Selective Laser Sintering MkI
Develop a proof of concept SLS machine capable of high-quality plastic prints. It is proposed that the Mk1 amchine is a small scal machine based around a CO2 marking laser head. the build volume will only be around 50mm * 50mm * 50mm cube due to limits of the marking head and to speed and simplify the project.
- 12th Sept. 2013 rlab Project Review ( status update, report back on visit to 3dprintuk)
- 25/26th Sept. 2013 Birmingham TCT Additive Manufacturing Show
- Project Risk Assessment
- Commercial Machine Suppliers
Thanks to MikeTheBee we now have access to a source of used PA2200 Nylon SLS Powder.
Working with PA2200 is messy and dangerous. The powder forms an explosive mixture with air and is prone to ignition by static and lasers. Powder must be contained and not allowed to spread around rlab. Actual sintering and hot work must be done in an inert oxygen free environment.
We have some acrylic powder used as the filler for nail polymers to try
We have some LDPE used to powder coat fishing weights to try
- Domino S100 Marking Laser
- HKR5 Laser Etcher
git clone --recursive https://zi.is/c/sls
- Laser safety
- Temperature Control
Material Handling and Workflow
- Glove Box
Inert gas filled glove box for same containment and handling of plastic powders
- PA2200 transport, storage, and disposal
- Cleaning Parts
- Powder Charge preparation