How the #speedboatrace helped me slash time from quality prints | Rat Rig V-core 3 Part 5

I’ve wanted to build a top shelf 3D printer kit for a while, and now I present part 5 of the Rat Rig V-core 3 series. In this video we start to really push the limit to see how fast we can print a 3Dbenchy. Also covered are topics such as the final cost and whether input shaping can be used on other machines.

This video aims to be a lesson in the factors that really matter when printing fast. I push specific areas until they become a limitation and then look for fixes. An important thing to note is that my printer sticks to ‘off the shelf’ upgrades. Hopefully it means this video is more relevant for the average viewer. It also means that there is a lot of incredible custom work going on by the really fast entries that is fascinating to see.

This kit was purchased with my own money, apart from the shipping which was provided free of charge by Rat Rig. All opinions expressed are my own.

Order the Rat Rig V-core 3: https://www.ratrig.com/3d-printing-cnc/3d-printer-kits/complete-kits/v-core3configurable.html
My Klipper printer.cgf file: https://pastebin.com/d4B2ExNr
Remember to PID autotune and calibrate Z offset for your own printer. This config is based on the V-core OS package.

0:00 Introduction
Rat Rig V-core 3 build playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsO0oLRZ1wiYvvpbhj4EV-Nf

0:50 Input shaping effective on other printers?

1:20 Total cost of the machine
Spreadsheet of build costs: https://docs.google.com/spreadsheets/d/1wVyGMtsWn2Eqo9TpRhfQQ941j0lPkt9nLSLhpScyv6k/edit?usp=sharing

2:32 What is the #speedboatrace?
3Dbenchy: https://www.thingiverse.com/thing:763622
#speedboatrace challenge from Annex Engineering: https://www.youtube.com/watch?v=7zkKcFtLAks
MirageC’s impressive entry on the HevORT: https://www.youtube.com/watch?v=ZtpQwZyuZP8
Stefan from CNC Kitchen’s great video attempting this challenge: https://www.youtube.com/watch?v=hSWjlf5aNIU

3:54 Stepper motor driver cooling and performance optimization
My custom Rat Rig parts: https://www.thingiverse.com/thing:4871564

5:12 Speed vs acceleration - An analogy
Railton Special land speed record car: https://en.wikipedia.org/wiki/Railton_Special
Checkered flag stock image: https://cliparting.com/free-flag-clipart-15991/
Dragster stock image: https://www.subpng.com/png-o8ahl2/

6:54 Speed vs acceleration - Calculating effective settings
Prusa calculators: https://blog.prusaprinters.org/calculator_3416/

8:15 Speed vs acceleration - Real life examples

9:33 Improving part cooling
SuperSniffles’ Dual 5015 cooling mod: https://contrib.eva-3d.page/cooling/dual_5015_part_fan/
Mikkel Schmidt’s 7035 fan mod: https://contrib.eva-3d.page/cooling/7530_part_fan/
My remix parts for the Rat Rig: https://www.thingiverse.com/thing:4871564

11:05 Switching to other filaments
Volcano PLA at X3D: https://x3d.com.au/products/volcano-pla-1-75mm

12:59 Upgrading heating power and hot end flow
Mosquito Magnum Hot End: https://www.sliceengineering.com/collections/mosquito-the-professional-hotend/products/mosquito-magnum%E2%84%A2-hotend?p=rkZeSrMZw
Triangle Labs silicone sock for Slice Engineering hot ends: https://s.click.aliexpress.com/e/_9i0Mf3
EVA carriage: https://main.eva-3d.page/

15:26 Slicer tips and tricks
Prusa Slicer: https://www.prusa3d.com/prusaslicer/

16:54 Square corner velocity
This is the equivalent of jerk/junction deviation in Marlin and allowable instantaneous speed change in RRF.
Klipper configuration reference: https://www.klipper3d.org/Config_Reference.html

18:45 Response to my #speedboatrace entry video
Leaderboard: https://docs.google.com/spreadsheets/d/1lFiJi-X3Xm3hh3I9Ty9dfACMiBWxHFAOUeiU1km9m6I/edit#gid=106736391

19:41 Conclusion: Why attempt this challenge?

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