Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project (Page 1 of 2)

**adrian** · 2013-11-08 10:18:41

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Topic: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Hey, I'm sure lots of us tinkerers got the email from RRD this morning, but figured I'd share it more widely.

RRD have launched a new IndieGoGo campaign to 'test the waters' on demand for a new All-Metal Extruder Assembly - i.e, all the bits not counting the Hotend itself (think Mk IV/V 'lawsy' Extruder Assemblies)

It looks quite nice, being stacked slightly differently to how the stock SD or most other common extruder setups are. Its designed to capture all 'groove mount' style hotends (aka, J-Heads, Magmas, Merlins, Prusas) and has mount pics of nearly all of them except the E3D.. which I'm 99% confident will work as well having reviewed the tolerances closely. Its also demo'ed and 'designed' more with the increasing popularity of 'perpendicular' mounted steppers.. meaning the configuration demo'ed in the video is actually on an Ord Bot (pretty sure its the same as mine, a Hadron) where you tend to usually mount the assembly 'sideways' to what we would traditionally see on a Solidoodle however it should work fine in the SD Orientation given its a tad shorter than the front-to-back size of the 'stock' extruder assembly and it also features boltholes in the place that Lawsys hotend would have them.. meaning I'm sure it could be fashioned to fit no issues. But people here often have more than one printer don't we

I've jumped in and grabbed a 'Lite' and an 'XL' version, for initial testing and curiosity. The XL Comes with a 5:1 Geared NEMA. The plan is to ship immediately on the campaign finishing, as they are all built and ready now, its more a market experiment. So if you don't want to get one *now*, they will probably be available in commercial quantities via OEM (where a lot of RRD stuff ends up ) and via the RRD Store and Ebay shops in mid-January/Feb 2014...

If you more info, the campaign is over at http://www.indiegogo.com/projects/bulld … t/x/590704 . I personally went with the Lite as I have more hotends than I should really have already, so the options of Prusa's, Magmas or Merlins didn't impress me...

Declaration: I have no affiliation, I've just bought crap loads from RRD in the past and always been happy so figure this will be a winner too. But I provide this information with no more prior knowledge about the effectiveness of the assembly than anyone else, and it'll be late December before I can comment further on the veracity of their claims

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**adrian** · 2013-11-08 13:39:27

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Ok, I've been chatting to RRD, and I've discovered there is a slight issue with the E3D nozzle at the moment

Seems the E3D is not precisely groovemount. Given how the holder plate is currently designed to integrate, there needs to be some Fabrihacktion to get it to work. RRD are very keen though to get it to work with the E3D natively, but the current batch addresses the 'standard' that works for all 5 other major hotends, just not the slightly-different-but-enough-to-matter E3D..

I will keep you posted, but they are keen to see a factory solution, but it wont likely make any of the indiegogo campaign. Doesn't deter myself, I believe I can 'solve it' once I have it in my hands, but I have a truck load of j-heads otherwise anyway... maybe I'll get a Merlin or Magma too for fun *shrug*

EDIT: Issue resolved, see newer pics below in thread + new STL Holder

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**muddtt** · 2013-11-08 15:43:40

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

These guys made an all metal extruder assembly.

http://www.zentoolworks.com/product_inf … cts_id=198

**reprapdiscount** · 2013-11-08 16:29:22

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

@adrian

which extruder are you using at the moment?

**elmoret** · 2013-11-08 16:36:31

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Why not a shim that you tap into place to fill that gap on the E3D?

Also this design seems like it is kind of a pain to clean if you have a jam.

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**2n2r5** · 2013-11-08 16:48:37

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

elmoret wrote:

Why not a shim that you tap into place to fill that gap on the E3D?
Also this design seems like it is kind of a pain to clean if you have a jam.

The jams on an E3D are fixed usually by just taking the nozzle off. If it were the OEM SD hotend then I am sure it would be a PITA. I am a little curious how the mounting will work out with the SD. I guess I will find out.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

**elmoret** · 2013-11-08 17:01:54

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

I meant clearing a jam like the resulting filament dust on the teeth of the drive wheel.

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E3Dv6 All Metal Hotend - the premier 3D printing hotend

**adrian** · 2013-11-09 01:00:27

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

reprapdiscount wrote:

@adrian
which extruder are you using at the moment?

Howdy there RRD!

At the moment, I'm using on the Solidoodle this style of Extruder combined with the E3D hotend (a lot of the time)
http://www.thingiverse.com/thing:111213/

On the OrdBot Hadron, I'm using a home-made-hackup... its a cross between the 'minimalistic extruder' and the J-Head holder thats popular over on Barts forum - again so I can use the E3D. http://www.thingiverse.com/thing:59855 with bits added and removed to make it work.

