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Messages - kibodwin

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T2 Engraving / Re: Help needed with this design
« on: December 12, 2018, 01:20:17 AM »
I took a quick look online also and the one you have seems to be the only one in B/W. The colour pictures of this badge are not easy to convert to B/W as the stags head is in 3D and difficult to photograph.
It might be worth contacting the regiment to see if they have a better quality picture.
This might help;
7th (51st Highland Volunteers) Battalion - Stay Reserve Light Infantry - Perth
Hope this helps

Engraving / Re: Store bought chopping boards coating?
« on: December 10, 2018, 02:22:22 AM »
I would (as always) agree with Zax..
If there is a coating it should be a light oil and a quick sanding should get rid of most of it but YMMV.
It should I hope also be a foodsafe coating, it is a chopping board after all so it would most lightly be boiled linseed oil or similar.
I would be surprised if they coated them in something to protect them in shipping as then you would need to clean it before use, not something most people would do... and if they did I would hope they have a label telling you to clean it before use...


General Discussion / Re: Pull down resistor
« on: December 04, 2018, 02:34:59 AM »
well done...
no, please dont take it badly, this is not the intention at all...
but this might help;
looks like you used a smidge too much solder.

General Discussion / hackaday article on a 'auto' focus bed for K40 lasers
« on: December 02, 2018, 12:33:47 PM »
found this;
a very cunning idea that I might just have to use!!

General Discussion / Re: market sales
« on: November 19, 2018, 05:34:57 AM »
I get the thick slate coasters (about 1cm thick) and sand them clean after a failed engraving on the belt sander.... creates a he** of a lot of dust but means one less trip to shop. I also find that I need to invert the black / white to get anything decent out of engraved photos (especially of peoples faces).

General Discussion / Re: market sales
« on: November 19, 2018, 04:14:20 AM »
I also do this as a hobby but as far as all my 'clients' are concerned it is definably word of mouth. It is surprising to get contacted by the friend of a friend of a friend who wants something special.
I would also think that having a stall in a market (Christmas period markets?) would work well, I even thought of setting up the laser at the stall for on the spot engraving with a small power generator.
I don't ask for anything at all for what I do and sometimes provide the materials for free, especially if it is a different material I can learn something off. I do however ask if they can take care of the design aspect as I think this is the most difficult to get right ( my idea of what they want is not necessarily their idea of what they want). I am not very good with graphic designing either!
I have read here that you should fix a price and add something like 10% - 20% (or more) to cover costs. Makes sense to me as I would always undervalue my time and material... you can always revise your costs downwards!
I had thought of hiring a student (or similar, someone with time) and get them to run jobs for me and get more use out of the laser... but I am definably sure that this is not worth while financially. A family member might be an idea for free help... dare I say your wife...? =)
Good luck with it all, sounds like if you sound soon be able to afford a new more powerful laser!!

General Discussion / Re: paper / cardboard box generator
« on: November 19, 2018, 01:02:16 AM »
I plan to use some of these designs for present wrapping!!

Engraving / Re: Engraving on paper FAIL
« on: November 15, 2018, 12:17:36 AM »
I agree with Zax, coloured paper work well depending on the 'darkness' of the paper. I have not been able to engrave greyscale onto white paper but have onto coloured paper / card...
The thickness will also play a part, I now only use the card dividers from my kids school binders, they work great. Normal printer paper is difficult to engrave and burns easily... you might try going very fast over it in several passes?
I even tried gluing the paper to wood but this also did not work.

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...

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


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;
Sell loads and you might be able to afford that nice 100W laser!!!

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

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

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.

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

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