Arcol.hu hotend v4.1.1.
History
For previous announcement please read here:
http://blog.arcol.hu/?p=1939
The v4.1.1 version
Im really proud to announce arcol.hu hotend v4.1.1:
In a nutshell:
- v4.1. - aluminium mounting plate (that also means integrated setscrew in the heatsink)
- v4.1.1 - firesleeve
Aluminium mounting plate (v4.1.)
I replaced the wood mounting plate with an aluminium one.
Just to recall here is how the v4.0.5 looked like:
Here is the v4.1:
I also added an M3 setscrew, to fix the heatsink to the mounting plate
(prevent rotating the whole hotend at high speed).
Also here is how the hotend looks after 6 months of printing:
So the firecement is quite good solution, once it is applied.
Firesleeve added (v4.1.1)
To prevent skin burn, protect heater block against fan blow, and last but not least looks awesome:
Machine compatibility
This hotend is designed for reprap machines (or compatible).
However I had success reports from customers using in 24VDC system, like R2C2 electronics (you need different resistor, so definietly say it before purchase).
I would be really interested how others have mounted or adapted this hotend for their machine,
like makerbot.com or ultimaker.com.
If you happen to have a machine like the above, and you want assistance,
just drop me an email through preorder(at-arcoldothu.
Go grab one:
http://shop.arcol.hu/item/arcol-hu-hot-end-v4-unassembled-05
http://shop.arcol.hu/item/m8nutm3
—-
I closed down the commenting on this webpage due to the enormous number of penis enlargement suggestions.
If you have any thoughts to share about this article, please discuss it on arcol.hu's mailing list,
in this thread.
Arcol Hyena v1.1
Available at: http://shop.arcol.hu/item/hyena
History (v1.0)
For previous v1.0 announcement, read here:
http://blog.arcol.hu/?p=1920
and here:
http://www.thingiverse.com/thing:22369
V1.1 update
This is a minor, but really handy upgrade to hyena.
At one end it has 6mm flats for wrenches. So no more pliers to holding while putting the big gear onto the shaft.
This is how it should be mounted (flat end is the opposite one from big gear):
Here is a closeup of the two flat sides:
Here is how you should put the big gear onto the hyena:
Also here it is mounted on the extruder pusher:
(Note the M8 nut with M3 grubscrew! It is *really* useful)
Hyena: http://shop.arcol.hu/item/hyena
M8 nut with M3 grubscrew: http://shop.arcol.hu/item/m8nutm3
—-
I closed down the commenting on this webpage due to the enormous number of penis enlargement suggestions.
If you have any thoughts to share about this article, please discuss it on arcol.hu's mailing list,
in this thread.
Arcol.hu hotend v4.0.5
Arcol.hu v4.0 hot-end for 3.0mm filament (works also for 1.75mm filament too).
It has been a long time since I announced v3.0.
The new features:
- - Hot-zone is completely metal.
- - high temp extrusion should be possible, like pp, hdpe, plexi, polycarbonate, nylon (hopefully, this will be confirmed within a month)
- - shorter, more compact, a comparison photo between v3.0 and v4.0:
- - easier to assemble
- - reworked nozzle
- - laping for wrenches on nozzle, on stainless steel, heatsink
- - built for easy maintenance
- - self cleaning (you can remove the hardened plastic using two wrenches:)
- - built with dual extruder in mind
- - mounting compatibility for the average/stock reprap hotends
- - 100k thermistor (which seems to be a more common preference)
For assembly instructions please read here:
http://wiki.arcol.hu/arcol-hu-hot-end-v4-assembly
Regressions/future adaptations:
Dropped compatibility for Rapman, Makerbot. A new mounting needs to be designed for these machines.
For rapman a 200k thermistor also needs to be sourced to be electrically compatible.
Hobbed bar, hyena v1.0
This is my take of a new hobbed bolt replacement 
I call it the hyena, because hyenas have the strongest jaw of all mammals.
All teeth are cut individually:
Here is a comparison photo with one of my hobbed bolts:
The brass one is the new version:)
You mount it with a M8 nylock nut, so the width of your extruder does not matter.
Key advantage over the old version
- It's machined from straight, round brass stock. Regular bolts often have large tolerances and are not entirely straight. The hyena is guaranteed to be straight.
- Each tooth is individually machines, so there is no "orphan tooth". An orphan tooth is an incompletely cut tooth that occurs during hobbed bolt production with a tap, because the teeth of the tap do not match the diameter of the bolt while cutting. This is a problems because it's the spot where filament begins to slip. It tends to bite a small piece of plastic off the filament as it does not reach deep enough to grip. The next (normal) tooth continues eating into the filament, resulting a complete filament strip, and no printing. The hyena prevents this by making sure every tooth grips by the same amount.
Installing on a Wade style extruder
Some pictures, from the top:
Also when opened (please note the washers around the bearings!):
(Also take note the really useful and special M8 nut. It will be the subject of an another announcement:)
Im a technical guy, any drawings?
Here it is:
Guest article: Tiny’s first experience with Arcol.hu Hotend v3.0
It was announced as "really big", but is the Arcol.hu Hot-end v3.0 is that great?
Blender broke – Epilogue
My article titled "Blender broke" drew more media attention, than anything I've written lately. This is strange, as much cooler things have been happening around me:) Many sites picked it up.
I later read on a forum (I've forgotten which one), that the printed replacement part will break as it could not possibly be as strong as the original one. That did had some truth to it...
Arcol.hu Hotend v3.0
This is a really big announcement.:-) The new hot-end has been born, and rocks!
Arcol.hu hotend prototype one
I was quite excited about my new prototype. Interested in my findings?
Keep reading.
