A deep dive into adjusting the z height on your resin printer when installing the Wham Bam Systems Flexible Build System for Resin, in the original version or XTR. We cover why you might need to adjust your Z limit switch, how to find the Z limit switch and interceptor arm, where to find STLs of spacers and arms, how to install them, and even what to do if you skipped this step and already installed it on your only machine.

0.05 Introduction - why do I need to adjust the Z limit?
1:37 How to find and identify your Z limit switch
2:24 How the Z limit switch works
3:08 Where to find Z spacer files
4:28 Different types of spacers and extension arms
6:04 Bottom-mounted interceptor arm - example: Saturn 2
9:08 Bottom-mounted interceptor arm - example: Mars 3 Pro
11:25 Side-mounted interceptor arm - example: Sonic Mini 4K
12:27 Interceptor arm extender also for built-in interceptor arms- example: Jupiter
13:24 What to do if you already mounted your Wham Bam before printing the spacer
15:11 Conclusion

The support page with written instructions and spacer info can be found on our website:
https://www.whambamsystems.com/pages/...

For complete installation and calibration please follow our video below:
   • Installation of the Flexible Build Sy...  

Learn more about our Flexible Build Systems for Resin:
https://www.whambamsystems.com/pages/...

To learn the difference between our FBSR and XTR versions and learn which is right for you, watch this video:    • FBSR and XTR Comparison  


If you have already installed our system on your machine before printing the spacer, and do not have a second machine you can do one of two things:
1: Unscrew the interceptor arm and put some washers between it and the build head (3mms for FBSR, and 4mms for XTR kits) then re-level.
You can now print the spacer and substitute it.
2: Add some tape to the bottom of the interceptor arm to lengthen it and trip the optical switch earlier, it only needs to extend it a bit (3mms for FBSR, and 4mms for XTR kits) then re-level.
You can now print the spacer and substitute it.


Best resin leveling procedure:
• Remove vat
• Make sure your Wham Bam Flexi Plate and Magnet are mounted to the build plate
• Loosen all screws around the build plate for leveling
• Make sure the build plate moves freely
• Put down 2-4 sheets of paper on the screen
• Hit the home button on your machine control
• When the build plate lowers to the bottommost position, tighten all leveling screws one at a time, being careful not to tilt the bed while tightening the screws, since the direction of the Allen Key can influence tilt.
• Hit home again, as it lifts up remove all sheets of paper except 1 sheet of paper, so it lowers onto just one
• Test pulling and pushing paper under all areas of the build plate, you want to feel even resistance yet the paper can move.

 *If your printer is making noise when homing, then the level was not done properly, please relevel!

**Please do not use the UI functions to adjust the home position, just use leveling screws. 
Do not use 'set z=0'
Do not use 'set z=0’,
If you have already, then do repeat the z=0 once properly homed.



Want to see more detailed product videos like this? Let us know what we should do next in the comments!

Feel free to write to us for product support at: [email protected]



Where to find us online:
https://www.WhamBamSystems.com
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