**reprapdiscount** · 2013-11-10 04:43:16

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

elmoret wrote:

I meant clearing a jam like the resulting filament dust on the teeth of the drive wheel.

you have to remove the aluminum plate on the side, but i see that this plate also can be modified to not be removed any more, by grinding 2 small sides, i will show monday pictures what i mean

**reprapdiscount** · 2013-11-10 04:48:58

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

adrian wrote:

reprapdiscount wrote:
@adrian
which extruder are you using at the moment?
Howdy there RRD!
At the moment, I'm using on the Solidoodle this style of Extruder combined with the E3D hotend (a lot of the time)

On the OrdBot Hadron, I'm using a home-made-hackup... its a cross between the 'minimalistic extruder' and the J-Head holder thats popular over on Barts forum - again so I can use the E3D. with bits added and removed to make it work.

i took a closer look at the e3d nozzle, you can make it fit into the extruder i think, please give it a try. since the e3d holder is not precise machined, you have to use something like a washer to fix it inside

meanwhile i will redraw the fan holder to suit this nozzle and will upload here, you can print it, remove the fan from the holder comes with my extruder and use the new holder instead.

**reprapdiscount** · 2013-11-10 04:49:43

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

an offtopic question

does any one know why i cannot post links?

**muddtt** · 2013-11-10 04:59:15

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

reprapdiscount wrote:

an offtopic question
does any one know why i cannot post links?

you need a certain number of minimum posts before you can post links. Prevents spam.

**Serin** · 2013-11-10 06:58:06

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Ohhh shiny!
So if I were looking to throw the stock SD extruder at the wall, which of these would be a good replacement?

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons

**adrian** · 2013-11-10 06:59:27

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Serin wrote:

Ohhh shiny!
So if I were looking to throw the stock SD extruder at the wall, which of these would be a good replacement?

The lite version would be the most direct replacement

**elmoret** · 2013-11-10 06:59:31

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Do you mean extruder or hotend?

The forum seems to like the E3D hot ends.

Filastruder - the robust, inexpensive filament extruder
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**reprapdiscount** · 2013-11-11 09:31:10

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

I managed to tweak the E3D inside the Bulldog extruder but i cannot post pictures because i cannot post links, please check buildlog.net and seach reprapdiscount

Meanwhile i will also email the pictures to adrian, maybe he can post them.

**adrian** · 2013-11-11 10:19:58

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Thanks very much for getting this sorted in such a short period of time!

Heres the pics of the new style holder + the E3D mounted. STL File is attached to this post.

EDIT: Snipped the pics - the final version images are in post below!

STL for the E3D Compatible Mount:

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**adrian** · 2013-11-20 14:35:04

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Update: I've got my hands on an XL version already and succesfully mounted it to my Solidoodle3! Pics, Video and mini-review over at http://www.soliforum.com/topic/4594/rep … idoodle-3/

**adrian** · 2013-11-25 12:49:20

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

New Pics of the Final version out just fresh from RRD!

At their request to avoid confusion, I've removed the pre-release images and have added these in their place. Avoids confusion etc. Plus they are just better pics anyway Theres a few tiny changes - mainly to do with the front plate seating and cleaning access to the main drive cog.

First up; "Meet the Family" - LITE on the Left (1.75mm ONLY, Non-Geared) ; XL on the Right (1.75 & 3mm, 5.18:1 Geared)

The LITE Pack - Note the included PTFE and cleaning brushes!

The XL Pack;

Everyone loves some nude pictures - Heres the Lite and XL bodies all stripped down
XL:

Lite:

Heres a Bulldog XL holding an E3D:

And holding onto RRD's new Hexagon Hotend :

And heres a pic of all the hotends confirmed to work with this extruder (Handy height comparison too!)

Quite a few more pics of it with various hotends, and perhaps a closer look at that Hexagon Hotend (I'm keen! ) on my Google+ post over here: https://plus.google.com/107836625426784 … UW7jYcKP6y

**wire10ga** · 2013-11-26 18:09:09

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

ooohhh shinny

SD2 - Glass Bed, Fans on PCB and Y motor, Custom enclosure
Slicer - Simplify3D

**2n2r5** · 2013-11-26 22:57:14

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Here are all of the mounting options so far for the Bulldog. These have only been tested with the E3D and may require addition modification to work with other (shorter) hotends.

