Messages

1

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: January 05, 2013, 06:03:15 AM »

That interesting, i was just about to try and mark out a pattern into some litho or try to cut it. (if 80w will do that)
I've seen some spray on stuff to mark alli with a laser, but it's so expensive I've not bothered with it.

What adhesive did you use and have you tried it on any other materials ? I've often thought about trying to melt a covering onto a metallic background but haven't had time to try it yet.

Nice work tho. the detail looks good, lets hope it lasts.

  Bry

2

Tangent Corner / Re: Wireless USB Modem

« on: December 24, 2012, 06:02:28 PM »

I have used a usb a extender on a webcam to keep an eye on the cutter from my office, it worked fine for that. However it was removed along with 300 others from sites because they were
unreliable before i got it.

Another option could be a dongle with a aerial socket and put the aerial up the pole.

Or a 3G/wifi router  http://www.solwise.co.uk/3g-routers.htm

Or a Iphone / smartphone with tethering ?

3

General Mach Discussion / Re: Zapp Automation - anyone used?

« on: July 27, 2012, 03:12:38 AM »

I have used them numerous times and they have always been spot on.

 

4

Tangent Corner / Re: There is Nothing like being prepared.

« on: January 02, 2012, 01:08:53 PM »

Someone needs a cookie  

The comment was not meant to cause offense it mealy highlighted the differences in our cultures.
i would not have believed the U.S. could be in such a bad way (still don't ).
The Gun law over here was tighten up as a response to an number of what we would view as unacceptable incidents, multiple murders, this may be common place in the u.s. I neither know nor really care it's not something i need to worry about,
It had a direct impact on my shooting to the point were i didn't carry on with it.
I didn't agree with the new laws, but I live in a real(ish) democracy and as such will abide by them. Just because I think I am right doesn't make it so, neither dose
it give me the right to force my views or religion on ANYBODY.

..........................................................................................

Sting:-

If, "Manners maketh man" as someone said
Then he's the hero of the day
It takes a man to suffer ignorance and smile
Be yourself no matter what they say


Takes more than combat gear to make a man
Takes more than a license for a gun
Confront your enemies, avoid them when you can
A gentleman will walk but never run

...

Here this is humor with a capital H or not if you don't want it to have one that is.
ether way Have  nice day.  

 *WARNING BRITISH HUMOR  KINDLY TAKE IT AS SUCH *


http://urbanlegends.about.com/library/blrevocation_cleese.htm

P.S. don't blame John, apparently it wasn't him.

Have  safe and above all happy new year.

5

Tangent Corner / Re: There is Nothing like being prepared.

« on: January 02, 2012, 11:10:54 AM »

My toolbox has WD-40 a few spanners and a multimeter !

Thank god for the pond.

6

Tangent Corner / Re: There is Nothing like being prepared.

« on: January 02, 2012, 09:51:36 AM »

Wouldn't the equate to about 20 years at her Majesty's pleasure this side of the pond ?

7

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: October 14, 2011, 05:04:11 AM »

yeah, scaled the slots for 1/8 birch ply and cut.

came out at about 12" in height

will probably cut a dragonfly but will take the time to tab it properly first.
That's when i can find the time to do it.

BB

8

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: October 13, 2011, 03:53:33 PM »

Couldn't resist. 

9

Show"N"Tell ( Your Machines) / Re: Diy Laser cutter MK1

« on: May 21, 2011, 11:58:02 AM »

@ Tweakie.

Balsa cuts nicely but as with most organic materials  it's density can vary widely from inch to inch, not much of a problem when you need to cut it but if you want to engrave a rib number on the part going all the way through can weaken  it.
A high power high speed cut gives you a nice almost polished edge, to slow and you get a bit of carbon. A lot of air assist helps with the cut and has the added effect of pushing the balsa onto the bed if it's a bit twisted.
It also leaves behind a nice sticky brown tar like residue, the best things for cleaning it off are cheap and nasty baby wipe from ASDA. ( also available from other supermarkets )

On a safety note don't leave the room if you're cutting balsa, if the air assist fails and the balsa catches light, it will smolder until your left with just ash and a room full of dense smoke. Or possible just a pile of ash and no room.

I fly ARTFs  and the park zone Bind and fly but they never feel as good as flying one you've stuck together yourself though !


@jonny quest

Get it out the basement, build a plane. attract it to a couple of bits of wire, and the spin round on the same spot as fast as you can until you puke !
How much fun can a boy have ??   What ya waiting for dude 

@jjenkinsruthie

Q,  where did you get the laser?                                     A, The peoples republic of China.
Q, what is the thickest wood material it can cut?              A, depends on the wood, up to 1/2" balsa, after that it looks too messy, 1/8" bitch ply, probably 1/4" birch ply although i've not tried that yet.

http://www.youtube.com/watch?feature=player_profilepage&v=cjye-hShux4

The above is 1/8" ply.

the end result.

BB

10

Show"N"Tell ( Your Machines) / Re: Diy Laser cutter MK1

« on: May 13, 2011, 02:19:46 AM »

Neat idea using the RC fuel filter in your air assist feed. 

Tweakie.

Jungle engineering at it's best eh ! It was the only thing i could find in the workshop that would fit, i did cut a thread in it though it's not just superglued in. 

The one real problem i have now is corner speed, mach slows the head down to get a square cut on the corners, this is all fine and dandy if you're using a spindle and bit but on a laser it will make the cut deeper or give you over burn.

Is there a way to link spindle speed to head speed ? If so is there an easy way to set the ratio, as different material will require different setting?