I've never heard of an Optacon on wheels to slide out of a case. The slide button on the camera is to adjust the size of the image under your finger on the array. Cindy ----- Original Message ----- From: "Dan Tevelde" <dan.tevelde@xxxxxxxxxxx> To: <optacon-l@xxxxxxxxxxxxx> Sent: Tuesday, June 12, 2007 8:51 PM Subject: Training I haven't used an optacon for 25 years. Last week I had a chance to help a friend who just received one for free. I was able to adjust the controls and get the pins to vibrate and move the camera. All I could feel were straight lines up and down. I picked a document I also had in braille to see if I could read it. The optacon also looked different from the one I had. The unit was inside a case and there were wheels on it to slide it out so you could touch the display. I also don't remember what the button on the camera is for. I'm thinking of buying a used one but would be hesitant unless I can find some training materials and some oaccasional help. I'm not sure what my friend is going to do with her model I think she wants to learn to use it and I'd like to help but I need to learn to use it first. She has never had training. My training was so long ago it doesn't really count. I had to give up my optacon when I went to college and couldn't afford another one. Dan To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject. To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.