BKW&search=206025 I know the website says 12v, but it's wrong, I also don't think they produce 20000g-cm of torque, but have no way to measure it. Also note that the shafts are 0.184". I'm still happy with them. -----Original Message-----I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Your use of Yahoo! Groups is subject to |
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