Dear Readers,
The most frequent question from peoples when we attend exhibitions are : "After engraved, what color it will be ?"
Ok, I will go back a little to make the same perspective. Engraving is not the same with printing. In printing, we put pigmented ink to media's surface, but in engraving, we scratch the surface.
If there is some colors produced, it's not because of inks, it's because of burnt effects, or, in surface-coated media, we only remove the coating layer and show the original color of media.
Hope it won't make you confuse.
Regards,
Versi Bahasa Indonesia
Monday, July 28, 2008
Power oh power (part 2)
Dear Readers,
There are something to remember, that adding protections means additional costs, without adding quantity nor quality in your production line. But, the costs you pay will be paid back plus some benefit, that can be saving in energy used until lifetime of your machine.
So, please consider it.
Regards,
Versi Bahasa Indonesia
There are something to remember, that adding protections means additional costs, without adding quantity nor quality in your production line. But, the costs you pay will be paid back plus some benefit, that can be saving in energy used until lifetime of your machine.
So, please consider it.
Regards,
Versi Bahasa Indonesia
Thursday, July 24, 2008
Power oh power (part 1)
Dear readers,
Most of us think that every electronic equipments can work well if we can supply power to it.
Hold on a second, is it true? Perhaps the answer is yes 20 years ago, where the power supply made from transformer. The size of the transformer depends on the current we need to supply the equipment. For 30 Amperes, then you will get a big an heavy transformer and with power factor of 75% or less.
Confuse ? I'll try to made it simple, The bigger "watt" we need for our equipment means the bigger wire we use to make transformer and the bigger and heavier iron core we use for transformer. It will make the machine more heavier, hot, and unfortunately, with the power factor 75%, it means that we can only use 75% of power that have been transformed for our machine. If we measure the machine will consume 1000 Watts, actually the machine only consume 750 Watts, where are the rest of consumed watts? It will transformed to heat on the iron core of transformer and in the wire.
That is the minus effects of conventional power supply. The plus side is, it can reduce surge (a sudden change in voltage that happens only in short period), because of magnetic coupling it used to transform electricity power to the value suitable for our machine, or, with other words, magnetic coupling will respons slowly to the voltage change that happened in short periods.
Nowadays, all the electronic industries using Switch Mode Power Supply. It use electronic switching technology to provide certain value of power to supply our machine. It has better power factor, less weight, cheap, large range of voltage variations that can handled and so on.
But one of the critical disadvantage is they are very very influenced with the quality of electricity we supplied. I know that from electricity company, they never shut the power down, this is not the quality that I mean.
Many factors can affect the quality of power in our workshop. Automatic start and stop of air conditioning machine, running drill machine, loosen connectivity in the wire, etc. This will add all kind of noise and irregular effects on the electricity we supplied to the machine.
All these effects many times can be handled by filter in the power supply circuitry, but remember, every electronics component have a certain maximum value and they also have degradation because of extreme conditions. It means that you can say your machine running well until someday, without any previous sign, your machine stop working and it has fatal damages. Imagine your kidney, it will continue to work until it's damage reach certain value then you will feel that's a problem with your kidney, and usually it's critical. It's almost the same with electronic components.
I found a good resources from reputable company that sold many electricity protection system all over the world, take a visit to http://www.apcc.com/power/power_event.cfm
Most of us think that every electronic equipments can work well if we can supply power to it.
Hold on a second, is it true? Perhaps the answer is yes 20 years ago, where the power supply made from transformer. The size of the transformer depends on the current we need to supply the equipment. For 30 Amperes, then you will get a big an heavy transformer and with power factor of 75% or less.
Confuse ? I'll try to made it simple, The bigger "watt" we need for our equipment means the bigger wire we use to make transformer and the bigger and heavier iron core we use for transformer. It will make the machine more heavier, hot, and unfortunately, with the power factor 75%, it means that we can only use 75% of power that have been transformed for our machine. If we measure the machine will consume 1000 Watts, actually the machine only consume 750 Watts, where are the rest of consumed watts? It will transformed to heat on the iron core of transformer and in the wire.
That is the minus effects of conventional power supply. The plus side is, it can reduce surge (a sudden change in voltage that happens only in short period), because of magnetic coupling it used to transform electricity power to the value suitable for our machine, or, with other words, magnetic coupling will respons slowly to the voltage change that happened in short periods.
Nowadays, all the electronic industries using Switch Mode Power Supply. It use electronic switching technology to provide certain value of power to supply our machine. It has better power factor, less weight, cheap, large range of voltage variations that can handled and so on.
But one of the critical disadvantage is they are very very influenced with the quality of electricity we supplied. I know that from electricity company, they never shut the power down, this is not the quality that I mean.
Many factors can affect the quality of power in our workshop. Automatic start and stop of air conditioning machine, running drill machine, loosen connectivity in the wire, etc. This will add all kind of noise and irregular effects on the electricity we supplied to the machine.
All these effects many times can be handled by filter in the power supply circuitry, but remember, every electronics component have a certain maximum value and they also have degradation because of extreme conditions. It means that you can say your machine running well until someday, without any previous sign, your machine stop working and it has fatal damages. Imagine your kidney, it will continue to work until it's damage reach certain value then you will feel that's a problem with your kidney, and usually it's critical. It's almost the same with electronic components.
