Thanks a lot. I've just upgraded to this bulldog extruder and it was very hard to load filament, also it used to chew and break the filament. I've found your part and after a bit resizing (because I have step calibration problem), I placed it. Now all the problems are gone! Thanks again.
@lordbeowulf1885
4 жыл бұрын
Glad you were able to make it work! It's still not the easiest extruder to load compared to some others out there, but at least these parts help! Beo
@mountain177
3 жыл бұрын
I never could get my extruders to load properly. I always had to take loose the feed tube between the extruder and hotend and load it thag way. Im gonna try these!
@lordbeowulf1885
3 жыл бұрын
Good luck with it. They helped quite a bit, but those extruder drive assemblies are still pretty lousy. I ended up replacing the primary one with the assembly for an Ender 3 and it works great. Easy to load and prints better. I just need a mirror image version of that to be able to replace the other side. Chances are I'll just print a different mounting plate to allow using two of the Ender 3 feeds.
@mountain177
3 жыл бұрын
@@lordbeowulf1885 could you not clock the extruder around 180 deg, and reverse the rotation of the stepper for the extruder? Seems like that would work for the design of extruder im looking at.
@lordbeowulf1885
3 жыл бұрын
@@mountain177 Well, you could turn it around to feed from the front to the back (not ideal) or flip the motor upside down, which would require some modification to the reel holder to feed from the top. I'm also thinking the motor might get in the way, but it might be worth investigating. The other option I was considering was I think I could print the reversed mount body. I'd just need a few inserts to make it work. Beo
@TheRainHarvester
3 жыл бұрын
This is cool. I'm making a 3dp, (boot strapping with a cnc). I ran into all these same problems while cncing an extruder! I made the filament shoot right into the gear going in (and out). The first thing I print is going to be the Orbiter direct drive extruder. It's really light and pulls 40lbs I think. Btw- Just curious what you wanted to print with this big printer! Do you think I could print on heated glass from a flat bed scanner?
@robwray3563
5 жыл бұрын
I printed the little parts out and they worked perfect. Thank you
@lordbeowulf1885
5 жыл бұрын
Cool. Glad to hear it worked well for you. With such a small part you never know how well it will be reproduced on a different printer. Beo
@jh-wc1dt
5 жыл бұрын
To bad I bought this sometime ago before the videos I might of changed my mind. I also bought the 7” and the dual extruder. I’m just now putting it together and probably will change the extruder what would you recommend I change that to. Any favorites on your list. Thanks
@lordbeowulf1885
5 жыл бұрын
I bought a configurable Chimera/Cyclops (true mixing) extruder hot end kit that should mount in place of the current one. I haven't yet attempted to install and use it. Too much stuff going on! I do have a video of the parts I'll post soon. Would have posted one a few weeks ago but my phone got stolen with the video on it! =P Beo
@jh-wc1dt
5 жыл бұрын
Lord Beowulf Can you put a link of the extruder. This is my first 3D printer and you seem to have been around the block. I just started build this thing yesterday. Damn it is a monster. They don’t sort the bolts and nuts to well but it’s not to bad. Thanks
@lordbeowulf1885
5 жыл бұрын
@@jh-wc1dt Sure, here's the one I bought. www.aliexpress.com/item/3D-Printer-Cyclops-and-Chimera-Extrusion-2-in-1-out-E3D-hotend-Multi-Color-Extruder-kit/32742705685.html. While essentially the same size, it doesn't look like it has the same hole pattern as the one that comes with the printer. I haven't had time to investigate closer.
@tonywharton5220
5 жыл бұрын
Brilliant. Thank you. Tony
@lordbeowulf1885
5 жыл бұрын
Thanks! Glad you liked it. Beo
@mk7gti
5 жыл бұрын
I was planning on purchasing this printer. Would you call it a good value? I've assembled an AM8 with relative ease and this seemed to be a good next step. Looks like it could use some refinement after assembly, but I'm used to that at this point. Just wanna avoid a total dud.
@lordbeowulf1885
5 жыл бұрын
Hi Matt, Generally I still think it was a good value for what you're getting. If I knew what I know now I certainly wouldn't have done the dual Bowden extruder. I can't comment on the single direct drive extruder, but given the optional nature of that part (and the missing parts for my kit) the product really feels like the XYZ hardware and with the extruder(s) almost as an afterthought. Also, given my current setup and that I've always had a dedicated PC to run my printer(s) I probably wouldn't spring for the PI controller and touch screen. That was more just for a cool factor anyway and the fact that I haven't even messed with it yet goes hand-in-hand with that it was a vanity accessory, not a necessity. At any rate, if they fix some of the quality control issues they had on mine, I'd say it's probably as good as anything else you'll get for that price with similar capabilities. I think with a direct drive extruder, some of the concerns about the weakness of the frame are also reduced since you're not having to fight with the Bowden mounted on the rail. Of course now with this loader/guide fix, that should be less of an issue for me going forward as well.
@mk7gti
5 жыл бұрын
@@lordbeowulf1885, Thanks! After watching your videos, that's actually exactly what I'm planning on optioning. I agree, the dual extruder seems to be a waste and I'm real heavy on Octoprint, so I'm just going with the 12864 LCD. I'm thinking that I may even convert the single direct drive to a Bowden after seeing your comment above. I'll admit I'm a little disappointed in the frame choices they made, using 2020 in places that would seem for be more suited for 2040. I still think it's a decent value though and I appreciate your input! I think I'll be placing my order today!
@lordbeowulf1885
5 жыл бұрын
Glad I could help. Good luck with the purchase and let us know how it goes! Beo
@Lambontae
5 жыл бұрын
I wonder if these guides are good enough for flexible filament. (Stock it looks like it wouldn't work with flex at all...)
@lordbeowulf1885
5 жыл бұрын
They would probably help, but I don't think flex will work very well with a Bowden regardless. I think you'd want to go with a direct drive designed specifically for flex. There's a really nice looking (and very expensive) design I found on the market specifically for flexible materials. Look for the Flexion extruder. They make single and dual extruder designs.
@Lambontae
5 жыл бұрын
@@lordbeowulf1885 It can be done; something like this kzitem.info/news/bejne/06yZrHV5anydqWk .
@lordbeowulf1885
5 жыл бұрын
Try this again. My last post didn't post for some reason. Now to try to remember what I said! The PTFE tube up to the wheels looks similar to what Flexion is doing, although there they appear to cut it to a point and do both sides. Note too that both Flexion and the drive shown in the video you posted are using capture/compression bearings with a groove in them so that the filament is held in the right place through the pinch rollers. If you could find a bearing with a groove in the right place, it might be possible to do the same with the one that comes with the FT-6, although it would probably be easier to just buy a better extruder to begin with. I suspect the aluminum frame holding the bearing would constantly move the tube. I'd also prefer to see the tube run the entire length to from pinch to tip, as doing it in pieces is likely to have problems with the steps along the way. The video also mentions the issue with retraction and not having the tube held solidly. Regardless, given the fact that I can't get good results out of the existing Bowden/hot end setup using hard PLA, I'm thinking that running a soft material through it successfully is a long way away. Beo
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