Uploaded August 2023 | Updated September 2026, 2 weeks ago
Check out my 2nd channel, TT Racing: youtube.com/@ttracingYT
It’s time for some home based injection molding. I’ve had this machine since 2014, but it has been sitting idle for a while now, due to an error on my part. In this video, I start the process by cleaning and repairing to get it almost back to working order.
Please note that this machine is sold to suit 110V mains voltage. In Australia we use 220V, and I’m pretty sure I removed one heater and converted the other. If you also use 220V, you would need to do the same or use a step down converter.
Hopefully the new o-rings work well, but in any case, I’m considering casting some high temp silicone washers so I can push the temperature as necessary.
In part 2, the plan is to machine and mold and create something.
0:00 Introduction
Precious plastics shredder video: youtu.be/NL-k8kJ8yig
3D printing vs injection molding: youtu.be/xW1Ob5uzfF8
1:01 My home injection molder: stores.jacobsbaits.com/injection-press-standard-series-1
Demo video: youtube.com/watch?v=F6HidmU6pQI
Plastisol wiki: en.wikipedia.org/wiki/Plastisol
2:34 Modifications
3:04 Cleaning
3:28 Height adjustment mechanism repair
4:51 Tear down and Valve rod unseizing
9:53 Rewiring the heating element
11:20 Basic testing
PID controller manual: maxwell-fa.com/uploadfile/downloads/User%20manual-Rex%20C100,C400,C700,C900.pdf
12:01 Conclusion
Recycling logo image by Ilmari Karonen: en.wikipedia.org/wiki/File:Recycle001.svg
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: patreon.com/teachingtech
Check out my 2nd channel, TT Racing: youtube.com/@ttracingYT
It’s time for some home based injection molding. I’ve had this machine since 2014, but it has been sitting idle for a while now, due to an error on my part. In this video, I start the process by cleaning and repairing to get it almost back to working order.
Please note that this machine is sold to suit 110V mains voltage. In Australia we use 220V, and I’m pretty sure I removed one heater and converted the other. If you also use 220V, you would need to do the same or use a step down converter.
Hopefully the new o-rings work well, but in any case, I’m considering casting some high temp silicone washers so I can push the temperature as necessary.
In part 2, the plan is to machine and mold and create something.
0:00 Introduction
Precious plastics shredder video: youtu.be/NL-k8kJ8yig
3D printing vs injection molding: youtu.be/xW1Ob5uzfF8
1:01 My home injection molder: stores.jacobsbaits.com/injection-press-standard-series-1
Demo video: youtube.com/watch?v=F6HidmU6pQI
Plastisol wiki: en.wikipedia.org/wiki/Plastisol
2:34 Modifications
3:04 Cleaning
3:28 Height adjustment mechanism repair
4:51 Tear down and Valve rod unseizing
9:53 Rewiring the heating element
11:20 Basic testing
PID controller manual: maxwell-fa.com/uploadfile/downloads/User%20manual-Rex%20C100,C400,C700,C900.pdf
12:01 Conclusion
Recycling logo image by Ilmari Karonen: en.wikipedia.org/wiki/File:Recycle001.svg
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: patreon.com/teachingtech

![Testing the ObXidian nozzle and new E3D Revo developments
I previously tested the E3D Revo hot end system on a high speed SecKit SK-Tank coreXY 3D printer, and was pleasantly surprised by the performance. The system offers convenient, tool-less swapping of nozzles, so it works best in my opinion when multiple printers have the system and can share components. In this video, I fit a Bigtreetech H2 V2S Revo to my Ender 3, a Revo Micro to a Prusa Mini, and test the new abrasion resistant ObXidian nozzles from E3D.
