All improvement suggestions are welcome! Basic Bahtinovs mask to be fitted inside the telescopes front tube. The pattern was created with http://astrojargon.net/maskgenerator.aspx using custom settings and then sketched to a SolidWorks part. The 5 small limbs on the sides are for adjustmet reasons, so they can be grinded so that the mask fits your 'scope perfectly. I printed this one with quite fast settings on Ultimaker 2, but still got good enough results.