Adrians geared extruder

I have an Adrian's on my Sells Mendel and find it a pain to get the filament in when I reach the end of roll or need to change colour.

Has anyone designed an hinged alternative that will fit on the same carriage? If not I will have to get my drawing hat on

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Experimenting in 3D in New Zealand

*bump*

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Experimenting in 3D in New Zealand

I believe the bolt spacing is the same for most extruders since they were made to fit on existing machines. This would mean that Gregs Hinged should fit. Just measure the space between the two bolts and then check if the hotend is centred or offset and compare it to Gregs.

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That was my understanding too but haven't had a chance to check it out yet, thinking of printing one to go on my printer

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Experimenting in 3D in New Zealand

You can mount a gregstruder on a sells x-carriage (I have mounted a regular wades on it, with the same spacing), but it will only mount at a 90 degree angle, which will limit your z and/or x print area significantly.

There are some adaptors out there, but if you are going to replace the extruder anyway, I recommend you also print an Open X carriage, or get some lm8uus and print one of the many prusa x carriages.

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-Nudel
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Hmm good idea about a Prusa carriage didn't think of that even have some bearings spare, although I might go with the Open X design. DOn't have a lot of spare cash right now so am going to keep with the longer hotend I am already using

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Experimenting in 3D in New Zealand

When my filament runs out or I need to change colour I just do the following.

1. Snip off the remaining filament just above the entrance hole.
2. Hold the new end of filament against the end of the old.
3. Do a 20mm filament extrude while pushing the new filament in behind the old.
4. Repeat.

Done...

I hope this helps

George

I do this too but it often slips off which is why I'm looking at a hinged extruder

gsport Wrote:
-------------------------------------------------------
> When my filament runs out or I need to change
> colour I just do the following.
>
> 1. Snip off the remaining filament just above the
> entrance hole.
> 2. Hold the new end of filament against the end of
> the old.
> 3. Do a 20mm filament extrude while pushing the
> new filament in behind the old.
> 4. Repeat.
>
> Done...
>
> I hope this helps
>
> George

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Experimenting in 3D in New Zealand

Why not just melt your new to the old with a lighter??

How tight do you have the nuts/springs? I can let mine fully run out and still just feed new stock in and have it catch. I have never yet had to open it up..

Though when I built mine I was shocked at the poor alignment of the hobbed section of the bolt with the entrance hole so spent a little time shimming the bolt to line it up, maybe this is the real problem?

George