Uploaded May 2022 | Updated September 2026, 2 weeks ago
You slice a model to 3D print, observe the time estimate, only to return when it should be done to discover it has run over time. If you are trying to meet deadlines, an accurate print time prediction is essential. For everyone else, it’s a quality of life feature. In this video we explore the reasons the estimate is inaccurate, and a range of ways to fix it.
0:00 Introduction
0:37 Slicer calculation method and inaccuracy
3:43 Discrepancy 1 - Start gcode sequences
4:56 Discrepancy 2 - Speed vs acceleration
6:05 Discrepancy 3 - Jerk/junction deviation/SQV/MISC
Prusa calculator: blog.prusa3d.com/calculator_3416
7:07 Discrepancy 4 - miscellaneous
8:21 Gathering data for a fix
8:51 Simplify3D
Simplify3D forum post on preset values: forum.simplify3d.com/viewtopic.php?t=12822
9:07 PrusaSlicer / SuperSlicer
10:02 Cura
10:52 RRF print simulation
11:17 Octoprint plugin
Print time genius: plugins.octoprint.org/plugins/PrintTimeGenius
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
You slice a model to 3D print, observe the time estimate, only to return when it should be done to discover it has run over time. If you are trying to meet deadlines, an accurate print time prediction is essential. For everyone else, it’s a quality of life feature. In this video we explore the reasons the estimate is inaccurate, and a range of ways to fix it.
0:00 Introduction
0:37 Slicer calculation method and inaccuracy
3:43 Discrepancy 1 - Start gcode sequences
4:56 Discrepancy 2 - Speed vs acceleration
6:05 Discrepancy 3 - Jerk/junction deviation/SQV/MISC
Prusa calculator: blog.prusa3d.com/calculator_3416
7:07 Discrepancy 4 - miscellaneous
8:21 Gathering data for a fix
8:51 Simplify3D
Simplify3D forum post on preset values: forum.simplify3d.com/viewtopic.php?t=12822
9:07 PrusaSlicer / SuperSlicer
10:02 Cura
10:52 RRF print simulation
11:17 Octoprint plugin
Print time genius: plugins.octoprint.org/plugins/PrintTimeGenius
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
![Cheap and easy Klipper touch interface with CYD Klipper
Check out my 2nd channel, TT Racing: https://www.youtube.com/@ttracingYT
Klipper has grown much more popular, and with that we receive more and more options from developers. In this video, we test CYD Klipper, a simpler alternative to KlipperScreen that can be setup very easily and for little cost. Hopefully it is a viable and affordable option for the Klipper community.
0:00 Introduction
0:42 Existing Klipper interface options
KlipperScreen guide: https://youtu.be/gYP2j-dUrBY
2:29 CYD Klipper
GitHub: https://github.com/suchmememanyskill/CYD-Klipper
Xtouch guide: https://youtu.be/7Av64TRznlI
3:01 Required hardware
CYD purchase links: https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display#where-to-buy
4:08 Installation
CH340 driver installation guide: https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/all
6:06 Designing an enclosure
SuperRacer belt conversion video: https://youtu.be/hgTfSCgL0L0
My enclosure on Printables: https://www.printables.com/model/725071-cyd-cheap-yellow-display-generic-enclosure
9:13 Features and operation
10:09 Macros
11:26 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 Cheap and easy Klipper touch interface with CYD Klipper](https://i.ytimg.com/vi/R3o0MGYW1ZU/mqdefault.jpg)
![Can you make money repairing barely broken 3D printers?
There must be plenty of ‘broken’ 3d printers sitting around collecting dust. In this video, we examine if an experienced user, with plenty of knowledge and spare parts, could buy these printers, fix them and profit from their sale. My experience shows that while there may be some easy conversions, sometimes you’ll take a loss on a difficult machine, and that puts a question mark over the whole idea.
