MegaLaser
The laser cutter we have is nice functional. This is good
It is also small. Hence begins the enlargening.
Plans here will be inspired by Further Fabrication.
Construction plans
Specifications
Build Volume: 1200*2400mm Laser: 100W CO2 (Or better)
Construction: Aluminium Extrusion Frame Safety: Estop + Lid Catches + Laser Proof Plex (Apparently any Perspex Will Do)
Nice To have: Crapveyor to remove gunk
Sourcing + Pricing estimates
Aluminium Extrusion
Building a frame out of Aluminium Extrusion would be easy and quick to assemble, and strong enough for a laser.
Currently overestimating Extrusion dimensions to 1500*300*2500mm to give some slack
| Section | Profile | Cuts (mm) | Notes |
|---|---|---|---|
| Base | 2020 | 2*1500+2*2500 | -2*20mm On some |
| Uprights | 2040 | 4*300 | |
| Top | 2040 | 2*1500+2*2500 | -2*20mm On some |
| Laser Gantry | 2040 | 1500 | Going short length to hopefully reduce sag |
| Bed | 2040 | 2*1300+2*2450 | Hopefully enough slack |
| Bed Slats | 2020 | N*1300 | N>=2 |
| Outer Enclosure | 2020 | 4*500+2*3000+2*2000 | TODO: Close Bounds |
| Lid | 2020 | 2*2000+2*3000+N*2000 | N>=2, -2*20mm On some |
| Misc Standoffs | 2020 | 500 | Hopefully enough slack |
| Misc Standoffs | 2040 | 500 | Hopefully enough slack |
"-2*20mm On some" means 2 20mm cuts off either of the sets to make a regular correctly sized rectangle
Total Length:
- 2020: 37.1m
- 2040: 22.8m
Sources of Aluminium Extrusion:
* Found under Automation Components -> Framing * 2020: €5.4 per m per 4m length * 2040: €9.7 per m per 4m length
* Priced for 6mm slot * 2020: £4.40 per m; £0.75 per cut MaxLen 6m * 2040: £6.60 per m; £0.75 per cut MaxLen 6m
At Cheapest Price: 38*4.40 + 23*6.60 = £319 ex VAT
Laser
TODO: Laser+Laser Gear Sourcing
Possible: DIY as people have built laser tubes before
Motors
China Express puts Nema17s at <£10 per motor; and 23s at <£20 per motor
Electronics
TODO