I let loose the max speeds +accelerations and zipped mine around the table too, it was super cool.
I think I’ll be tuning the cutting speeds a bit more when I get to cutting my thin polycarbonate sheets.
It seems like arcs and accelerations will be the thing holding it back, but there will be room for trial and error I guess!
What an amazing video! I haven’t seen the whole of it, but it’s very comfortable to listen to and the video itself seems well made. This is golden, I would recommend it for all who are considering both the LR3 or any other cnc.
That is really excellent. @vicious1
This is going in the docs for sure, just waiting on the final edit/s. It covers sooooo much, thank you.
Thanks for the kind “shout out” and for making such an awesome video! Great job! I love the video! You also did a great job on your LR3!
Finished my video. Added content to cover standard and custom struts, cuts and more. Hope this helps folks figuring out whether, and how to build their LowRider 3!
@vicious1, please let me know if I’ve inappropriately, overly misused V1E content.
Feedback appreciated, cheers!
00:00 - Intro and video goals
00:48 - WHAT’s a LowRider CNC for? Answer: Subtractive Manufacturing
01:30 - WHY build a LowRider? Answer: Step up from my baby CNC, right balance of quality and price for me.
02:20 - MPCNC is good, but I want a LowRider 3
02:43 - Pick your own size, or sizes even…
04:51 - Using Controller+TFT case by V1E Community member Doug Joseph
04:55 - Hassle free kits and parts available from https://shop.v1engineering.com, Controllers come with software preloaded.
05:48 - Parts printed, milled and delivered
06:24 - Unboxing V1E LowRider 3 Kit. Woot!
06:28 - Assemble LR3 Core
06:36 - Ream holes, reverse drill helps screws slip in tight
06:54 - Assemble X Drive
07:12 - Mount X Drive
07:15 - Stare at your Core for a bit, it’s so pretty
07:16 - Mount X endstop to Core
07:25 - Assemble Y Steppers
07:51 - Soldered Z endstops, too tight for spade connectors
07:56 - XZ Lead screw stubs. Reverse drill with 13/32 bit
08:02 - Assemble XZ plates
08:24 - Marry XZ to YZ plates
08:34 - Marry XZ to YZ plate rails
08:45 - Mount Z drive to YZ plate
08:55 - Wiring Z endstops, solder
09:03 - Wiring Z endstops, test
09:08 - Assemble Z endstops
09:16 - Mount Z endstops
09:18 - Adjust XZ plate, was binding
09:26 - Mount Z endstops
09:31 - Mount Y Drive
09:42 - Wiring Y endstop, solder
09:50 - Mount Y endstop, wiring routing
09:55 - Wiring routing
09:57 - Mount Y endstop, wiring routing
10:00 - Assemble wheels
10:05 - Mount wheels to YZ plate
10:10 - Assemble and mount Rail Rollers
10:19 - Assemble Beam, strut order… 1) Front, 2) Bottom, 3) Back
10:21 - mount braces
10:25 - LR3 Calculator, pipe and table size
10:28 - Front, loosely insert screws
10:36 - Bottom, loosely insert screws
10:41 - Rear, loosely insert screws
10:51 - Front, check straight, snug clamps
10:58 - Mount core
11:00 - Mount YZ plate
11:10 - Assemble X Belt
11:10 - Insert X Belt
11:12 - Mount X Belt holder
11:15 - Check X Belt end not blocking Z axis motion
11:17 - Mount X belt tensioner
11:28 - Fix for if X Belt stub is too loose
11:31 - Attach PETG tool mount
11:38 - Attach Vac hose mount
11:40 - Wiring SKR Pro 1.2 Controller
11:40 - Bend/clip diag driver pin
11:45 - Change jumpers
11:48 - Mount drivers
11:54 - Remove JST shields
12:03 - TMC2209 driver pinouts
12:05 - Wiring 〉 Route and Sleeve (1/2" wrap)
12:05 - Left YZ sleeve
12:15 - Routing right YZ
12:24 - Extend right YZ, use solder butt connectors
12:54 - Right YZ, 1/2" sleeve wrap
12:59 - NOT using cable gland, case holes too small
13:05 - Extend wires for X axis
13:16 - Wire X axis, test endstop
13:23 - Wire X axis routing and 1/2" sleeve
13:46 - X axis, verify range of motion. Router cord blockage
14:06 - Wire X axis, cable management
14:20 - Case wiring, routing power
14:42 - Controller wiring, driver endstops
15:03 - Wiring controller, fans and TFT
15:37 - Build minimum viable Sled. Use LR3 Sled edition to finish LR3!
17:12 - Motion test, FAIL - Y stepper wiring reversed
17:21 - Motion test, SUCCESS - Homed and move as expected
17:28 - Crown Test, SUCCESS, kinda…
17:47 - Struts 〉 Initial squaring
17:48 - Attach pen to Core
17:50 - Generate test gcode
17:51 - Connect via Repetier
17:53 - FAIL, relative positioning was set 
17:54 - Typed gcode for corner moves
18:02 - Measure squareness
18:05 - Config homing offsets M666
18:07 - Z Leveling
18:19 - Struts 〉 Design
Calc size, download files
Use OpenScad & Estlcam to prepare gcode
18:31 - Struts 〉 First cut ~56mins
18:31 - Fasten spoilboard and stock
18:40 - Cut first strut
18:47 - Post cleanup, too long
18:54 - Struts 〉 Second cut ~42mins
19:02 - Post cleanup, Remove/trim debris, sand, vac
19:09 - Paint it black
19:16 - Surfacing Spoilboard
19:16 - Create toolpath
19:17 - Cut ~0.5mm in ~61mins
19:25 - Struts 〉 Make custom front strut
19:25 - OpenScad 〉 Customize, export .SVG
19:26 - Estlcam 〉 Create and Preview toolpaths
19:28 - Repetier 〉 Load .gcode
19:28 - Carve and cut 42mins
19:35 - Struts 〉 Paint 〉 2nd coat, protect via Shellac/Polycrylic
19:37 - Final Assembly - Mount struts to beam
19:40 - Temporarily disassemble beam
19:57 - Mount bottom strut
20:02 - Mount front strut
20:07 - Mount YZ plates and rear strut
20:17 - Wrap up
Future upgrades - Table, Vac, drag chain and more…
Check out https://forum.v1engineering.com
Thank you! Want to see more?
Fantasitico! Still good with me using this as, THE, LR video for the instructions?
Thank you @vicious1, please use this how ever you want. This is my appreciation of the work you and others have put into this project. The current thumbnail is rubbish, I’ll work on that. I have the original slower realtime footage, happy to upload that if/when folks express that it’ll help clarify some of the build steps. Cheers!
You did awesome. Amazing video!
Subscribed. 
