Introducing the RRD "Bulldog" extruder [attachment 20896 Bulldog.jpg] [attachment 20894 bulldog1.jpg] [attachment 20895 bulldog2.jpg] Features: -symetric design (you can mount motor motor left or right side) - additional 6mm inner screw thread - fully assembled and tested - full metal extruder - grove mount compatible hotend holder - stable and precise extruder drive - direct drive extruder (for Bulldog Lite only!) - HIGH precision gear box NEMA 17 motor (5:1) (Bulldog XL only!) - integrated fan into the mount for hotend cooling - can be used as a classic and bowden extruder drive - ultra sharp filament pulley - easy filament change, just pushing the bar with your hands - 100% compatible with most popular hotends. (J-Head old and new version, Merlin hotend, Magma hotend, Prusa Nozzle) [attachment 20897 jhead1.jpg] [attachment 20898 magma1.jpg] [attachment 20899 merlin1.jpg] [attachment 20900 prusa1.jpg] Note: It works also with prusa version 3 but at the moment i am totaly sold out of prusa nozzles, i will update the pictures as soon i am getting stock again. If you are interested, you can purchase it from our indiegogo campaign: [www.indiegogo.com] Best Regards, Elvira www.reprapdiscount.com https://reprap.org/forum/read.php?94,263985,263985#msg-263985 Sat, 10 Oct 2026 01:05:38 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?94,263985,443845#msg-443845 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,443845#msg-443845
Quote
thecrazy
Did anyone ever get the design files?

RRD promotes this is an open source project but I cant find any files, not even in their open source section on their site.

I've looked many times, can not find anything. As far as I know my files on Thingiverse are the only reference, they are drawn to size if you wanted to reference those. I will eventually get to the groovehead mount if I can find it again...]]> tjb1 For Sale Mon, 15 Dec 2014 09:15:30 -0500 https://reprap.org/forum/read.php?94,263985,442012#msg-442012 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,442012#msg-442012
Im currently making my own version of this as could not find desing files.]]> Roboteernat For Sale Wed, 10 Dec 2014 10:07:58 -0500 https://reprap.org/forum/read.php?94,263985,442009#msg-442009 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,442009#msg-442009
RRD promotes this is an open source project but I cant find any files, not even in their open source section on their site.]]> thecrazy For Sale Wed, 10 Dec 2014 09:58:48 -0500 https://reprap.org/forum/read.php?94,263985,339473#msg-339473 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,339473#msg-339473
Quote
matthias_steiner
Hello,

i would also be interested in 3D data of the Bulldog XL extruder. So that I could construct the needed support for my RepRap printer. Thanks in advance for the data. Please if possible in the STEP format.

regards
Matthias

[www.thingiverse.com]]]> tjb1 For Sale Sun, 13 Apr 2014 23:37:59 -0400 https://reprap.org/forum/read.php?94,263985,320135#msg-320135 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,320135#msg-320135
i would also be interested in 3D data of the Bulldog XL extruder. So that I could construct the needed support for my RepRap printer. Thanks in advance for the data. Please if possible in the STEP format.

regards
Matthias]]> matthias_steiner For Sale Wed, 05 Mar 2014 10:36:22 -0500 https://reprap.org/forum/read.php?94,263985,284738#msg-284738 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,284738#msg-284738 BV3D For Sale Thu, 26 Dec 2013 02:37:05 -0500 https://reprap.org/forum/read.php?94,263985,283714#msg-283714 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,283714#msg-283714 is it possible to get the CAD files from the extruder ?
I need it for my CAD-drawing for my own 3D printer.

best regarts

Chris]]> Chris0z For Sale Mon, 23 Dec 2013 07:50:31 -0500 https://reprap.org/forum/read.php?94,263985,278814#msg-278814 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,278814#msg-278814
[attachment 22808 weight_bulldog_LITE.jpg] [attachment 22809 weight_bulldog_xl.jpg]


[attachment 22803 IMG_9528Custom.jpg] [attachment 22804 IMG_9530Custom.jpg]

