IMPORTANT

• Please download the User Guide for HULA v1.0 
• I do my best to double-check and test the print profile I create. They are up to date with whatever changes I made to the designs. If you are using profiles made by others, please check if they are updated.
• if you want to purchase ready-to-use HULA feet instead of printing them, please check the Vendor in Your Regional listing.
• Bearing washers have to be installed with the smooth side facing the bearings. 

UPDATE: 10 Aug 2024

I have been gathering valuable feedback from users since the launch of HULA RC2. HULA v1.0 is the result of incorporating some of these suggestions to improve the design.  

1. HULA petg parts are now easier to print and assemble. 
2. The TPU dampener design is improved for more linear dampening and is easier to print with less stringing.
3. Cleaned up 3mf project files and updated the user guide.

I hope this will improve the user's experience of making HULA. 

If you wish to buy Ready-to-Use HULA feet or HULA Hardware Kit, I have partnered with regional vendors to offer them at an affordable price.  I believe in buying locally and supporting local businesses. See below for the list of authorized vendors. 

UPDATE: 20 Jul 2024

I have been saying no to HULA for A1, but you guys have been saying please. I give in. Here is HULA for A1. But… a big CAVEAT : 

1. The dampening results vary. It can work for some and not for others. 
2. Please do not use it with the AMS lite or a 3kg spool sitting on the gantry.
3. The table surface that the printer sits on should not be too smooth. 
4. There is a limit to how much HULA can dampen because the A1 print bed is heavy. 

I have created a separate file where all the beta versions of HULA-related stuff are there "HULA for beta.3mf". Currently, it has HULA for A1, HULA for Pavers and center core with PLA support. 

Installation Guide:

• Follow the installation guide for A1 mini. Use the A1 brackets instead of the A1 mini brackets. 
• Do not need to remove the rubber feet at the 4 corners. They are supposed to sit inside the brackets slot for extra dampening. 
• Add thin double-sided tape on the vertical walls for adhesion to the plastic frame. 
• If you require HULA hardware kit. Please order the hardware kit for the A1 mini from the vendors. The BOM and installation are the same. 

All the best.

List of Printers HULA Supports:

INTRODUCTION

Most 3D printers use rubber feet designed to absorb motors and engine vibrations. It does not do a good job of absorbing the force caused by the directional changes of the toolhead. I draw inspiration from seismic base isolators used to earthquake-proof building structures and designed HULA.

What is HULA?

HULA is an Omnidirectional Self-Aligning Anti-Vibration Foot specifically designed to dampen movement vibration generated by fast 3D printers. It decouples the printer from the table and dampens the horizontal XY forces of corexy & cartesian printers, preventing the printer from swaying/wobbling. This reduces the stress on the printer frame, improves print quality and reduces the shake translated to the table and other printers.

User Guide and Information for HULA v1.0

I have prepared a User Guide for HULA to provide information on printing & assembling. You can find the pdf file at the bottom of the writeup under the Documentation section. Please read the user guide.

BOM for HULA v1.0

• F8-22M Thrust Bearings - 4 sets
• M3x8mm SHCS - 8pcs
• M3x8mm - 8pcs (Prusa, A1mini, A1_beta option)
• M4x10mm + 3030 profile M4 slot nut - 4pcs (Prusa option)
• PETG filament
• TPU 95A filament (or of similar hardness) 

There are 2 versions of F8-22M thrust bearings; 11 & 10 balls. I would advise getting the 11-ball version as it is more stable.

For this project, I used Voxelpetg+ HS (High Speed) and Bambu Lab 95A HF TPU. If you want to get the same filament I worked with, links below.

Voxel (affiliated link): https://voxelpla.com/thrutheframe	If you are ordering Bambu Lab filaments. Please use ModBotArmy afflink https://t.co/E8evlph88U and support his channel. His contents are very informative and help the 3dp community greatly.

Vendors in Your Region

If you wish to buy Ready-to-Use HULA feet or HULA Hardware Kit, I have partnered with regional vendors to offer them at an affordable price. I believe in buying locally and supporting local businesses.

HULA for Bambu X1& P1 series

HULA for Bambu Lab A1 mini

HULA for Creality K1 Series

HULA for Prusa Mk3/Mk4 and Prusa Bear

HULA for Voron Printers

VIDEOS

Comparison Test between Bambu Lab Anti-Vibration feet (left) vs HULA anti-Vibration feet (right) - In this video, you will see that Bambu Lab anti-v feet cause the printer to wobble/oscillate. Where the HULA decouples the printer from the table and dampens the movement on the horizontal plane greatly reducing the wobbling.

Comparison test of HULA for A1 mini

Hula is meant to be a fun and useful project for the community, and the way it moves always reminds me of Crayon Shin Chan 蜡笔小新 (クレヨンしんちゃん) who was my favourite manga during my university days.

HULA Top Cover (Themed)

Braille	Japanese	LDO

Makes that goes with HULA

1. HULA thin build plate holder - https://makerworld.com/en/models/491406#profileId-404926

CONCLUSION

To date, my designs are free to download for personal use. There is No Patreon, No Membership, No Clubs, No Subs and No OnlyFan (hahaha). If you like my designs and wish to contribute to my coffee addiction and help fund the filaments/materials needed for prototyping, doing any one of the below will be greatly appreciated:

1. Post your make in the comments section and other 3D printing social media sites,
2. A MakerWorld's boost,
3. Purchase HULA kits from listed vendors,
4. Buy me a coffee at Ko-fi or paypal.me

CAVEAT

As with all my designs, Prototyping and testing were conducted to ensure printability and meet my expectations. However, I understand it may and may not work for you. I would request that you read all instructions before printing and installing them at your own discretion.