0:00 Introduction
0:46 Premise
1:42 An example 3D printer: Ortur 4
2:52 Plan of action
3:13 Updating firmware
Marlin Ortur4 config: https://github.com/MarlinFirmware/Configurations/tree/bugfix-2.0.x/config/examples/Ortur%204
My branch of Marlin 2 for this printer (SKR mini E3 V2 mainboard): https://github.com/teachingtechYT/Marlin/tree/Ortur4
4:14 Investigating the hot end thermistor
5:12 Changing the broken mainboard
Link to adaptor CAD: https://cad.onshape.com/documents/d7f9c6573816425117cb4c50/w/afb74b38aec70e9cb4c59316/e/06d3f67ac04e5ce911519a29?renderMode=0&uiState=62678202f626c06923b56bec
6:29 LCD saga
Reddit Anet LCD thread: https://www.reddit.com/r/BIGTREETECH/comments/ftuoc3/anet_a6_full_graphics_lcd_on_skr_mini_e3_v12/
Scammed video: https://youtu.be/b9bHYfRiyV0
Portzal TFT35 (non E3) housing: https://www.thingiverse.com/thing:4129333
BTT TFT35 E3 model on Grabcad: https://grabcad.com/library/bigtreetech-tft35-e3-v3-0-1
7:54 Final checks and tuning
9:02 Printing and tweaking
My free calibration website: https://teachingtechyt.github.io/calibration.html
10:31 Preparing for handover
10:55 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 Can you make money repairing barely broken 3D printers?](https://i.ytimg.com/vi/RMWsoxO4e68/mqdefault.jpg)
![Are cheap 3D printers more trouble than they’re worth?
Check out my 2nd channel, TT Racing: https://www.youtube.com/@TTRacingYT
When looking to get into 3D printing, many people might be tempted by the very cheap options on Amazon and Aliexpress. While these printers will most likely work, the truth is they are built using outdated features and will require some experience to keep going. In this video, we look at such a printer that its beginner owner reported as broken. We diagnose the problem, and fix a range of upgrades aimed at preventing further problems before they eventuate.
One thing that is clear in this video, is that the community makes these budget printers viable. Mods, upgrades and firmware support is frequently better than what the manufacturer offers.
0:00 Introduction
0:53 The Elegoo Neptune 2
Review policy: https://teachingtechyt.github.io/reviewpolicy.html
2:46 Start up, test print and diagnosis
Orca Slicer: https://youtu.be/cquTCpz1V74
4:45 Bed change
Wham Bam kit (affiliate): https://bit.ly/4gy8hWB
6:03 Hot end change
Microwwiss all metal hot end (affiliate): https://amzn.to/4goAHCq
7:34 Extruder change
Broken Ender 3 extruder arm article: https://community.element14.com/members-area/personalblogs/b/nico-tewinkel-s-blog/posts/ender-3-pro-broken-extruder-arm
EZRstruder: https://www.seemecnc.com/products/ezrstruder
E steps calibration: https://teachingtechyt.github.io/calibration.html#esteps
9:17 BLtouch and firmware update
BL touch with 1m extension cable (affiliate): https://amzn.to/4feIL7M
Elegoo downloads page: https://www.elegoo.com/blogs/3d-printing/elegoo-neptune-2-2d-3d-printer-support-files
NARUTOfzr GitHub page: https://github.com/NARUTOfzr/ZNP-Robin-Nano-V1.2-V1.3
BLtouch mount: https://www.printables.com/model/288026-3d-touch-bl-touch-mount-for-elegoo-neptune-2
Marlin configuration guide: https://youtu.be/eq_ygvHF29I
Marlin download: https://github.com/MarlinFirmware/Marlin/releases/
Neptune 2 Marlin config: https://github.com/MarlinFirmware/Configurations/tree/import-2.1.x/config/examples/Elegoo/Neptune%202
BLtouch guide: https://teachingtechyt.github.io/upgrades.html#bltouch
12:23 Conclusion
Bambu Lab A1 mini combo (affiliate): https://shareasale.com/r.cfm?b=2420414&u=2259340&m=138211&urllink=&afftrack=
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 Are cheap 3D printers more trouble than they’re worth?](https://i.ytimg.com/vi/RUnH_VKx1bs/mqdefault.jpg)

![Comparing consumer FDM 3D printing to SLS Nylon with Team Surge AU
Check out my 2nd channel, TT Racing: https://www.youtube.com/@TTRacingYT
F1 in Schools is an amazing competition I wish was available back when I was at school. In this video, I’m joined by Team Surge, one of Australia’s representatives in the upcoming World Finals. The aim is to compare regular FDM 3D printing filaments with professionally produced SLS Nylon 12 parts, across a range of areas like surface finish, mass, accuracy and impact strength.
