E3D V6 Threaded Heatsink in beta
E3D is offering a new heatsink design based on a threaded rather than grooved mount. This addresses some of the concerns regarding mount stability that I've seen raised here. I know some smart folks here regularly do their own extruder mounts. Anybody incorporating this approach to mounting?
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: E3D V6 Threaded Heatsink in beta
Wow, that is a great product. I expect your wait will not be long.
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Chuck H
3D Printer Review Blog
RE: E3D V6 Threaded Heatsink in beta
Are there any CAD or dimensional drawings available? Otherwise, one must buy a unit to design for E3D's benefit. It's not a dear cost, just something that makes one feel used.
RE: E3D V6 Threaded Heatsink in beta
Might it not be just as easy to drill and pin the groove from the top of the existing heatsink then print the existing heatsink holder part with a notch the pin would sit in and prevent the heatsink rotating ?
I'm sure some of that brass rod used for pushing stuck filament through the inside of the extruder would be ideal and the hole could be very easily drilled with a dremel type tool.
I can see a printable jig for positioning being made here 😀
(I wonder if a single titanium tube from the heatsink bottom fins and into the heater block would be enough to prevent it turning when the nozzle is swapped)
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: E3D V6 Threaded Heatsink in beta
This threaded mount doesn't lock it or the rest of the extruder from turning, just increases mounting force holding the heat sink in extruder. I'd be more excited if it solved the lack of rotational lock or improved heat break efficiency. Instead it solves a problem I do not have. My E3D clamps in pretty dang well.
RE: E3D V6 Threaded Heatsink in beta
A bit more reading reveals that it's been around for over a year, so perhaps not a successful beta. It seemed like a sensible approach, and I recall complaints about the hotend assembly being loose in the R3 extruder design when first released. As guy says, it may just be a fix for a problem most of us don't have.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: E3D V6 Threaded Heatsink in beta
i expect it was of interest to the non-Cartesian printer hot end folks
RE: E3D V6 Threaded Heatsink in beta
i expect it was of interest to the non-Cartesian printer hot end folks
Ah, the filamentone.com page does show it mounted on what looks like (to me at least) a delta board. Ah well, it showed up on my search of the E3D site and looked interesting.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: E3D V6 Threaded Heatsink in beta
Rotational issue - and why E3D isn't solving it soon.
When you have multiple threaded components, the "tight" state of each thread becomes a factor in final align of any parts that need alignment, like the rotation of the heater block as used in the MK3 design.
If the final angle of the heater block were of no concern, the part is easy and inexpensive to make. If you need fixed angles at each finished thread, costs just multiplied a hundred fold. If you need precise fixed angles, the cost just multiplied another hundred fold.
RE: E3D V6 Threaded Heatsink in beta
Looks like the design lives on in the Duet product line. Some mentions about rotation concerns in the comments, but no specific answers. They do seem to work well in that application, but use with direct drive apparently complicates things. I hate pages that describe "new" products without a date.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: E3D V6 Threaded Heatsink in beta
Aha, I understand what you mean Tim.
So really the clamping of the heatsink is the crucial factor, to make it tight enough to hold securely so that it can't rotate during normal nozzle changes.
Skelestruder is good, but it could do with better clamping of the heatsink on mine, I will look at strengthening the parts which clamp using modifiers on JLTX's design and re-print it and see if I can get mine to clamp better.
I'm lucky that I have a second heatsink which I am assembling with the titanium heat break and copper heater block so I can print and test new parts without having to strip down my existing hot end.
Every day's a school day! - Thanks. 😀
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: E3D V6 Threaded Heatsink in beta
Uh. that's not what I thought Tim meant about multiple rotational joints. Machining the E3D to reach full torque at a precise angular position would require fabrication precision beyond that which is practical. The E3D has rotation joints between...
groove mount / heat sink/ heat break / heater block / nozzle.
Getting all those to precisely reach final torque at same total rotational angle is damned near impossible. Getting just the groove mount to not rotate fixes nothing at the other rotation joints.
There needs to be a separate mechanical "index" mechanism to lock all those rotation joints against spinning. Only then will a one hand nozzle change be possible. Off hand, this could be interference screws or a pin(s) going down through all the elements to lock them against rotation.