Has anyone copied the new SD4 extruder yet?

That does look like a pretty sweet design.  I am actually still using the stock hot end.  I know, shame on me.  Not to get off topic, but I really haven't had any problems with it.  But everyone loves their E3D's so it is on my list to do.  The stock hot end didn't do to well the time I attempted to print T-glase, though.

It looks like that is for the E3D V5, right?  I would have liked to pick up the V6, which probably won't fit because I read they have a different overall length, but if I can't find a super secure holder I will order a V5 instead.

I'm still interested in a printable version of the new SD3 hot end holder, though.

Edit: the 4-40 bolts are the long ones that secure the hot end mount with extruder motor to the carriage body right?  I have wanted to find a super long version of those so that I can thread it all the way thru the lawsy X-carriage and out the back to put a nut on it, but I have had no luck on McMaster.  Everything at home depot is also too thick or not long enough.  Any suggestions?

If you are having success with the stock hotend then you are one of the lucky few.
When I finished my E3D upgrade, I was blown away. Just for the all metal construction and location of the thermistor are reasons enough. I cleared 3 clogs in one day with my stock, and only had one clog with my E3D. Cleared it and never had another problem.
You are correct that v6 is shorter, so this design would not work unless you are good with Sketchup, convinced Boz to reowrk his design, or openly asked someone here if they would be willing to do so. I have the v5 and aside from the thermistor "anchor" design, I see no need to pick one up at this time. v5 works just fine.

I am actually tossing the last belt on right now as I finish the carriage upgrade. When you print the center top, the top (flat face) has two cavities. This is where you can drop in a M3 or 4-40 nut. The screw does not *have to* go all the way to the back like with the stock SD carriage. Since I couldn't find any M3 screws long enough, I found some 4-40s that went just a few hairs past the nut and into the other side a bit...this is already sturdier than the stock.

wardjr designed an MK5 for the v6 E3D...to my knowledge, it is the only SD extruder body that accepts the v6.

I just buy the 2 parts from solidoodle. Nice Aluminium parts for a very good price.
I grind up the Aluminium heat sink to fit it. Still working on the mounting part but i'm lazy so it's a slow process

Here is the pictures of the assembly so far.

Nope, just some cheap $45 shipped ebay aluminium extruder.
Bought one and it work like a champs, so i get the second one for this mod.

Very nice looking Pirvan.

I have no try mine yet but do worry about the spring tension. And wish there are a way to adjust it.

I'm mounting mine on the 0.9 degree motor so it a bit longer than the original so u have to mount the fan on the side.

The difference between v5 and v6 seems to be about 2.15mm
So the body will need to be reworked if there is not already that much of a gap between the bottm of the extruder body and the top of the heat sink.

I took a brief look thru your post history and did not see it, so if you could post the .stl for the blue one, that would be awesome.  I'm on the hunt for a very firm holding E3D V6 mount.  It doesn't sound like this will fit but I might give it a try and see if I can sand it to fit or something.  Thanks.

You mean E3D? Drawings are on E3D's website, publicly available.

I didn't want to hijack this thread completely, so for those interested in following the blue extruder I was showing, I started a new thread.

http://www.soliforum.com/topic/7038/sd3 … placement/

For the details, refer "Hacks & Mods"---"Acrylic extruder upgrade to aluminum"
From Macgyverx, I think you even don't need to make a new bridge, just make
A 2 mm thick alum. or printed plate with 4 holes( two for long screw mounting,
Two for mounting to motor). How simple it is!