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Messages - kibodwin

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1
General Discussion / Re: bbc article on Dehli polution!!
« on: November 12, 2018, 12:55:22 AM »
I think quite a lot comes from burning the unused crop bits left over from harvest. This was banned in the EU decades ago. The tuc tucs dont help. Last time I was there I went to a poorer part of town and saw people burning their cloth to extract the silver and gold thread.. It stank to high heaven and was quite a sad sit to behold.
The really sad part of it is that there is no solution in sight...

2
General Discussion / bbc article on Dehli polution!!
« on: November 09, 2018, 01:46:37 AM »
I saw this and thought something is wrong...
https://www.bbc.com/news/world-asia-india-46135764
poor kid, top row second from the left... there are no filters on his 3M mask...

=(

3
Projects / Re: 2018 Christmas craft fair
« on: October 31, 2018, 04:14:48 AM »
Both very nice...
If I can find the time I will try make some tree decorations, the ones you fit together to make them 3D
something like these;
http://cartonus.com/christmas-tree-ornaments/
Sell loads and you might be able to afford that nice 100W laser!!!
=)

4
As above, but here are a few tips;
Make sure the acrylic windows you use is rated for the wavelength of your laser (so it blocks the correct wavelength of light to protect your eye balls). I have not put a window in mine, I use a webcam to monitor the burning instead...
Try and make sure you have plenty of negative pressure when extracting the fumes as the small of burnt will seep out of the enclosure if you don't have a more than adequate fan and CFM rating. The supplied fan is not up to mustard. Do not seal up the case, allow the gaps to supple the air in part of the extraction so the air moves from outside your case to inside to outside.
There are loads of frames / cases here with different materials. I would personally make sure the material does not melt if in the path of the laser (ie if you engrave something shiny the reflection will not melt your enclosure!).
I would make sure the enclosure is high enough for a rotary tool from the off as you would have to rebuild the enclosure to accommodate one if you added one in the future).
Let us know how you get on and pictures would be cool
=)

5
General Discussion / Re: Quick and Cheap Laser Cover
« on: October 16, 2018, 12:47:10 AM »
my suggestion to tape up the edges was to stop and light from leaking!! evacuating the smoke is also important but I was more worried for your eyes!!
Nice result
=)

6
General Discussion / Re: Quick and Cheap Laser Cover
« on: October 15, 2018, 05:22:42 AM »
careful with the little gaps along the sides... perhaps some thick tapa (electrical type) might help seal up the edges..
but nice and clean, well done.

7
Projects / Re: Veneer Cut Cards
« on: September 25, 2018, 12:35:35 AM »
nice, well done!
=)

8
Projects / Re: Slate Coasters
« on: September 25, 2018, 12:34:55 AM »
or it could be the natural finish from when they cut and split the slate...?
=)

9
Engraving / Re: Upgraded Stepper Motor Driver (TMC2130's)....SO QUIET
« on: September 24, 2018, 04:16:16 AM »
I was thinking of replacing the ones on my 3d printer with the TMC2130's...
anyone done this??
Maverick, you sound so happy with the change, was it just a straight swap or did you have to configure / setup the TMC2130's before they could work properly?
=)

10
Projects / Re: Slate Coasters
« on: September 24, 2018, 01:32:37 AM »
If you buy nice thick slate coasters you can sand any images off and start over, I found this to be very useful when engraving pictures as they are more complicated (sometimes you need to invert the black / white for the picture to look human!).
This way if you have a test piece of slate you can sand it and keep testing on the same piece of slate, I use a belt sander, careful of the dust produced!
Nice results, well done!

11
Engraving / Re: Engraving on Ultra-Thin Veneer
« on: September 21, 2018, 03:17:48 AM »
I have an ongoing project (arn't they all!) to engrave Arabic style patters into wood veneer to create laser engraved lampshades.
The trick I need to figure out is how to engrave without only leaving the wood fibres. I find it tricky to get the power setting just right. I have so far only tried on the K40 so it might be easier with the 2.5w diode. I will run some tests over the weekend if I can find some time and report back.
The veneer is very thin (less than 0/5mm) so I am also looking to engrave the pattern on one sheet of veneer and then use another as backing but not sure the light will shine through 2 layers of veneer. Perhaps you could also try this with your thin veneer..?
=)

12
Inspiration / Arabian Geomatric Patterns
« on: August 13, 2018, 09:15:16 AM »
This is a copy of the cd that comes with the Arabian Geomatric Patterns book by pipin books press. The rights on the images of the book are 'free' as in they allow you to use them to print t-shirts and other uses so I feel ok posting here. I use them with the kids to create all sorts of art but ultimately I got this to make laser engraved lampshades out of wood veneer.
Arabian Geomatric Patterns
https://wetransfer.com/downloads/23e45133ce125c902918d633638e129e20180813143104/f69e91cc6cb31580a5771053d758e4af20180813143104/efffdf
400mb
I can reupload if needed.
An example of the patterns is attached.
If you are interested in this sort of mathematical patterns then I strongly advise you get this book, it is not as expensive as I would have thought at around 16pounds uk.
 
=)

13
Projects / Re: Colorfull coasters - The Idea
« on: August 08, 2018, 06:40:52 AM »
I have done something similar... I engraved the whole design as deeply as I could and then masked off the parts I did not want painted the colour I wanted, painted, masked off the painted part and any other part not wanted to paint and continued. It would depend on your design though. when finished painting, sand and seal.
Worked ok as I only wanted different coloured letters...

14
Projects / Re: Typographic designed LP Record Clock
« on: August 06, 2018, 02:34:50 AM »
amazing result. well done.
I now need one of those '13 minutes" lasers...
=)

15
General Discussion / Re: soccer football world cup 2018 rant.
« on: July 06, 2018, 05:25:29 AM »
Give it a few days ggallant571, someone will post a super interesting project we will all be jealous of and want to recreate!
=)

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