[Emc-users] Xfig install problems
Hi All I am having trouble installing xfig for generating gcode. When I try to install transfig I get Error:Dependency is not satisfiable: libc6. Libc6 is installed as far as I can see. I am running Dapper and have just insatlled all patches. Can any one offer any help, or is there another open source option for turning drawings into gcode? Thanks Aaron -- Powered by Outblaze - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Powerdex Tool Changers
If you would like to try building your own here are some links, http://www.cnc-projects.de/ - look at cnc-revolver http://www.cnczone.com/forums/showthread.php?t=46771 I ran across one other also that use pins to lock into position, But I don't remember the web site at the moment - Original Message - From: Kirk Wallace [EMAIL PROTECTED] To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, March 07, 2008 7:03 PM Subject: Re: [Emc-users] Powerdex Tool Changers On Fri, 2008-03-07 at 17:05 -0500, Dave Keeton wrote: If it is like a Barrafaldi or a Duplomatic I can help..I have installed both of these...It looks alot like them and I would assume they use the same kind of encoder. Reading the encoder is fairly easy using ladder, If you happen to have FAPT Ladder III editing software I can send you what I wrote for this. I installed a Duplomatic turret on a Fanuc 21i TB controlled lathe about 6 months ago. Alot of these turrets are built and operate pretty much the same. I can get you the time and operation sequence if you need it. Timing on these turrets is critical. Control (including propagation delay) should be very accurate to +- 10ms or it will mis-index. What questions do you have? I have my Hardinge HNC turret working through an HAL module. Part of what makes EMC and HAL so cool is that it allows someone with my skills to make it work. I am looking for general design examples, in order to try to come up with a design for lathe tool changers for Sherline and bench-top class machines. The issues that are bothering me now are how to stop the turret in eight positions, with high accuracy and rigidity. The Hardinge accomplishes this by having just one broad and short zero clearance interface between the movable turret table and the carriage. Plus a pneumatic piston which clamps evenly across the table. I won't be using pneumatics, so I can't utilize the Hardinge design for clamping. And the other examples I have seen don't have the two direction motion (rise rotate, park) of the Hardinge, suggesting a different internal design altogether. Checking the Barufaldi and Duplomatic links: http://www.baruffaldi.it/eng/interne/prodotti/macchine_utensili/index.html http://www.duplomatic.com/duplomatic/auto/uk/2/frame2.html reminded me that I need to worry about live tooling too. ;) -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Powerdex Tool Changers
Kirk, You are correct, This actually done with with a cam. The turret reaches position and then reverses direction for 50ms. This allows a solonoid fired locking pin to disengage. The pin is used to locate the turret on position while the curvic coupling is engaged to lock it in position. The squence goes like this.. 1. Unclamp the turret and engage the motor starter for say clockwise rotation 2. When the turret is in between the called tool and the position before it, engaged the locking pin and let it ride on the cam ring. 3. When the turret reaches the called tool, the locking pin drops into the cam ring slot to stop the turret. A proximity switch is used to confirm this has happened. Clockwise starter disengages. 4. Counter clockwise motor starter is engaged for 50ms to allow the locking pin to retract and the indexing pin to engage in its hole. Proxy switches are used to confirm both has happened. 5. The motor counter clockwise starter disengages, the motor brake is applied, then the turret clamps into to the coupling and the index pin is retracted. 6. The tool position is reported to the CNC software and the proper tool offset is called up. 7. Cycle complete. As the turret rotates a 200ms timer is used between each tool position to drop out the motor if a collision occurs during rotation. The timer is reset while passing each tool position during rotation. Most electric turrets have a thermal cut out on the motor to protect it from being damaged if a collision occurs. There are 6 bits on the encoder... TPS 1,2,3,4,Parity and Strobe the first 4 are positional Bits, Parity is used to confirm The first 4 bits are correct and strobe is fired once per tool position. Dave - Original Message - From: Kirk Wallace [EMAIL PROTECTED] To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, March 07, 2008 10:53 PM Subject: Re: [Emc-users] Powerdex Tool Changers On Fri, 2008-03-07 at 20:50 -0500, Dave Keeton wrote: Our Mazak Lathe has a turret that uses a belville spring washers in a friction brake. The nice thing about it is that when a collision occurs the turret is pretty easy to get back on centerline. It uses a shot pin to locate that is pulled back out when it is clamped. It is hydraulic though.It has live tooling also.we never use the live tooling except tapping every so often.. If you use pins to locate and hold the tool drum in place it is more difficult to align after collision.I am not to sure about the disc brake idea.Seems like tool pressure might make it slipcould be dangerous in a power failure also.. Dave So is the turret located by engaging a pin, setting a brake and then retracting the pin so that only the brake friction holds the turret position during machining? I assumed that with a tool crash that you would either break the tool, holder or turret. Rumor has it that a small lathe tool changer is available from Emco which can be seen at the bottom of the page here: http://www.emco.co.uk/pct55.htm I hear that it has a pawl on the turret drive shaft. The turret motor drives the turret until the pawl falls into the location for the desired tool. It then reverses against the pawl to lock it, take out all slop and get the final position. The turret rotates in a direction such that the cutting forces are also against the pawl, but apparently the pawl can flex under heavy cuts. This design has the advantage of being very simple, maybe even elegant. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Decompiling PLC file
Hello All, Does anyone have the knowledge and/or software to decompile the PAL (Programmable Application Logic) files from an Allen Bradley 8400MP CNC control? I have the 2 files from the Hi and Low EPROMs. They were saved as Hex, ASCI, and BIN files. The data from these files would be a good starting place for developing a Classic Ladder file now that I am upgrading my machine to EMC2. I have ordered a Motenc board. Thank you Dale Ertley - Looking for last minute shopping deals? Find them fast with Yahoo! Search.- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Decompiling PLC file
On Sat, 2008-03-08 at 09:03 -0800, Dale Ertley wrote: Hello All, Does anyone have the knowledge and/or software to decompile the PAL (Programmable Application Logic) files from an Allen Bradley 8400MP CNC control? I have the 2 files from the Hi and Low EPROMs. They were saved as Hex, ASCI, and BIN files. The data from these files would be a good starting place for developing a Classic Ladder file now that I am upgrading my machine to EMC2. I have ordered a Motenc board. Thank you Dale Ertley What kind of machine are you converting? If the mechanics are not that complicated, I wonder if you would be better off starting from scratch. Sometimes a machine will have a number of separate simple systems that only look complicated if viewed as a whole. To me, it sounds like decompiling ROMs is complicated from the start. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Bricscad
On Friday 07 March 2008, Gene Heskett wrote: I downloaded the tgz and unpacked it, which supp[oseely has a 30 day trial option. However, I can't get past the license key requester to soo how its supposed to look, and there appears not to be a temp key in the archive. Does anyone know how to make the limited time demo mode run? I also looked at synergy, sweet! Update on synergy: Thinking if I can figure out how to use it, I might even buy it although the extras are outragiously high. But, so far on this F8 box, I have only gotten to the end of one of the demo sessions, all the rest have taken X down with a signal 11 after about 100 operations. I see the last rpm is for RH9, which is now pretty prehistoric so I suspect a glibc incompatibility even though I'm running the tgz version. And I've made many attempts to load a very simple .DWG file from the schools autocad install of a friend of mine, with absolutely zero success. He has sent me pdf's but I can't make gcode out of a pdf. Does it (synergy) run ok on the kubuntu-6.06 that emc is built on? And I still haven't found a method to allow bricscad to run. Anybody else have it working? -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Systems programmers are the high priests of a low cult. -- R.S. Barton - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
