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LAN_403

dmg

Fri Jul 01 2011, 02:02AM

Registered Member #2628 Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627

Got a hold of a 1W> 532nm laser system (judjing by the model/make, should be outing anywhere from 1.3W-1.8W).

Need to get some optical power readings later.

4HVpost2

Adam Munich

Fri Jul 01 2011, 02:05AM

Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242

HOLY JEEBUS!

How much $$$? I want it.

dmg

Fri Jul 01 2011, 02:09AM

Registered Member #2628 Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627

*gulp* I don't even wana say.
(suprisingly, pretty cheap for what it is and how much they usually go for).

PM sent.

Dr. ISOTOP

Fri Jul 01 2011, 03:52AM

Registered Member #2919 Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652

Get some blue (dirt cheap) and red (less so) and make a projector!
Gogogogo!

Dr. Drone

Fri Jul 01 2011, 04:59AM

Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673

dmg

Fri Jul 01 2011, 05:44AM

Registered Member #2628 Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627

bwang wrote ...

Get some blue (dirt cheap) and red (less so) and make a projector!
Gogogogo!

That, minus the red. (B/G projector)

I have some 35K scanners on hand, and am working on a large knife-edged 445nm array to ballance out the green. might throw in a 200mw-300mw 650nm/660nm for shits and giggles.

Conundrum

Sun Jul 17 2011, 09:13AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062

Interesting stuff:-

1) Homemade EL using old DVDR disk split down and treated with boric acid electrolysis then coated with phosphor.

2) Hacked EL T-shirt so all pixels independently controllable by careful use of HV to "split" the ITO inside the panel.

3) Really ancient analogue meter

4) Macro shot of the CCD linear sensor from an old HP AIO scan head.

5) No comment!

-A

rp181

Mon Sept 05 2011, 06:09PM

Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529

[deleted]

Conundrum

Mon Sept 05 2011, 08:07PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062

Box o'bits being sent to fellow 4HV'er.

-A

Hon1nbo

Thu Sept 29 2011, 03:07PM

Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042

Some photos from a CNC machine I am currently working on in a lab. The machine was built by a mechanical engineering student here a few years ago, then he dropped engineering all together. I was given the task of restoring this machine, and so far I have seen: some of the worst wiring in my life (but hey, he was an ME student, not an EE); motor shafts bent (that's right, not out of alignment, BENT); encoders without wheels on the inside; an arcade style E-Stop button that didn't do its job; parts harvesting with no apparent regards for safety (someone removed something that used 120V. They left the 120V lines free hanging inside the all metal control box and also didn't bother to label it or tell anyone they did anything with it); and the X axis in motion scrapes against the steel support frame, which has standing legs that are not of all equal lengths.. Needless to say I've had my work cut out for me.

But it will be worth it. I may not own the machine, but I have 24 hour access to the lab with it and freedom of use and modification as long as I don't break the expensive motors.

It has an Optical Grade XY table, I just installed 900W AC Servo Motors for the XY, and am planning on an at least 400W AC servo for the Z-axis; we have a copy of Mach, and every CAD software imaginable on the school machines and I have the entire Autodesk suite on all of my personal computers to design things at home; the homemade varieties of CNC machines with these motors have achieved unbelievable results of milling 1/2" Aluminum with a 0.001" tolerances (with pics and vids to prove it BTW). And that's just what they've documented in their logs, I could maybe even push it more!

Anyways, the photos.

The X axis drive screw and the magnetic limit and home switches.

1317308243 902 FT6000 Limit Switches Lead Screw Resized

The shiny new motor control board to replace the Frankenstein'd rats nest of wires (of which I have no pics, but I wish I did now). The board supports four axis, and an X' axis; limit switches for each axis, e-stop; power conditioning; etc. Then each of the motor drivers are also mounted. You can also see the new E-Stop switches, which are a huge step up from a big read Arcade game button that didn't work.

1317308243 902 FT6000 Motor Control Board Resized

One of the 900W AC servo motors mounted to the table. I may have to remake the aluminum mounts as I changed the gear sizes and may not be able to get the right size belt.

1317308243 902 FT6000 Mounted Motor 01 Resized

A photo of the Z-axis sled, with the Stepper motor that was already installed, but will be replaced by a smaller version of the XY motors once the rest of the table is ready (we didn't want to blow all of the $1k budget at once, and we hadn't picked a milling tool yet which could make a difference).

1317308243 902 FT6000 Z Axis Sled Resized

-Jimmy

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