ah , 500 Watt. that should be fine to heath things up. could be a bit to much even. the plastic sides of your slides will melt away... it could be wise to use a dimmer for heath (and light) control.. if they run to hot , they live very short. the slides i mean. but i am certain you have the right projector. now find some more agressive ingredients.
btw, i guess you know that you should never move the projector when it is still hot... the lamp would break easily then ! i always cool them for at least 20 minutes after a gig before i pack them
yeah, i tried it out today, like you said, the plastic is melting away :/... don't know what to do... if i use a dimmer then it would reduce the light beam also and i don't want that... are there any other slides? metallic? do you use only two pieces of glass? can you shove me some pictures, just to know how it looks...
hmm, in your case , you better use two pieces of glass indeed... try to find glass of 1 mm thick, and let it cut in the size of your slides then but still, they will react very fast and live short on 500 watt. or install an extra fan inside your projector or put a piece of glass instead of the heath shield