What to check on the first visit
an artwork preparation for gobo install is mostly survey work. Walk the site at the hour the projection will run, because the ambient light, the position of vehicles, and even the position of a display stand all change what works. Take a photo, measure the throw, and mark the cable route before ordering anything.
- Power within reach of the mounting point
- What the target surface is made of and how it is lit
- Whether the mounting point carries the weight
- Access for future servicing — ladder or powered platform
Mounting height and bracket choice
Choose the bracket before the fixture. an artwork preparation for gobo needs to hold its aim through thermal cycles and, outdoors, through wind loading; a lightweight bracket that drifts a degree will put the image off-target within a month. Use a bracket rated above the fixture weight, and if the install is exposed, check the fixings are stainless.
Power, cable routing and switching
Power is where commercial installs fail inspection. an artwork preparation for gobo drawing 20–200 W is not a problem in itself, but a cable run across a public area, a domestic extension lead, or an unswitched spur all are. Plan a fixed supply, use a gland rated to the environment, and route the cable so it is neither a trip hazard nor the first thing a cleaner unplugs.
Commissioning checks
Test the way it will be used, not the way it was installed. Run the artwork preparation for gobo at the hour it is meant to run, with the house lights at their normal setting, and look at the image from where the audience will stand. A unit that looks fine at 2pm in an empty room can be invisible at 7pm with the lights on.
- Image sharpness at the centre and all four corners
- Contrast against the surface at the working hour
- Full duty cycle run without thermal cut-out
- Housing temperature after an hour at full output
Handover notes worth leaving behind
Leave four things behind: the throw distance and image width as installed, the gobo reference, the focus and zoom settings, and the supplier's contact for re-cutting artwork. Six months later, when somebody asks for a second unit to match, that sheet of paper is worth more than the manual.
- Installed throw distance and image size
- Gobo size and reference code
- Lens settings
- Reorder contact and lead time
