Re: [Emc-users] UK suppliers of stepper motors and drive electronics

2008-02-13 Thread Hansjakob Rusterholz
Am 13.02.2008 um 11:41 schrieb [EMAIL PROTECTED]: On 12 Feb 2008 at 18:03, [EMAIL PROTECTED] wrote: EMC can do PID just fine. It's steppers that can't. Steppers lose torque as the speed increases. There is no way around this, it's just the physics of the motor. Did someone

Re: [Emc-users] small gantry machine

2008-01-04 Thread Hansjakob Rusterholz
Hi Aram first look on the small gantry looks like this kind of gantry is only suitable for pick and place applications, because this construction is as we here called a lamb tail. For cutting foam could be feasible, but for cutting more than wood absolutely too windy (I guess, with pressing

Re: [Emc-users] Macro Language

2007-08-15 Thread Hansjakob Rusterholz
Hi EMC2 pros I was using 12 years IBH CNC: http://www.ibh-cnc.com They had so called Parameter sentences. A parameter sentence was always one Line, and startet with a star, for example: *N10 P43=4000 With this lines you could perform simple math like *+-/, sqr, If, goto etc, you had about

Re: [Emc-users] Macro Language

2007-08-15 Thread Hansjakob Rusterholz
Cool! (I should read the Manual ;-)) Thanks anyway for telling me this feature. Hansjakob Am 15.08.2007 um 16:04 schrieb Jeff Epler: In emc2, these are known as parameters. The # character is used to set them or use their values. A parameter can be set with gcode like #43=4000

Re: [Emc-users] PII machine

2007-08-06 Thread Hansjakob Rusterholz
Hi Aaron like in the Wiki described, about 500 MHz are O.K. my experiment with slow computers are: 450 Mhz PIII with 512 MB RAM: Installation works (256 MB RAM failed to install), takes time, Simulation O.K., but Halmeter and other diagnostics painful slow. 1.1 GHz AMD, 512 MB RAM works

Re: [Emc-users] Need a contour finder probe

2007-04-25 Thread Hansjakob Rusterholz
, as operator. I think, this functionality could even be implemented in EMC, but not as a dummy programmer as me ;-) Hansjakob Rusterholz - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE

Re: [Emc-users] Gantry kinematics and homing

2007-01-21 Thread Hansjakob Rusterholz
Hi Marc I was working long time on an six axis gantry laser system with about 2.7 to 1.8 meters travelling range. As I understood from the machine builder, they used also two independent servos fore both gantry sides, one was the master servo, and the other was tracking to the master. Both

Re: [Emc-users] Gantry kinematics and homing

2007-01-21 Thread Hansjakob Rusterholz
Hi The system builder also tried the way with an shaft. He said you will never get the desired accuracy and dynamics, but for an plasma cutter, this may be not the problem. The gantry was about one metric ton and accelerated in 300 ms to 30 m/ minutes! Only the servo amplifiers costed me over