Quote from: davidc on October 18, 2010, 11:38:24 PMSeeing as the camera was terminally dead there wasn't much option in this case!
I had a machine from Mike which had had the camera removed... Had to recalibrate it completely.
QuoteIf you use a hand held torch you might as well not bother. The Fid correction aligns everything. so make the dot you are looking at bigger or smaller or obround then the placement will be poor. its the same as using a hasl pad, poor and variable results every time.As it's aligning to the centre, dot size shouldn't matter as long as it is symmetrical. Similarly any asymmetry should be fairly visible looking at the onscreen image. Obviously you'd use a nicely diffused source, not a directional 'beamy' torch.
Applying some lateral thinking as to how you could realign the camera more easily, If before removing the camera, you were to move the head to a known position (e.g. centre of bed using feeder setup) , place a nice sharply drawn cross+box-shape at the right focus height on the bed, line it up with the camera centre and rotation and fix it down securely, it ought to be possible to realign the camera back to the same position to within a pixel or so (depending how easy it is to clamp the camera mount without it moving).
Another pragmatic option may be to just make a new external LED ring to go round the camera body.
QuoteThere as some things which aren't user serviceable on these machines. This is one of them.Everything is user-serviceable, given sufficient time and determination

