Messages

21

Third party software and hardware support forums. / Re: ST-V2 5 axis breakout board

« on: May 28, 2017, 10:42:41 PM »

Hi,
    Can anyone tell me what chips are those arrowed in Red? is it related to opto isolator chips?
[/URL]

thanks,

22

General Mach Discussion / MIL Contacts Insert

« on: April 29, 2017, 02:04:22 PM »

Hi all,
        I'm looking for this type of Contact Inserts for my HSd spindle:
http://www.cncpd.com/wp-content/uploads/2016/09/HSD-Connector-Kit.jpg

Does anyone know where can I buy those MIL inserts?

Thanks,

23

General Mach Discussion / Workshop + Automation

« on: February 19, 2017, 01:25:21 PM »

Hi all,
        I'm planning a new project ahead and would like some feed back from this forum. There's a possibility of converting our garage (5 by 8 meters) in to an automated workshop where it will produce small volume of parts and have those parts delivered to customer. Has anyone in this forum converted their garage to a semi or full automated metal workshop?

24

General Mach Discussion / Re: Kress FME-1050-1 + Inverter?

« on: January 08, 2017, 04:14:33 AM »

Hi Craig,
            Those high speed spindle were imported from Italy and I sold them to customers in Taiwan, the spindle matches Inverter from the same company but some user do not need 24000 rpm therefore I offer them Delta VFD-B series Inverter max frequency = 400Hz = 12000rpm, around 19000NTS (Taiwanese Dollar).
My electronic skill may not be as good as yours, I can create a pcb boards using Diptrace then have the PCB board done by someone, but designing a electronic circuit specially programming is not my thing.
I remember 6-8 years ago I purchased 3 DC servo board from a guy called ULI, he is the maker of UHU, those were great boards, but none of boards aren't working now, short circuit!.
Also Gecko Drive, G320, spent quite a lot on those servo product back in those years but I still prefer Industrial grade AC servo Motor they last long.
Looking forward seeing your Servo boards soon,

Cheerio,




           

25

General Mach Discussion / Re: Kress FME-1050-1 + Inverter?

« on: January 06, 2017, 03:06:01 AM »

Thank you guys for the feedback.
@Craig, as long as the spindle cuts wood is good enough for me and the weight has to be under 3Kg(spindle + atc module).
I'm familiar with high speed spindle, HSD 919A, is 24000rpm at 800Hz with atc, very nice spindle:


"If you want good torque at low speeds ie metal cutting using a servo type motor is a good way to go, medium size servos, say
1kW are often rated to 3000 rpm is a torque of 3.2Nm. That enuf to cut steel in moderate cuts with a 10-12mm tool. Still
have to provide spindle/bearing and toolholding."
This reminded me of my previous post on cnc lathe conversion: http://www.machsupport.com/forum/index.php/topic,24686.50.html
Servo is a good option too but expensive.


"I bought a second hand servo of Ebay good for 14Nm up to 3000rpm for $300 US including shipping, a bargain. Downside is
I cant buy a drive for it, or least a drive I can afford. I'm making one. If I'd known just how complex a job that is I probably
wouldn't have started. Mind you I have had to learn ALOT about all sorts of things along the way so you can say that
this hobby is good for me. Not that I've even been good, and I'm not sure I want to start now!"
Oh man! you are making one  , is very complex electronics specially the PID control!!, it would be better off just buy one from the net, I'm familiar with Mitsubishi MRJ2S.

26

General Mach Discussion / Re: Kress FME-1050-1 + Inverter?

« on: January 05, 2017, 01:25:48 PM »

Thank you Craig for the explanation.
I will take into consideration whether to use a dimmer to control the speed of the Kress motor or alternatively use a Chinese Spindle + Inverter and feed analog input to the inverter which sound quite complete.

thanks,

27

General Mach Discussion / Re: Kress FME-1050-1 + Inverter?

« on: January 05, 2017, 06:27:47 AM »

Hi Craig,
            Thank you for the notice.
My plan is to control Kress spidle's speed via analog module 0-10VDC where 0VDC = 0rpm and 10VDC let say 20000rpm, any suggestion if there's such controller board exist?

thanks

28

General Mach Discussion / Kress FME-1050-1 + Inverter?

« on: January 04, 2017, 02:53:26 PM »

Hi,
   I google searched on Kress FME-1050 speed control via Inverter and the closest link is:
http://www.8020cnc.com/improved%20cnc%20spindle%20speed%20controller
I know cnc4pc used to sell a AC speed controller but is not there anymore.
I'm thinking of modifying the"Electronic Speed Controller for Kress 1050 FME Spindle Motors" : http://cnc-plus.de/en/Spindle-Motors---Spare-Parts/Spare-Parts/Electronic-Speed-Controller-for-Kress-1050-FME-Spindle-Motors-.html,
but need more info on how this "Electronic Speed Controller for Kress 1050 FME Spindle Motors" works, my idea is to use analog 0-10V to speed control the Kress spindle. The 0-10v comes from a Wago Analog module and this is fed to a Inverter which turn the motor to a speed depending on voltage output. Most of the Inverter are either 1 or 3 phase input and 3 phase output, could not find a 1 phase output 220vac.
Does anyone know if there's any Inverter that output 220VAC single pahse?

Thanks,

29

General Mach Discussion / Re: Pen plotter, rc servo up and down?

« on: May 13, 2015, 09:32:50 PM »

Thanks to both BR459 and Joeaverage.
Looks like there are more info. on Solenoid than RC servo. Will go for Solenoid 1st then RC servo.
Did a search on solenoid for Mach3, for z axis up and down some people use M code (coolant or mist), I think I will use DIR to switch up and down via a relay, so when relay is on the pen goes down and off the pen goes up, so when Z= -1 then pen goes down and Z=6 pen goes up.
Below is an gcode example for engraving:
G00 G49 G40.1 G17 G80 G50 G90
G21
(Engraving)
M6 T3
M03 S2000
G00 Z6.0000
X75.0000 Y0.0000
G01 Z-1.0000  F300.0
G17
G03X-75.0000I-75.0000J0.0000 F400.0
X75.0000I75.0000J0.0000
G00 Z6.0000
M5 M9
M30
 please let me know what you think.

thanks,

30

General Mach Discussion / Re: Pen plotter, rc servo up and down?

« on: May 12, 2015, 09:04:51 PM »

Thanks BR549.
Before I ask where I can get this "step/dir to pwm" board?, couldn't I use spindle output and pwm control in spindle setup?