The results are not really that surprising to me, and remind me that an affordable and safe SLS machine for consumer use would be amazing.
Thank you to Team Surge for being a pleasure to collaborate with. Their design and engineering process is impressive, as is their organisation and communication. They provided a lot of data and media to me to aid in making this video. Go Australia!
Please visit their website and vote on what material they should use.
Team Surge website: https://teamsurgeau.com/
Team Surge Go Fund Me: https://gofund.me/e76e6e85
0:00 Introduction
Previous F1 in Schools video: https://youtu.be/MvVgZWEgbww
0:49 Team Surge
F1 in Schools 2024 Australia National Finals stream: https://www.youtube.com/watch?v=zMQ75xgP_pU
1:44 Materials selected for testing
ApolloX car parts video: https://youtu.be/lCqwA1h3JV4
Polysmooth test video: https://youtu.be/Oz0PoS5LPxg
Formlabs Fuse 1+: https://formlabs.com/asia/3d-printers/fuse-1/
Micronics3D desktop SLS: https://www.micronics3d.com/micron
3D explorer post print processing: https://3dexplorer.com.au/post-print-process/
3:40 Accuracy, mass, manufacturability and smoothness
5:37 Destructive testing
Open source hammer tester: https://youtu.be/tmTEQkB71cw
Printables: https://www.printables.com/model/576121-destructive-testing-mechanical-hammering-machine
9:15 Evaluating the best material
SLS4All website: https://sls4all.com/
11:24 Support the team!
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 consumer FDM 3D printing to SLS Nylon with Team Surge AU](https://i.ytimg.com/vi/RmbiJ2H5od8/mqdefault.jpg)

![3D model to technical drawing - 3D design for 3D printing
To get the best out of 3D printing, it helps if you can design your own parts. In this tutorial series, we will learn to use a free 3D CAD program to do just that.
In this episode, I demonstrate how to create technical drawings based on a 3D model. We cover creating multiple views across multiple sheets, dimensioning, scale, and title blocks. We also cover more advanced techniques such as section and auxiliary views, plus assembly drawings with a labelled bill of materials.
Thanks to my patron Richard for requesting this tutorial.
0:00 Introduction
3D design for 3D printing Onshape playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsONnjEEPeBxxStEsobDKAtV
Direct link to create a free account: https://www.onshape.com/en/products/free
Source CAD for tutorials: https://cad.onshape.com/documents/b5475ccd1f83733e348c59b0/w/f0f78c61f2ac76b0b03c0692/e/2693d666ff5f1d3749f8b85d?renderMode=0&uiState=62fb0fbda209767dfe1e6bf0
0:38 Example 3D model
1:47 Creating a drawing using a sheet template
2:25 Placing views
3:24 Customising the sheet
5:20 Dimensions
6:13 Adding a second sheet
6:30 Section view
7:30 Auxiliary view
8:17 Named/custom view
9:22 Updating a model and drawing
9:59 Assembly drawing with parts list
11:35 Exporting
11:53 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 model to technical drawing - 3D design for 3D printing](https://i.ytimg.com/vi/SLw1NczPtYA/mqdefault.jpg)

![3D printer trends are limiting mainstream acceptance: The 3D printing paradox
3D printing has so much potential, but instead of moving towards a future where each household has access to on demand manufacturing, instead it is becoming more niche. In this video we discuss the 3D printing paradox, where the habits of manufacturers limit their sales and keep 3D printing a tinker’s pursuit.
