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Author Topic: Impact engraving plugin  (Read 254809 times)

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Re: Impact engraving plugin
« Reply #350 on: February 26, 2017, 05:29:50 AM »
Hi . Can help me anybody with a new and working engraving.dll ?For Mach3.
Thank you!
Re: Impact engraving plugin
« Reply #351 on: February 26, 2017, 05:34:46 AM »
Hi . Can help me anybody with a new and working engraving.dll ?For Mach3.
Thank you!
Hi u can use TOMTOM plugin for mach3
Re: Impact engraving plugin
« Reply #352 on: February 26, 2017, 07:29:27 AM »
I dont want to use TOMTOM.I need a normal plugin,but recent one!
Re: Impact engraving plugin
« Reply #353 on: February 27, 2017, 04:28:38 PM »
After having seen the video of Jan Mozol and all that he has written and also this other video https://www.youtube.com/watch?v=bEB-hN3Fnek  I believe that a departure point for the mechanics with the magnets might be that represented in 2 enclosed drawings.
« Last Edit: February 27, 2017, 04:35:31 PM by CAP257RM »

Offline Dan13

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Re: Impact engraving plugin
« Reply #354 on: March 12, 2017, 02:32:43 PM »
Does anyone have any idea how Roland make their impact heads?
https://www.youtube.com/watch?v=zvXmtWM5ZCM

They work extremely fast and from the specs it appears the plunger moves at about 700Hz (353 dpi resolution at 2in/min engraving speed):
https://www.rolanddga.com/products/engraving-machines/mpx-95-impact-printer/specifications

Do they utilize a very small solenoid and a very small stroke and low power? I would like to try and build a head that would be that fast.

There are also these handheld machines, which are much faster:
http://www.eliseservices.co.uk/p/apollo-13w-7200-stroke-per-minute-electric-engraver-5-piece-mixed-accessory-kit-including-letter-number-shape-template-stencils/

Dan
Re: Impact engraving plugin
« Reply #355 on: March 17, 2017, 09:12:22 AM »
what is this secrecy?why can't somebody put here the picture of magnetic impact head? is a secret? we want to do this impact head but we need some help.for me is a hobby the CNC is ready but I need some draw with this head.
Help,help.!!!
Thank you!
Re: Impact engraving plugin
« Reply #356 on: March 30, 2017, 03:25:29 PM »
Hi there,
I've got a question. Whenever I start engraving, the machine engraves it in italic shape not straight! Does anyone know what's the problem with? :-[ :-[ ??? ??? :(

Offline Dan13

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Re: Impact engraving plugin
« Reply #357 on: May 18, 2017, 08:23:21 AM »
Replaced the simple transistor-based circuit with a stepper driver to drive the solenoid, and now I can get much higher frequencies. Now 50Hz is not a problem and even can be pushed up to 80Hz.

Facing 2 problems:
1. The solenoid is connected to only one phase of the driver, so I am getting only HALF the frequency (the driver is set to FULL step). If 200 pulses are sent, the solenoid only does 100 strokes.
2. The plunger idle state position is random. After a pulse train the plunger sometimes stops inside the coil, while sometimes outside. This is a big problem, since it ruins the work when the plunger sticks outside while idle and being dragged on the work.

I think the 2 problem are related.

How did you overcome these issues? Did you have them at all?

Thanks,
Dan
Re: Impact engraving plugin
« Reply #358 on: June 08, 2017, 02:22:34 PM »
Hi Dan13 , the solution is simple: you can use 2 coils in paralel conection (I mean in magnetic way, not electric) and conect the two outputs one to each driver output .I've done this way using two solenoid coils and three magnets ,
« Last Edit: June 08, 2017, 02:36:23 PM by Jan Mozol »
Re: Impact engraving plugin
« Reply #359 on: June 08, 2017, 02:27:09 PM »
Since I use the pwm in digital trigger, i just add a 0 pwm comand at the end of the g-code

like this:

S0
X0Y0

If you are interested i can send my gcode generator , by the way, I can send to everyone- here: ( it is in portuguese )

https://drive.google.com/file/d/0B6ms-_b-INkOZEVRMXFyWXlWT0k/view?usp=drive_web