- West of the Severn UK
@HayfieldJust out of interest what are the printing costs please
Do you mean the cost of getting them printed commercially? Sorry, no idea.
If you mean the cost of making the chairs yourself, the actual resin cost is about 3 chairs for 1p (4mm scale).
But at a bare minimum you will also need:
A well-ventilated workshop area away from your living space. A bathroom + extractor fan or openable window might be suitable.
3D resin printer, around £200. The one I'm using (Elegoo Mars 2P) is currently on Amazon at £230, but there are cheaper models, offers and bundles.
A bottle of "ABS-like" liquid resin, around £35 per kg bottle. (Bundles will likely include the cheaper more brittle resin.)
A bottle of 99% isopropanol (IPA) solvent for washing the chairs. Price varies, the stuff I'm using costs £3.80 per litre.
A sunny day.
The amount of resin needed to make a chair is negligible, more resin will be wasted in the support sprues and washing than ends up in the actual chair. For the last batch of 144 chairs which I made, the software says the total cost of resin including supports was 26p. Say about 48p including washing, IPA and clean-up, which makes the chairs cost 0.33p each or 3 for a penny.
How you factor in the cost of the printer is up to you, but once you have one you will be able to make all sorts of other models and parts, not just chairs. But note that a resin printer is no good for making the filing jigs, for that you need a FDM filament printer (which is no good for making chairs below about Gauge 3).
If you don't have any sunny days in stock you can use a UV lamp instead. Cost is the same as a length of string. Or a dedicated UV curing and washing machine to match the printer costs around £100.
message ref: 2532