These Revo products were provided free of charge by E3D for the purposes of review, in accordance with my review policy. All opinions expressed are my own. https://teachingtechyt.github.io/reviewpolicy.html
Purchase the E3D Revo: https://e3d-online.com/collections/revo?aff=20
Purchase the BTT H2 V2S Revo: https://s.click.aliexpress.com/e/_DB8TKhh
Pre-order the Revo ObXidian: https://e3d-online.com/products/revo-obxidian-nozzles?aff=20
0:00 Introduction
Original Revo test on SK-Tank coreXY: https://youtu.be/K3NnNRKdrEQ
1:14 BTT H2 V2S Revo specs and differences
Original BTT H2 with XChange video: https://youtu.be/zyKH05bBs4Q
3:04 H2 V2S Revo installation and printing
Fan duct and adaptor I was using: https://www.thingiverse.com/thing:4749419
Fan adaptor I am now using: https://www.thingiverse.com/thing:4682915
OmniaDrop extruder video: https://youtu.be/Ho571m8pnWE
Power Test and Kraken video: https://youtu.be/EjQqlNPSv5k
5:04 Revo Micro to Prusa Mini 3D printed adaptor
Prusa Mini Revo Micro adaptor: https://www.printables.com/model/151007-prusa-mini-upgrade-edition-2-revo-micro
5:54 Revo Micro to Mini installation and printing
Revo Micro Mini instructions: https://e3d-online.zendesk.com/hc/en-us/articles/4565871722397
Rook model: https://www.thingiverse.com/thing:99028
9:32 Revo ObXidian nozzles
E3D ObXidian article: https://e3d-online.com/blogs/news/revo-obxidian
10:30 Revo brass vs ObXidian testing
Rotating Rings toy: https://www.printables.com/model/7876-rotating-rings-toy
Teaching Tech speed and flow rate test: https://teachingtechyt.github.io/calibration.html#speed
13:00 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech Testing the ObXidian nozzle and new E3D Revo developments](https://i.ytimg.com/vi/4X1F-dLVT3g/mqdefault.jpg)
![Comparing 3D printing model websites objectively to find a winner
Check out my 2nd channel, TT Racing: https://www.youtube.com/@ttracingYT
If you want a 3D model to 3D print, there are plenty of options available. In fact, there are almost too many options. In this video, we compare six different sites across ten different areas, with the aim of allowing you to pick the solution that caters to your needs.
I tried to be as meticulous as possible in preparing this video. As far as I am aware, all information is correct at the time of publishing. If mistakes are pointed out, I will note them in a pinned comment.
0:00 Introduction
0:44 Overview of options
Thingiverse: https://www.thingiverse.com/
Ultimaker Makerbot merger article: https://www.prnewswire.com/news-releases/ultimaker-and-makerbot-announce-closing-of-merger-301622712.html
Myminifactory: https://www.myminifactory.com/
Cults3D: https://cults3d.com/
CrealityCloud: https://www.crealitycloud.com/
Thangs: https://thangs.com/
Printables: https://www.printables.com/
Makerworld: https://makerworld.com/
3:16 Free vs paid models
5:28 Advertising
6:39 Search functionality
7:56 Contests
8:38 Companion apps
10:07 Cloud/automatic printing
11:32 Rewards
12:30 Communities
13:30 Guides
14:12 How many is too many?
15:01 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech Comparing 3D printing model websites objectively to find a winner](https://i.ytimg.com/vi/4ZeHY44B8PU/mqdefault.jpg)

![Klipper CAN bus guide for Bigtreetech U2C and EBB boards
A modern 3D printer has many, many wires going from the mainboard to the print head. Each set is responsible for a component and its operation. But what if we reduced that loom to just four wires? Two power wires, and two communication wires. Today we are testing such a CAN BUS system with the Bigtreetech U2C and EBB modules.
This is currently only compatible with Klipper and requires a bit of work to setup. Thanks to my patron Derek for assisting and collaborating with this mod, and to metoyou for their informative guides.
These items were purchased with my own money. All opinions expressed are my own. UPDATE: 3D BRO saw my video and refunded my money as a gesture of appreciation for my channel. Thanks for the generosity!