I’ve expressed my frustration before about the saturation of clone and ‘me too’ 3D printers, and my community survey told me most of you feel the same way. Until manufacturers start investing in R&D to make 3D printers foolproof and easy to understand, their sales will be limited. Surely there is a lot of money to be made for a company that can get it right.
0:00 Introduction
0:52 The potential of 3D printing
Factory clip art graphic: https://publicdomainvectors.org/en/free-clipart/Factory-silhouette-vector-image/82917.html
Cardboard box clip art: https://freesvg.org/vector-image-of-cartoon-box-line-art
Truck clip art: https://commons.wikimedia.org/wiki/File:Linecons_small-truck.svg
House clip art: https://openclipart.org/detail/216059/simple-house
Injection molding video 1: https://www.youtube.com/watch?v=WUrALuorYXg
Injection molding video 2: https://www.youtube.com/watch?v=og4Uw5bJhO0
Packaging video: https://www.youtube.com/watch?v=2eSPi8o5w0M
Cargo ship video: https://www.youtube.com/watch?v=D0LgXOzcyTo
Freight truck video: https://www.youtube.com/watch?v=kuOr2-wXrGc
3D printing vs injection molding video: https://youtu.be/xW1Ob5uzfF8
Democratic definition: https://www.merriam-webster.com/dictionary/democratic
4:43 The current 3D printer market and user experience
General 3D printer buyer’s guide: https://youtu.be/JCHUOQ7yby0
6:00 Comparing 3D printers to common consumer products
8:17 Automotive vs 3D printing industry innovation
Car crash test video: https://www.youtube.com/watch?v=TikJC0x65X0
Voron Design: https://vorondesign.com/
Rat Rig V-core 3 playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsO0oLRZ1wiYvvpbhj4EV-Nf
SecKit SK-Tank playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsN9t4-9rcoVKoYQgXFqCA97
Prusa XL page: https://www.prusa3d.com/product/original-prusa-xl-2/
12:15 Conclusion
Previous video on what the 3D printer community actually wants: https://youtu.be/4dYStVwTfFE
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 printer trends are limiting mainstream acceptance: The 3D printing paradox](https://i.ytimg.com/vi/SZEN3Mej908/mqdefault.jpg)
![3D printing mysteries that need to be solved in 2024
Check out my 2nd channel, TT Racing: https://www.youtube.com/@ttracingYT
As 2023 comes to a close, there’s some burning questions I’d like help answering. In this video, I explore six mysteries on my mind, in the hope we can solve them in 2024.
Generally, this video is fun, but community toxicity is a serious topic worth examining. Let’s hope we can do so in a positive way.
0:00 Introduction
0:42 What ever happened to non-planar printing?
Non-planar printing video: https://youtu.be/gmePlcU0TRw
https://www.nonplanar.xyz/
CNC Kitchen Non-planar website: https://www.cnckitchen.com/blog/non-planar-3d-printing-by-bending-g-code
3:13 Does filament flow differently in each hemisphere?
Coriolis force wiki: https://en.wikipedia.org/wiki/Coriolis_force
Toilet flushing article: https://www.howitworksdaily.com/do-toilets-flush-in-different-directions-in-the-northern-and-southern-hemisphere/
4:42 Why is the maker community becoming more toxic?
Normal distribution graphic by D Wells: https://commons.wikimedia.org/wiki/File:Standard_Normal_Distribution.png
RatRig build: https://www.youtube.com/playlist?list=PLGqRUdq5ULsO0oLRZ1wiYvvpbhj4EV-Nf
SK-tank build: https://www.youtube.com/playlist?list=PLGqRUdq5ULsN9t4-9rcoVKoYQgXFqCA97
8:36 Why does my filament snap like this?
9:20 What is the 3Dbenchy’s secret?
3Dbenchy website: https://www.3dbenchy.com/features/
3Dbenchy explainer video: https://youtu.be/t_7EMnQ6Rlc
Real Same Prentice YouTube channel: https://www.youtube.com/therealsamprentice
10:55 What creates these surface artefacts?
12:44 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 printing mysteries that need to be solved in 2024](https://i.ytimg.com/vi/SeKjtBH2K_c/mqdefault.jpg)