[attachment 22805 IMG_9531Custom.jpg] [attachment 22806 IMG_9532Custom.jpg]

[attachment 22807 k_extruder_1.jpg]]]> Reprapdiscount For Sale Wed, 11 Dec 2013 20:44:38 -0500 https://reprap.org/forum/read.php?94,263985,278813#msg-278813 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,278813#msg-278813
[attachment 22802 annodized_all.jpg]]]> Reprapdiscount For Sale Wed, 11 Dec 2013 20:37:11 -0500 https://reprap.org/forum/read.php?94,263985,277047#msg-277047 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,277047#msg-277047
10x Bulldog Lite for 600 usd including FedEx shipping
[www.indiegogo.com]

10x Bulldog XL for 1000 usd including FedEx shipping
[www.indiegogo.com]]]> Reprapdiscount For Sale Sat, 07 Dec 2013 20:05:07 -0500 https://reprap.org/forum/read.php?94,263985,271800#msg-271800 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,271800#msg-271800 Hotends used for test
[attachment 21798 hotend_comparation.jpg]

Tested with J-Head
[attachment 21802 with_jhead_new.jpg]

Tested with prusa v3 hotend
[attachment 21805 with_prusa_v3.jpg]

Tested with Prusanozzle v1 and v2
[attachment 21799 prusa_v1_and_v2.jpg]

Tested with Merlin hotend
[attachment 21804 with_merlin_hotend.jpg]

Tested with RRD Hexagon hotend
[attachment 21801 with_hexagon_hotend.jpg]

Tested with E3D hotend
[attachment 21800 with_e3d_hotend.jpg]

Tested with Magma hotend
[attachment 21803 with_magma_hotend.jpg]]]> Reprapdiscount For Sale Mon, 25 Nov 2013 12:54:40 -0500 https://reprap.org/forum/read.php?94,263985,271793#msg-271793 Re: Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,271793#msg-271793 Some more picture of the Reprapdiscount Bulldog Extruders

Reprapdiscount Bulldog Extruders got a symmetric design
[attachment 21792 bulldog_familly.jpg]

The machined parts
[attachment 21794 bulldog_XL_parts_1.jpg]

The content of package Reprapdiscount Bulldog XL
[attachment 21795 bulldog_xl_kit.jpg]

The content of package Reprapdiscount Bulldog LITE
[attachment 21793 bulldog_lite_kit.jpg]

The Reprapdiscount Bulldog Extruder can be used as a bowden extruder as well
[attachment 21797 bulldog_XL_bowden_option.jpg]]]> Reprapdiscount For Sale Mon, 25 Nov 2013 12:42:36 -0500 https://reprap.org/forum/read.php?94,263985,263985#msg-263985 Introducing the RRD "Bulldog" extruder https://reprap.org/forum/read.php?94,263985,263985#msg-263985
[attachment 20894 bulldog1.jpg]

[attachment 20895 bulldog2.jpg]



Features:

-symetric design (you can mount motor motor left or right side)
- additional 6mm inner screw thread
- fully assembled and tested
- full metal extruder
- grove mount compatible hotend holder
- stable and precise extruder drive
- direct drive extruder (for Bulldog Lite only!)
- HIGH precision gear box NEMA 17 motor (5:1) (Bulldog XL only!)
- integrated fan into the mount for hotend cooling
- can be used as a classic and bowden extruder drive
- ultra sharp filament pulley
- easy filament change, just pushing the bar with your hands
- 100% compatible with most popular hotends. (J-Head old and new version, Merlin hotend, Magma hotend, Prusa Nozzle)

[attachment 20897 jhead1.jpg]

[attachment 20898 magma1.jpg]

[attachment 20899 merlin1.jpg]

[attachment 20900 prusa1.jpg]

Note: It works also with prusa version 3 but at the moment i am totaly sold out of prusa nozzles, i will update the pictures as soon i am getting stock again.



If you are interested, you can purchase it from our indiegogo campaign:
[www.indiegogo.com]

Best Regards,
Elvira
www.reprapdiscount.com]]> Reprapdiscount For Sale Thu, 07 Nov 2013 11:58:25 -0500