From 074dfd8d55edbb3b6eed342ecef93f4d718799ac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thea=20Sch=C3=B6bl?= Date: Mon, 26 Feb 2024 00:13:38 +0100 Subject: [PATCH] feat: r25 improvements --- README.md | 24 +++++++++++++----------- r25.svg | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+), 11 deletions(-) create mode 100644 r25.svg diff --git a/README.md b/README.md index c83d220..4cda96f 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,7 @@ # Brick Monorail Parametric Lego-compatible monorail tracks, designed specifically for 3d printing. +Two orders of magnitude cheaper than buying used. Since the parts are made parametric, you can have any length or curve radius you want, but these are the original tracks you can replicate @@ -11,9 +12,9 @@ As an overview, or why it's worth a try: They print rapidly on modern printers, | --------------------- | ------------- | ---------- | | C15 | ~10ct | 45m | | C7 | ~5ct | 15m | -| S21 | ~12ct | 1h | -| S7 | ~5ct | 15m | -| S6 | ~5ct | 15m | +| S25 | ~12ct | 1h | +| S10 | ~5ct | 15m | +| S5 | ~5ct | 15m | | Classic R28 90° Curve | ~25ct | 2h | | Classic R28 45° Curve | ~12ct | 1h | | Classic L32 Straight | ~20ct | 1.5h | @@ -53,24 +54,25 @@ grid with turntables. - Straight S21 - Straight S7 - Straight S6 +- Incline I4 -Two C15 and one C7 make exactly a 90 degree turn, where every part stays on the stud grid. +How it fits -An s-curve with C7 moves two studs, and can be extended by 1 stud -with S7 or 3 studs with S21. +- Two C15 and one C7 make exactly a 90 degree turn, where every part stays on the stud grid. +- An s-curve with C15 moves over 20 studs, diagonals can be done with any length divisible by 5 +- An s-curve with C7 moves two studs, but diagonals require a full S25 to land cleanly again. -An s-curve with C15 moves over 20 studs, and can be extended by 8 studs -with S6 or 28 studs with S21 straights. +![](./r25.svg) ## Printing To be compatible with standard bricks, the following print settings are strongly advised - Nozzle: **0.4**, this is equivalent to 1 LDU. -- Layer height: **0.2** will also do. Refrain from using 0.15, since that does not cleanly divides the LDU. - - Make sure your initial layer height is either 0.2 or 0.4! +- Layer height: **0.2**, less than that is barely better and just causes more problems than it solves. + If you want to go lower, it's advisable to use heights that satisfy `0.4 % h == 0` such as 0.1. + - **Make sure your initial layer height is either 0.2 or 0.4!** - Supports: **yes**, normal, don't use tree supports. - what you would call easy for the printer, so be on the lookout. - Set your "Initial Layer Horizontal Expansion" to a value that works for you, for example -0.2mm to compensate for elephant's foot. Alternatively, you can trim the extra plastic off by hand. diff --git a/r25.svg b/r25.svg new file mode 100644 index 0000000..09cdc04 --- /dev/null +++ b/r25.svg @@ -0,0 +1,51 @@ + + + + + + + + + + + + + + R25 Monorail + + + + + + + C15 + + + C7 + + + S25 + + S10 + + S5 + + S4 + + + + + + + + + + + + + + +