For what it's worth, I began having problems after installing the FTDI driver, and eventually saw somewhere here or in reprapwiki forums that OSX no longer needs those. I was buying a new laptop anyway, so didn't install them onto my new Mac Air, which now works fine with Repsnapper.
I don't know where you found that info, but that is not my experience at all. I would be very surprised if Apple took the retrograde step of adding a serial port driver to OSX! If you copied all your documents and applications to your new laptop from your old machine using Apple's Migration Assistant, it may have copied the driver to your new Mac automatically.
FYI I'm running OS X 10.6.7 and had to install the FTDI drivers on both my Macs (well, one 8 month old MacBook Pro and a ... er ... hackintosh!). They are both running 64-bit.
Look at this page if you want to determine if you are running 32- or 64-bit, though it's not important: http://osxdaily.com/2009/09/07/how-to-t ... w-leopard/
There are three steps to getting your Gen6 board working in OS X.
1. Power up your Gen6 board and plug in a USB lead. Select 'About this Mac' from the Apple menu and then 'More info...' to open the system profiler. On the USB tab, the board will show up as 'FTDI product' if the driver is not installed, and something like 'FT232R USB UART' if it is.
2. Install the driver - http://www.ftdichip.com/Drivers/VCP.htm
- I installed the latest version (2.2.16 - same dmg for OS X 32bit/64bit and PPC). It also did NOT require a restart for me.
Once installed, check the driver is functioning by powering up and connecting your Gen6 board. Open Terminal and type:
You should see something like:
where xxxxxxxx is either the device's serial number. You can also check to see if /System/Library/Extensions/FTDIUSBSerialDriver.kext exists, which is where the driver is installed. If you don't see the /dev/tty.usbserial-xxxxxxxx entry, check the troubleshooting section of http://www.ftdichip.com/Support/Documen ... AC_OSX.pdf
3. Install repsnapper
I installed the 28-10-2010 Mac version of repsnapper from the bottom of this page: https://sites.google.com/site/davidbuzz ... x-binaries
This version of repsnapper does have a blank menu palette on the right hand side at start up for me. If I 'hide' the application, then click on the dock icon again, it draws correctly.
You should get three entries in the drop down list of printers to connect to; choose the one that says /dev/tty.usbserial-xxxxxxxx
Mine has worked reliably from this point, though I have only tested motors and endstops, as my reprap is not completed yet.
I have also run the Gen6 board using repsnapper running on a VirtualBox Windows XP VM.