For replacing the top panel of Lawys's carriage for use with belts print - bulldog_lawsy_carriage_top_replacement_belts.stl

For replacing the top panel of Lawys's carriage for use with fishing line or cables print - bulldog_lawsy_carriage_top_replacement_cable.stl

For Adapting to Lawys's carriage top instead of replacing it print - bulldog_Lawsy_carriage_topper.stl

For Adapting to the OEM SD carriage print - bulldog_SD_carriage_topper.stl

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bulldog_Lawsy_carriage_topper.stl 301.09 kb, 129 downloads since 2013-11-26

bulldog_lawsy_carriage_top_replacement_belts.stl 512.87 kb, 96 downloads since 2013-11-26

bulldog_lawsy_carriage_top_replacement_cable.stl 1.17 mb, 64 downloads since 2013-11-26

Bulldog_mount_E3D.stl 615.7 kb, 131 downloads since 2013-11-26

bulldog_SD_carriage_topper.stl 244.35 kb, 96 downloads since 2013-11-26

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SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

**2n2r5** · 2013-11-26 22:58:32

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Here is the extruder fan mount that I am using and the Sketchup file for everything.

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Bulldog_All.skp 738 kb, 50 downloads since 2013-11-26

Bulldog_E3D_40mm_Fan.stl 316.41 kb, 95 downloads since 2013-11-26

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SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

**techbuilder2175** · 2013-11-26 23:11:21

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Hey 2n2r5,

Have you had the chance to mount it and has it removed more moire then the 0.9 degree stepper with the DRV8825?

Powder coated steel enclosure, 1/4" Surface grounded hardened aluminum plate, MK2A Heat bed, .200 Polished fused quartz plate, Machined quick change hot bed mount, E3D hot end, Ramps 1.4, DRV8825 stepper motor drivers

**2n2r5** · 2013-11-26 23:39:27

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Here is a test print. I had to hold the vase up to the light so that you could see any moire. This is without the DRV8825. I will be putting it back on tonight probably. Good results and I am just at 500 steps/mm. I also attached a picture of my new coupler. Someone made it for me and I am not sure whether they want to be named. If someone is interested, I can probably put you in contact with him. I like the coupler because it doesn't use screws on the 8mm side and has zero backlash since it is a solid design.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

**techbuilder2175** · 2013-11-26 23:53:33

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Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

That coupler only will only work with the threadless ball screw as the variations in the rod will cause it to bind.

I look forward to seeing the difference the 1/32 micro stepping makes

Powder coated steel enclosure, 1/4" Surface grounded hardened aluminum plate, MK2A Heat bed, .200 Polished fused quartz plate, Machined quick change hot bed mount, E3D hot end, Ramps 1.4, DRV8825 stepper motor drivers

Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project (Page 1 of 2)

Posts: 1 to 25 of 35

1 Topic by adrian 2013-11-08 10:18:41 (edited by adrian 2013-11-25 12:54:34)

Topic: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

2 Reply by adrian 2013-11-08 13:39:27 (edited by adrian 2013-11-11 10:22:41)

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

3 Reply by muddtt 2013-11-08 15:43:40

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

4 Reply by reprapdiscount 2013-11-08 16:29:22

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

5 Reply by elmoret 2013-11-08 16:36:31

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

6 Reply by 2n2r5 2013-11-08 16:48:37

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

7 Reply by elmoret 2013-11-08 17:01:54

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

8 Reply by adrian 2013-11-09 01:00:27

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

9 Reply by reprapdiscount 2013-11-10 04:43:16

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

10 Reply by reprapdiscount 2013-11-10 04:48:58

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

11 Reply by reprapdiscount 2013-11-10 04:49:43

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

12 Reply by muddtt 2013-11-10 04:59:15

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

13 Reply by Serin 2013-11-10 06:58:06

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

14 Reply by adrian 2013-11-10 06:59:27

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

15 Reply by elmoret 2013-11-10 06:59:31

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

16 Reply by reprapdiscount 2013-11-11 09:31:10

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

17 Reply by adrian 2013-11-11 10:19:58 (edited by adrian 2013-11-25 12:22:38)

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

18 Reply by adrian 2013-11-20 14:35:04 (edited by adrian 2013-11-20 14:36:14)

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

19 Reply by adrian 2013-11-25 12:49:20

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

20 Reply by wire10ga 2013-11-26 18:09:09

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

21 Reply by 2n2r5 2013-11-26 22:57:14

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

22 Reply by 2n2r5 2013-11-26 22:58:32

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

23 Reply by techbuilder2175 2013-11-26 23:11:21

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24 Reply by 2n2r5 2013-11-26 23:39:27

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

25 Reply by techbuilder2175 2013-11-26 23:53:33

Re: Updated Pics! - RepRapDiscount "Bulldog" Allmetal Extruder Project

Posts: 1 to 25 of 35