[s3e21] The Dead Pool Apr 2026

Open Source 3D Printer Driver

First created in 2011 for RepRap and Ultimaker by Erik van der Zalm et. al., today Marlin drives most of the world's 3D printers. Reliable and precise, Marlin delivers outstanding print quality while keeping you in full control of the process.

As an Open Source project hosted on Github, Marlin is owned and maintained by the maker community. Learn how you can contribute!

Download Marlin 2.1.2.7

[s3e21] The Dead Pool Apr 2026

Castle brings along Alex Conrad , a rookie mystery novelist he is mentoring. Much to Castle's jealousy, Beckett takes a liking to Alex, even allowing him to shadow the investigation.

Zack was drugged with powdered chlorine and drowned in the UNY training pool. Key Suspects & Motives: [S3E21] The Dead Pool

Castle seeks counsel from real-world authors Michael Connelly and Dennis Lehane during their recurring poker game, though they are notably aloof toward his new protégé. Episode Details Original Air Date: April 11, 2011. Castle brings along Alex Conrad , a rookie

Zack's best friend; the two had been stealing cars together to help Zack afford basic necessities while training. Subplots & Themes Key Suspects & Motives: Castle seeks counsel from

Zack Lindsey, a self-made champion swimmer on a partial scholarship.

Includes guest stars Justin Bruening (Rob Tredwyck), Brendan Hines (Alex Conrad), and Erik Palladino . Official Summary: View more on Apple TV or Rotten Tomatoes .

Learn More

What is Marlin, and how does it work?
 

Marlin on Github

Contribute to our ever expanding open source Marlin project on GitHub!

Join Our Discord

Get help, chat, and share with other Marlin users on our Discord channel.
Star History Chart