So, I’ve been having a poke about to try and get a sense of what different materials cost - and how they compare against each other. Prices are in UK Sterling - so multiply 1.5 to get a rough US dollars price. Where I can I’ve tried to find approved laser grade materials, mostly from hobarts.com, a UK supplier and Amazon for some other bits.
All prices are per A3 sheet - approx 42 x 30 cm - a good workable size of the Glowforge bed
All prices are for 3mm thick, roughly speaking double it for 6mm.
£0.13 - EVA mats (11mm)
£0.57 - MDF
£0.76 - Cardboard
£1.46 - Birch
£2.60 - Laser Ply
£2.67 - Acrylic
£7.32 - Bamboo
£20.64 - Rubber (for stamps - 2mm thick)
Next, the amazing SQW scale of relative cost - assuming 3mm MDF is 1
0.2 - EVA foam
1.0 - MDF
2.0 - MDF 6mm
1.1 - Cardboard
2.2 - Birch
3.9 - Laser Ply
4.0 - Acrylic
10.9 - Bamboo
Firstly, I’m surprised Birch is cheaper than ply
Secondly, I’m amazed at how cheap EVA is - that might well be my prototype material of choice
Thirdly, cardboard (if bought, rather than recylced) is more expensive than MDF
Fourthly, materials costs for many things will be insignificant. For example:
Pair of acrylic earrings: 11pence
Small box (1 sheet mdf) 67pence
Large box (3 sheets mdf) £2.24
Large Dolls house (4 sheets mdf) £2.69
Birch Large Box (3 sheets birch) £4.50
Interesting doing some numbers on all this.
Any thoughts, any additions that anybody would like to add?