Purchase the Bigtreetech U2C and EBB:
U2C board on Amazon: https://amzn.to/3Em2xh8
EBB boards on Amazon: https://amzn.to/3gjw7fl
Aliexpress: https://s.click.aliexpress.com/e/_DBBQUJl
3D Bro (Aus): https://3dbro.com.au/product/bigtreetech-ebb/
0:00 Introduction
0:41 What is a CAN bus?
CAN bus wiki: https://en.wikipedia.org/wiki/CAN_bus
2:42 Bigtreetech U2C and EBB modules
3:46 Resources
Klipper CANBUS reference: https://www.klipper3d.org/CANBUS.html
Bigtreetech U2C GitHub: https://github.com/bigtreetech/U2C
Bigtreetech EBB GitHub: https://github.com/bigtreetech/EBB
Metoyou’s Klipper documentation: https://github.com/meteyou/KlipperMisc
4:52 U2C and EBB mounting
Derek’s EBB36 Orbiter extruder mounting: https://www.printables.com/model/316984-ebb36-mount-with-cable-strain-relief-for-the-orbit
My CAD for all things CR-10 Max: https://cad.onshape.com/documents/3f7dc479d6fd4551cee02623/w/0e126458c23a8d79fe4c7865/e/7dd34305e5e0bc31edd3f4ed?renderMode=0&uiState=6375afd56cb7c63ae4a99fb5
5:51 U2C wiring
6:04 U2C CandleLight USB to CAN firmware
Original CandleLight_fw repo: https://github.com/candle-usb/candleLight_fw
Bigtreetech CandleLight_fw repo: https://github.com/bigtreetech/candleLight_fw
Meteyou’s U2C instructions: https://github.com/meteyou/KlipperMisc/tree/master/BigTreeTech-U2C-v1.0
My video on SSH: https://youtu.be/KQVQOq0Tpgo
8:52 EBB temporary wiring
9:21 EBB bootloader
10:24 EBB Klipper firmware
12:30 Final umbilical CAN cable
13:23 Print head wiring to EBB board
Crimping guide video: https://youtu.be/GZOh1NzqzzU
13:56 Klipper config changes for EBB
14:55 Final touches and calibration
15:31 Communication timeout troubleshooting
Multi MCU homing reference: https://www.klipper3d.org/Multi_MCU_Homing.html
Fix thanks to Boxxy: https://klipper.discourse.group/t/canbus-communication-timeout-while-homing-z/3741/3
17:01 Updating the EBB board
17:24 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech Klipper CAN bus guide for Bigtreetech U2C and EBB boards](https://i.ytimg.com/vi/5pLjeQz9pEI/mqdefault.jpg)
![3D printed velcro is something you have to try
Check out my 2nd channel, TT Racing: https://www.youtube.com/@ttracingYT
Velcro is cool but fully 3D printable velcro is better (or maybe I’m just biased). In this video, I explore the models available on Printables and then convert my favourite to be fully parametric in OpenScad. What will you make with 3D printable velcro?
Printables page with OpenScad file and some pre-exported STLs: https://www.printables.com/model/568587-parametric-3d-printable-velcro
0:00 Introduction
0:42 What is velcro?
1:57 How does 3D printed velcro work?
Velcro competition on Printables: https://www.printables.com/contest/397-hook-loop-prints
Plastic Velcro! Super Strong “Hook and Loop” BowieInc Connector! : https://www.printables.com/model/549525-plastic-velcro-super-strong-hook-and-loop-bowieinc
Printable Velcro by MM Printing: https://www.printables.com/model/543802-printable-velcro
Printable VELCRO by eried: https://www.printables.com/model/33302-printable-velcro
4:38 What material is best?
6:20 Strength testing
8:44 Parametric version in OpenScad
OpenScad free download: https://openscad.org/downloads.html
12:22 Example usage
Import scad files with Freecad guide: https://wiki.freecad.org/Import_OpenSCAD_code
13:41 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech 3D printed velcro is something you have to try](https://i.ytimg.com/vi/5rzHbZ7zt-w/mqdefault.jpg)
![Help me choose which projects to complete - 5 years of Teaching Tech
At the end of this year, the Teaching Tech channel turns five! As a gesture of my appreciation of the community, here are six long term projects I’ve had in the works for some time. Please use the comment section to let me know which you’d like to see, and any addition you think would make them better.