I found a good resources from reputable company that sold many electricity protection system all over the world, take a visit to http://www.apcc.com/power/power_event.cfm
Dust, dusty and dust maker
Dear readers,
Laser engraving will produce dust, with very small particle that can harm your health if not handled properly. During engraving and cutting process, dust (and fumes) will spreaded all over the machine. That's why we need good suction pump and filter.
A good filter, not only for eliminate dust, but also to eliminate odor that produced in engraving / cutting process. This is to ensure that we work with care to our environment, to save the earth that we borrow from our children.
Basically, laser tube must be handled in the isolated dust-proof room to prevent damage. On the contrary, this machine produced a lot of dust while in working progress. That's why we need to check and clean all optics often.
A dusty machine, not only became trouble maker, but it can brings you to loose your valuable investments. A simple yet regular proper cleaning and maintenance will help you out of these.
Hope you're doing well with your machine.
Regards,
Versi Bahasa Indonesia
Laser engraving will produce dust, with very small particle that can harm your health if not handled properly. During engraving and cutting process, dust (and fumes) will spreaded all over the machine. That's why we need good suction pump and filter.
A good filter, not only for eliminate dust, but also to eliminate odor that produced in engraving / cutting process. This is to ensure that we work with care to our environment, to save the earth that we borrow from our children.
Basically, laser tube must be handled in the isolated dust-proof room to prevent damage. On the contrary, this machine produced a lot of dust while in working progress. That's why we need to check and clean all optics often.
A dusty machine, not only became trouble maker, but it can brings you to loose your valuable investments. A simple yet regular proper cleaning and maintenance will help you out of these.
Hope you're doing well with your machine.
Regards,
Versi Bahasa Indonesia
Monday, April 14, 2008
High Watts = The Best ?
Dear Readers,
Imagine that you will weld 2 metal plates together, should you use welding machine for welding steel bar at building constructions? The plates will melt.
So does the "watts" of the lasertube. If you only need to engrave and cut 5 mm thick of acrylics, you don't need laser power more than 60 Watts.
For general, higher power of laser can cut 'thru thicker material, but it will lacks the details for engraving.
So, choose the power wisely before you sign a deal with laser dealer.
Regards,
Many times people assume that, if they buy a high watts of laser power, it means they will get faster machine and better machine. This false perception is completely wrong. How many watts does not correspond with cutting or engraving speed, nor, the fine results.
Imagine that you will weld 2 metal plates together, should you use welding machine for welding steel bar at building constructions? The plates will melt.
So does the "watts" of the lasertube. If you only need to engrave and cut 5 mm thick of acrylics, you don't need laser power more than 60 Watts.
For general, higher power of laser can cut 'thru thicker material, but it will lacks the details for engraving.
So, choose the power wisely before you sign a deal with laser dealer.
Regards,
Thursday, March 27, 2008
Different Inch, what's the difference?
Dear Readers,
By dealing with lenses, we must face to the focal-length, what afftected by the focal length?
Explanations below might be can give a better understanding for you, why peoples creating different focal length, of course with it's minus and plus side. For the short, choosing lenses must be synchronized with the applications will be done.
The picture above shows beam-path from the lights, in this case are laser beam, which pass thru the lenses and the focused results. Pay attention to the crossing sections. The larger focal-length, the more steep at crossing section, as physics law told us.
If this applied to the material being cut :
The results are not straight, remember, we are dealing with lights, not knife ! If you enlarge the result will be as follows :
Lens with larger focal-length will give cutting track almost perfect. It will never perfect, unless you have time to spend for abrasing the excess parts.
There is another way to make it "looks like" straight, by shifting focus point to the middle of material thickness :
There is another things to be consider, the larger focal length of lens, the larger spot-point they have.
So, we need to choose which lens should use for certain applications.
Vesi Bahasa Indonesia
Regards,
By dealing with lenses, we must face to the focal-length, what afftected by the focal length?
Explanations below might be can give a better understanding for you, why peoples creating different focal length, of course with it's minus and plus side. For the short, choosing lenses must be synchronized with the applications will be done.
The picture above shows beam-path from the lights, in this case are laser beam, which pass thru the lenses and the focused results. Pay attention to the crossing sections. The larger focal-length, the more steep at crossing section, as physics law told us.
If this applied to the material being cut :
The results are not straight, remember, we are dealing with lights, not knife ! If you enlarge the result will be as follows :
Lens with larger focal-length will give cutting track almost perfect. It will never perfect, unless you have time to spend for abrasing the excess parts.
There is another way to make it "looks like" straight, by shifting focus point to the middle of material thickness :
There is another things to be consider, the larger focal length of lens, the larger spot-point they have.
So, we need to choose which lens should use for certain applications.
Vesi Bahasa Indonesia
Regards,
Friday, February 15, 2008
Font Designer
Dear Readers,
Sometimes you like to design your own fonts. There are so many font editor right now, but if you only need it for single use, you don't have to buy it. Windows XP has built in font editor, which never publish yet.
Click on Start-Run and type 'eudcedit' (without quotes) and press enter.
C' ya...
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