Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: josh on December 07, 2009, 01:13:11 AM
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does any one know how do I go about making my monitor a touch screen.
or do I have to buy a touch screen monitor
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For about $100 you can buy a touchscreen panel that you can put over your monitor. On some monitors, there is enough room to put the panel inside the monitor case. It connects by USB, and interfaces to the system as a HID device (mouse). There are lots of them on E-Bay.
Regards,
Ray L.
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Acer has a 23" Touchscreen that I have been considering. I think a problem may exist insomuch that this monitor only works under W7. I need to do some more digging. Of course my search started on a Saturday evening so I will have to wait until Monday to go see this device in person. If this screen is 23" wide, that would make a wonderful slate for a number of functions to visible and the buttons could also be fairly large.
These are only my own speculations. I really am quite new to all of this, and as such, it makes sense to me to have the most control over the machines' functions as possible. -ESPECIALLY THE ESTOP!
This is a description that should lead you to a web page of sorts:
Acer T230H Bmidh 23IN Widescreen LCD Touchscreen Monitor 1920X1080 80000:1ACM 2MS VGA DVI HDMI Black
Cheers! Rich.
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I too would be interested in the touch screen scenario.....
Any one using this yet?
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Not yet. Still looking around. The Acer model Is , from what Ive been told some sort of 19inch monitor with a perimeter of "touch space" I don't know how true this is.. I have yet to see this monitor in person. I'm going on what the "useful" salesman told me... which wasn't much and I could hardly understand him so....
Other than that, I have found a company called Keytek or keytech and they have monitors as well as touch sensitive overlays. I think I will wait for the real McCoy - a true glass faced screen that is touch sensitive everywhere...
I did find this type of monitor but they are still around 1500 bucks.. Too much if you asks me... If you find out anything, do post it here... Also learned that there are at least three different types. Two of which are reistive touch and another called Capacitive touch. Both have different applications. I still need to learn more about these. anyway.. still hunting around... If I do this, It may happen this year.
Happy new year!
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I have touch screens on all my machines, three use resistive overlays and the other a capacitive one. The Capacitive has a glass front the resistive a flexible. Not much to choose between all of them but I would say the resistive are slightly better. The flexible front seem to stand up well, I have had one for over 4 yrs and is used daily in a dirty job shop environment and its still fine.
I did have an ELO panel monitor that had a SAW technology which seemed deadly accurate but the slightest bit of coolant on the panel and the cursor would go crazy, so I would avoid that technology for a touch screen if you use coolant. I just bought a resistive overlay and replaced the ELO overlay and its great now.
Hood
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where can I get a resistive overlay
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where can I get a resistive overlay
Did you not bother *reading* the responses to your own thread?
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where can I get a resistive overlay
Did you not bother *reading* the responses to your own thread?
?????
I think he must have as he's now asking about resistive overlays mentioned by Hood.
I've seen overlays on ebay, have a search through them as some have quite a bit of info on the page.
Steve
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I am not to much of a computer guy so I did not know what Hood ment by resistive overlays.
please bare with :'( :'( :'( :'(
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Hi Josh,
I looked into this a while back but it fell to a lower priority.
Here is some info I saved from the wiki:
Resistive
A resistive touchscreen panel is composed of several layers, the most important of which are two thin, metallic, electrically conductive layers separated by a narrow gap. When an object, such as a finger, presses down on a point on the panel's outer surface the two metallic layers become connected at that point: the panel then behaves as a pair of voltage dividers with connected outputs. This causes a change in the electrical current which is registered as a touch event and sent to the controller for processing.
Surface acoustic wave
Surface acoustic wave (SAW) sumit technology uses ultrasonic waves that pass over the touchscreen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels can be damaged by outside elements. Contaminants on the surface can also interfere with the functionality of the touchscreen.
Capacitive
A capacitive touchscreen panel consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide. As the human body is also a conductor, touching the surface of the screen results in a distortion of the local electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location can be passed to a computer running a software application which will calculate how the user's touch relates to the computer software.
Hope this helps a bit,
Russ
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Here is a basic one.
http://cgi.ebay.com/NEW-15-TOUCH-SCREEN-PANEL-KIT-16-9-USB-INT-4-WIRE-RES_W0QQitemZ370314247244QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item563872fc4c
I had a complet tutorial for LCD and CRT installations but lost it in the big crash of 08'.
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Josh dont worry about it, Ray was out of order with that reply IMO.
I got mine all from eBay and prices are dropping way down since I first started buying them. Fitting has been easy enough but will depend on how your TFT bolts together whether you will have to add spacers or not. Never had to do it on any of mine so far but did have to put some foam round the edges of one to stop the front panel pressing the touch panel. The stuff I used was just the self adhesive neoprene that refrigeration guys use to lag the pipes but anything would have done as long as it kept the front panel of the monitor off of the screen by a small amount. On all the other screens the hole in the monitor front was large enough that it was not a problem as it was outside the active area on the panel.
Hood