Thank you to all of the viewers and Patrons who have supported my channel so far. It is an honour to serve the community.
0:00 Introduction
0:34 Five years of Teaching Tech
2:07 Backyard automation
Miniature goat video: https://youtu.be/qEr2p4333o0
3:17 E kart upgrade
Electric kart video: https://youtu.be/8CnUPWTv-AU
18650 battery beginner’s guide: https://youtu.be/tKg-jIrr_JE
5:07 Protocycler+ filament extruder
Precious Plastics shredder: https://youtu.be/NL-k8kJ8yig
PolyLab pellet extruder test: https://youtu.be/3rC0a-YyEM0
Protocycler+: https://redetec.com/products/protocycler?variant=39805378658352
6:55 Open source claw machine
Plush Time Wins claw machine video: https://www.youtube.com/watch?v=M07BBEQEbO0
9:06 3D printed RC plane
Previous 3D printed RC plane video: https://youtu.be/WEK67_uUQv0
Eclipson Airplanes Model C: https://www.eclipson-airplanes.com/modelc
10:28 Home injection molding
Jacob’s baits injection press: https://stores.jacobsbaits.com/injection-press-standard-series-1/
Carvera CNC: https://youtu.be/ID0-gpGaZGM
12:13 Conclusion
Thumbnail image credits
Claw: https://publicdomainvectors.org/en/free-clipart/Robotic-claw/62815.html
Elephant plush: https://www.publicdomainpictures.net/en/view-image.php?image=95267&picture=plush-toy-elephant
Mobile phone with hand: https://www.pexels.com/photo/person-holding-mobile-phone-with-empty-screen-9164560/
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech Help me choose which projects to complete - 5 years of Teaching Tech](https://i.ytimg.com/vi/6AcYFxG74EA/mqdefault.jpg)
![Making the ultimate camping powerbank + Bambu Lab X1 update
Last year I picked up some nice Headway LiFePo4 cells, so what to build with them? With warmer months on the way, I decide to design and 3D print my own mega powerbank. It can charge two phone/tablets at once multiple times, run any 12V auto or camping equipment, and recharge from solar panels. It also has an onboard BMS to keep it safe and prevent any mishaps.
In this video I also include an update on the Bambu Lab X1 3D printer. It has been receiving small updates to improve reliability, new firmware and software, plus online documentation. If you backed it on Kickstarter, you might find this portion useful.
0:00 Introduction
0:42 Existing 18650 Li-ion powerbanks
18650 custom battery guide: https://youtu.be/tKg-jIrr_JE
1:33 Headway 38120 Lifepo4e cell
EVworks Headway product page: https://www.evworks.com.au/headway-38120-10ah-cell-lifepo4-cell-3.2v-10ah
Life Iron Phosphate wiki page: https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery
Example Headway bus bar: https://liionwholesale.com/pages/search-results-page?q=headway
3:10 Designing the electronics
Daly BMS Aliexpress link: https://www.aliexpress.com/item/1005001803913333.html
6:57 Designing the casing
9:09 3D printing the parts on the Bambu Lab X1 Carbon
Previous X1 test video: https://youtu.be/ndVfha9hV08
Bambu Studio GitHub: https://github.com/bambulab/BambuStudio
Bambu Lab wiki: https://wiki.bambulab.com/en/home
X3D Diamond series PLA: https://x3d.com.au/products/x3d-pro-diamond-series-1-75-mm
Previous Carvera test video: https://youtu.be/ID0-gpGaZGM
11:59 Assembly
13:26 Finished product
Source CAD in case you want to remix or print yourself: https://cad.onshape.com/documents/c877fe0ef23761aa9b40a1ad/w/456eefa1b4a7541003e11774/e/72d95f42b62d44b7bd0a85b1?renderMode=0&uiState=62f5e29dc12948117d19264c
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech Making the ultimate camping powerbank + Bambu Lab X1 update](https://i.ytimg.com/vi/6b0nyNW4YMo/mqdefault.jpg)

![I’m changing from Thingiverse to Printables and maybe you should too
I’ve been on Thingiverse for about ten years, and it has served me well. More recently however, there have been a series of problems and other, more developed options have become available. In this video, I explain why I’ve switched my online designs to Printables by Prusa and take you through its advantages and how to use it. This includes easily migrating all of your Things from Thingiverse.
