Are there any other sites that let you build a custom map file for garmins? I usually use http://garmin.openstreetmap.nl/ but there's a 3 day wait to request maps and I'm leaving on Friday morning so it's not likely to be ready in time. Just need the East side of East Anglia and the edge 520 has limited space and no sd card slot annoyingly.
I used Velomap (as @aggi suggested) a few weeks ago. You download an area (a large exe that uncompresses to somewhere) and then use MapInstall that comes with Garmin BaseCamp software (tutorial here). Worked well for me so far!
Are there any other sites that let you build a custom map file for garmins? I usually use http://garmin.openstreetmap.nl/ but there's a 3 day wait to request maps and I'm leaving on Friday morning so it's not likely to be ready in time. Just need the East side of East Anglia and the edge 520 has limited space and no sd card slot annoyingly.