Messages

1

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: September 07, 2017, 07:14:54 AM »

He Who wants do
But He that do not Want always has an excuse.
Good work!
Have you used my program?

2

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: July 04, 2017, 08:08:03 AM »

Dan, I will take a pic of my solenoid, I use two with 48 ohm , they have 30 mm round , with an air core of 10 mm and #32 copper wire. They are a little hard to produce without a winding machine , but with paciente you can do it manually. The solenoids must be between  magnets and three rounds of magnets as this magnet-solenoid-magnet-solenoid-magnet so when you input voltage to the solenoid it will repell itself from the magnets.Its more of a electromagnet constrution inverted and not properly a solenoid.It will not have ferrite or mild steel core , the only iron that i have is in the rolls and they are not even near the magnets or the solenoids

3

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: July 03, 2017, 02:49:14 PM »

The last that i did were 48 oh ms.above 14 vcc it gets a little hot

4

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 10, 2017, 05:40:11 PM »

My First design were Spring , but was difficult to adjust and would Warm too much .Magnets do not weaken do not Break.

5

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 10, 2017, 12:38:33 PM »

The slope of the diamond I calculated so that at impact, which I call impact point, it would be at 90 degrees My coils have 40 ohms, and are calculated to 24 vcc with impact force of 1 kgf
My lever is fixed by two bearings, you feel no resistance, it is super free and it does not move sideways.
As for frequency, it is regulated by hue and pwm, I will try to explain:
If you regulate the voltage input on the lm298 in 10 volts, it will give pulses by the tone at the output of the breakboard, and at the same time it will divide the 10 vcc by the voltage input, so it is, it will impact with more power where She finds the color darker and for less where she finds it lighter.
If I increase the input voltage of the lm298 it will continue at the same pitch frequency, but with more force relative to the voltage input.
Although I'd rather do with 0 and 1000, using my 1 bit bitmap images.
I'm preparing 5 impact heads for my machines, and I'm going to sell some.
I'm also adapting to GBRL, and getting excellent results, although the control software is much simpler than Mach3 and less user friendly, I've already compiled a g-code sender in Visual C #.

6

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 09, 2017, 05:18:20 PM »

New development...colored impact with alcaline pigment that just gets inside engraving.
I really liked it

7

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 09, 2017, 05:12:49 PM »

And when you have a S0 in my board you just have 0 volts, 0 amperes in the coil, the spring and the magnets just pull it up , you dont need iddle , you are using PWM , 0 volts means zero warming, zero iddle .
When you have S1000 you have full voltage in 'x' milliseconds derived from HZ , so you can have up to 5 small impacts in each pixel , so, if I apply 10 vcc in my lm-298 it will cause the  coil to impact 5 times the pixel at 10 vcc , this 10 vcc comes from a dc-dc downloader , if i put 5 vcc it will be the maximun , but if I am doing basalt , i will input even 15 vcc.
My best results in granite are with 10 vcc  , and 1 karat diamonds , if you look carefully you will see that i dis a screw on the body of the diamond ( 6 mm thread) and I have two nuts in the point of the lever, so I can adjust the height of the diamond refering to the granite , this is very important, a long course will get the job slow , I put it to 1,2 to 2 mm according to material.

8

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 09, 2017, 04:58:06 PM »

Hoje much does your Lever moves?
Mine About 1,2 to 2 mm.It does not even stress the wire. As Said i control Just the voltage with a dc-dc downloader I can input 48 vcc but let only 5- 12 go to lm298 , and 2A .
The neodymiun will drastic reduce it's eficiency if you get it too hot , so if you put it on aluminium an fixed it gets a natural dissipation, in my recent machines I even put a cooler.

9

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 09, 2017, 01:43:50 PM »

in this case the image was dithered in black and white , that is the reason, if you choose grayscale on the software you wil have diferent pwms ,
Usualyy the lm298 is used to move two different dc motors by pwm , instead of motors i used coils (solenoids) the way the board oscilattes these pwms by the amount of "S" is the trick.

I can get 300 hz easyly , more than that , the mechanical properties will not work , you will have scratches instead of dots.

10

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: June 09, 2017, 10:34:18 AM »

Just an example of my gcode generated by the same program:
(Grado por Fotoengraving Br v0.1)
(@jun/09/2017 11:12:40)
M5

(Header)
G0 X0 Y0
(Header end)
G90

G21

F5000

G0X0Y0
G1

M3

X0Y0S0
X0.18S1000
X0Y0.18S0
Y0.36
X0.18Y0.18
X0.36Y0
X0.54S1000
X0.36Y0.18S0
X0.18Y0.36S1000
X0Y0.54S0
Y0.72
X0.18Y0.54
X0.36Y0.36
X0.54Y0.18S1000
X0.72Y0S0
X0.9S1000
X0.72Y0.18S0
X0.54Y0.36S1000
X0.36Y0.54
X0.18Y0.72
X0Y0.9S0
Y1.08
X0.18Y0.9
X0.36Y0.72
X0.54Y0.54
If you have an arduino board, then it is something completely different , you should use the LM298 as driver , a dc-dc down to control impact , and so on ,