https://www.printables.com/
As is stated in the video, this is not a suggested or sponsored video from Prusa. I have no direct involvement with them except as a paying customer. I have chosen Printables because I feel it’s the best current 3D file sharing solution.
Thanks again to my patrons for their assistance in creating multiple aspects of this video.
0:00 Introduction
0:42 What is Thingiverse?
Thingiverse: https://www.thingiverse.com/
1:54 Recent Thingiverse problems
Uncle Jessy video on slowness: https://www.youtube.com/watch?v=CQ6m4S9y-So
TH3D video on explicit ads: https://www.youtube.com/watch?v=xpW8n3Z9hjg
All3DP security breach article: https://all3dp.com/4/thingiverse-data-breach-2021/
Maker’s Muse video on security breach: https://www.youtube.com/watch?v=Q9quSFxZgNY
3:48 Why I have chosen Printables.com
Switching to SuperSlicer video: https://youtu.be/LIUB7CbDQD4
Printables: https://www.printables.com/
5:30 Creating an account
6:01 Creating a new print
7:52 Migrating things from Thingiverse
9:10 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech I’m changing from Thingiverse to Printables and maybe you should too](https://i.ytimg.com/vi/6oUeLKaFoUA/mqdefault.jpg)
![xtouch Bambu Lab P1P/P1S touch screen upgrade guide
Check out my 2nd channel, TT Racing: https://www.youtube.com/@ttracingYT
The main thing that annoys me about using the Bambu Lab P1P/P1S is the control panel. The screen is small and long strings of text have to be scrolled, plus the interface for things like setting the temperature is very clumsy. Thanks to developer experiments, the xtouch touch screen interface is now available, for a total cost under $10.
I first tried this upgrade back in August, but there were some issues that diminished the experience. Experiments has since developed xtouch to a really polished product. I am very thankful for their efforts!
xtouch by experiments: https://github.com/xperiments-in/xtouch
Purchase the P1P: https://shareasale.com/r.cfm?b=2354726&u=2259340&m=138211&urllink=&afftrack=
Purchase the P1S: https://shareasale.com/r.cfm?b=2377904&u=2259340&m=138211&urllink=&afftrack=
0:00 Introduction
0:56 X1 vs P1 key differences
2:34 xtouch by xperiments
xtouch on GitHub: https://github.com/xperiments-in/xtouch
Bambu Lab forum post: https://forum.bambulab.com/t/added-p1p-a-touch-screen/19017
3:29 ESP32 touch screen purchase and unboxing
4:31 Drivers
4:46 Preparing an SD card
5:30 Flashing firmware
6:27 Connection and pairing
7:17 Supplying power
7:48 Features and settings
9:34 Enclosure
Source CAD: https://cad.onshape.com/documents/45fd6fd6055835bc3ea98a37/w/1ef8d7c52ad3354ac787833e/e/6b500ddab5b98a62f3557288?renderMode=0&uiState=6525c4f2e48e0b417fef2e84
Enclosure on Printables: https://www.printables.com/model/611634-xtouch-enclosure-for-bambu-lab-p1ps
11:29 Conclusion
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: http://www.patreon.com/teachingtech xtouch Bambu Lab P1P/P1S touch screen upgrade guide](https://i.ytimg.com/vi/7Av64TRznlI/mqdefault.jpg)