From 3f0c12e52889bf6a041a8bcebd43e7edc701fa86 Mon Sep 17 00:00:00 2001 From: George Bryant Date: Sun, 31 Jan 2021 15:28:20 +0000 Subject: [PATCH] Rearrange bearing distributor list - It didn't need to take up so many lines - Also added Bosch's contact locator tool to make it easier for people to find other distributors, as suggested by /u/d4baller --- hardware/Mechanicals-BTU-Mod/README.md | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/hardware/Mechanicals-BTU-Mod/README.md b/hardware/Mechanicals-BTU-Mod/README.md index e7ef107..b016ecc 100644 --- a/hardware/Mechanicals-BTU-Mod/README.md +++ b/hardware/Mechanicals-BTU-Mod/README.md @@ -8,7 +8,7 @@ Ball transfer units (or BTUs) are omnidirectional bearings, as opposed to the si This mod is a new 3D-printable top piece for the Ploopy which contains holes for ball transfer units instead of roller bearings. -Designer: [George Bryant](https://github.com/gbrnt) with help from [/u/d4baller](https://reddit.com/user/d4baller) +Designer: [George Bryant](https://github.com/gbrnt) with help and bearing advice from [/u/d4baller](https://reddit.com/user/d4baller) ## Versions ### v3 @@ -24,21 +24,12 @@ Currently untested! It might collide with something internally, particularly if ## Buying the BTUs The particular BTU this mod is designed for is the Bosch-Rexroth R053010810, or KU-B8-OFK. A set of three is about 20-30 USD, depending on where in the world you are and where you buy them from. Here are some sources we've found so far: -* [Bosch-Rexroth](https://www.boschrexroth.com/en/xc/products/product-groups/linear-motion-technology/ball-transfer-units-and-tolerance-rings/ball-transfer-units/r0530-with-sheet-steel-housing/r0530-1-with-sheet-steel-housing) - * UK (and worldwide?) - * Requires you to be a company (have a VAT number) -* [Livhaven](https://store.livhaven.com/r053010810-bosch-rexroth-ball-transfer-unit) - * US-based - * Doesn't require you to be a company, but overseas shipping is expensive -* [L-System](https://l-system.nu/webshop/linear-technology/ball-transfer-units-and-tolerance-rings/ball-transfer-units/type-r0530/ball-transfer-unit-ku-b8-ofk/) - * Sweden-based - * Allows you to select "private customer" but still has mandatory field for VAT number -* [Spareparts](https://www.sp-spareparts.com/en/p/r053010810-bosch-rexroth) - * Ireland-based? Ships to UK, and maybe elsewhere. - * Does not require you to be a company. -* [Rodivago](https://rodavigo.net/es/p/bola-transportadora-con-carter-de-metal-laminado-ref-053010810/557053010810 - * Spain-based - * May require being a company. +* [Bosch-Rexroth](https://www.boschrexroth.com/en/xc/products/product-groups/linear-motion-technology/ball-transfer-units-and-tolerance-rings/ball-transfer-units/r0530-with-sheet-steel-housing/r0530-1-with-sheet-steel-housing) - UK and worldwide, but requires you to be a company (e.g. have a VAT number) +* [Livhaven](https://store.livhaven.com/r053010810-bosch-rexroth-ball-transfer-unit) - US-based. Doesn't require company information, but overseas shipping is expensive. +* [L-System](https://l-system.nu/webshop/linear-technology/ball-transfer-units-and-tolerance-rings/ball-transfer-units/type-r0530/ball-transfer-unit-ku-b8-ofk/) - Sweden-based. Might allow private customers to buy. +* [Spareparts](https://www.sp-spareparts.com/en/p/r053010810-bosch-rexroth) - Ireland-based. Ships to UK and maybe elsewhere. Does sell to private customers. +* [Rodivago](https://rodavigo.net/es/p/bola-transportadora-con-carter-de-metal-laminado-ref-053010810/557053010810) - Spain-based. May require being a company. +* For other sources, try Bosch-Rexroth's [contact locator tool](https://addresses.boschrexroth.com/) - find a distributor near you, and search for the bearing part number on their website. ## Printing With a speed of 50-60mm/s, support on the build plate and a layer height of 0.3mm you should get a print time of ~12.5 hours. It may be worth tweaking various settings to reduce it further.