The first lens looks bad but its just on the sides, the area where the beam hits looks fine so maybe it will work anyway. Try it on a piece of paper at low power settings so you can see the shape of...
Type: Posts; User: dar303
The first lens looks bad but its just on the sides, the area where the beam hits looks fine so maybe it will work anyway. Try it on a piece of paper at low power settings so you can see the shape of...
Wouldn't it just take a plugin like the Smoothstepper uses for Mach to control this? But instead of step/dir and i/o coded and sent via USB this sends its output to an RS485 interface?
Cool...
Another good solution I have seen to get around the offset problem of the beams is to use two single line lasers 90 degrees apart. They can be bought for a few dollars at dealextreme.com.
I will use...
Hi,
Interesting thread! My motors on G540 with 36V chinese switcher psu also buzz, all I had was a 6000uF capaitor but that did not help at all so I just lived with it. Resistors are in 9pin dsub...
Hmm, the usual way to convert pwm to volatge is a low pass filer consisting of basically a resistor and a capacitor, even cheaper than $2!
Also, you may get pretty bad frequency response using the...
Check out Granite Devices drivers, can be used with AC, DC, linear motors and steppers and are cheap. The creator of this drive is on the forum and is a very helpful guy.
Granite Devices | A Servo...
sellers linearmotionbearings or nice anna on eby.
I asked the same question om the artsoft forum, check it out: Anyone here tried dual spindles on their machine?
My thought is that when i'm finished with the machine i'm not likely to take it apart again (will be making chips instead!), better to do it the best I can from the start!
I'm located in...
Hi,
Me and a friend started building an all steel fixed gantry mill a couple of years ago. We based it upon ISEL components I was given at the time.
The frame is very sturdy and eveything is...
Here are a couple of pictures:
http://forumbilder.se/images/884201082945Af8c0.jpg
http://forumbilder.se/images/f84201083251Adeef.jpg
http://forumbilder.se/images/8d82010120226953b.jpg
(If this is in the wrong section just say so and I'll delete/move it)
Hi,
I have a 60.000RPM GMN spindle with pneumatic ATC from a PCB drill that I realized I will never use so I wonder if...
Buy a thermal laser power sensor on ebay, sometimes 100-250W ones are available very cheap.
Some of them can be directly connected to a voltmeter for readings but other require a simple amplifier...
I want to mount the laser directly to the gantry and not have it outside the machine using mirrors etc.
It works ok now (with no beam expander, just focus lens and air assist nozzle) but minimum...
Good links, thank you!
I want a larger beamsize before the collimating lens so I can have the optics closer to the laser, ie no flying optics.
Hi,
I have 16W Synrad 10,6um that has a 4mm output beam diameter. My focus lens is 12,5mm and I would like to have a bigger beam to optimize focus spot without resorting to placing mirrors to get...
Wow, very nice build!
I wish I hade the equipment and skills to make one of these for my EMCO CNC-lathe!
I'll try the program when I buy my spindle+vfd.
The seller is on Ebay and is called love-happyshopping. :)
a funny and not soo serious-sounding name but he/she/they have a god reputation and...
Smart idea! Post a picture or a video of it in action! What kind of laser do you have?
I'm building the rest of the machine myself and will propably have a rigid frame to mount the Z-axis (with the...
Nice work!
Strangely enough I built a cutting nozzel wit air assist yesterday too!
Here it is:
The nozzle is made from a 30mm diameter and 45mm length of aluminium round stock.
I have a...
maybe you should try a small diode laser? a 10W 808nm ir laser can be found cheap on ebay and optics are not especilly complicated either. no watercooling, hv or fragile glass parts and only a hekto...
Hi, I have been absent from the forum a while, nice to see some posts in this thread!
My machine is home built and not completed yet. Is going to be a machine with a fixed portal with a Z axis with...
Hi,
Has anybody tried to make their own cutting nozzle with air/gas assist for their CO2 laser?
I have a 16W Synrad and a 50mm focal lenght lens that will need som air assist to protect the lens...
Thanks for the tips!
Those drives looks expensive, I'll look around and see if I can find any second hand ones on Ebay.
I guess there isn't any hobby-level motorcontroller that can be used, this...
I managed to aquire a GMN 60.000 rpm spindle from a scrapped PCB-drilling machine. They threw away the drivers and electronics so I need to find a new driver.
This is printed on the spindle:
...
Thanks for the offer Eduardo! I will know if I get the laser in about a week.
I got these pictures:
the laser:
http://img352.imageshack.us/img352/4387/yaglaserrh7.jpg
The lamp housing & rod:
http://img175.imageshack.us/img175/9605/pumphusvk4.jpg
Hi,
I may get a used YAG-head really cheap.
The laser is an Spectron Laser Systems and is marked "180W CW / 35mJ"
I'ts just the head with engraving galvos and I'm wondering about the needed...
Zoltan: I'm glad that you got your laser ok!
I chickened out of buying the 10W Synrad that the guy also had for sale because I didn't know if the was a good trader...and it went for 300 Euro!...
Here is the operators manual/service manual for synrad 48-1-28(W), 48-2-28(W), 48-5-28(W) where good info about control signals and schematics can be found:
Read from 2.4.1 for info on tickle and...