Cover photo
Sanjay Mortimer
Attended Exeter School
Lives in Newcastle
643 followers|571,610 views


Awesome article about a CD player printed with an E3D Volcano, cutting printing time from 32 hours down to 6 hours.
Whether you like to listen to your favorite music on an old-school record player, an iPod, or a CD player, typically you would do so on a device that you purcha
Chengster N's profile photoDan Kondrick's profile photoNathan Walkner's profile photo
high end, but it looks like a fisher price toy from the 70s
Add a comment...

Sanjay Mortimer

Shared publicly  - 
Finally ready to announce this one. It's a low cost hotend aimed at newer users and those who don't have a huge budget to spend on their printer build.

I cringe so hard every time I watch this video. I hope it gives you guys a good laugh at our expense!

Too many people getting caught out with terrible ebay junk that just doesn't work. Hopefully this price point, with a proper hotend to go with it will help!
Brad Hopper's profile photoJos van der Plas's profile photoGreg Carron (pixeladdikt)'s profile photoAndre vossen's profile photo
Now i can actually buy a few and keep one spare :) without breaking my marriage :)
Add a comment...

Sanjay Mortimer

General discussion  - 
I HAVE 1.75mm PEEK FILAMENT TO PLAY WITH.  Time to rig up a thermocouple for 400C nozzle temperatures, the high power heated bed for 200C bed temps, and have a crack and printing this stuff.

Then I'm going to print myself a J-Head.

Avec +Joshua Rowley 
Mike Miller's profile photoMatthew Satterlee's profile photoBrook Drumm's profile photoJames Malenko's profile photo
not on the site yet?
Add a comment...

Sanjay Mortimer

General discussion  - 
Ok, Cyclops (and Chimera) Q&A time! I'm seeing quite a lot of questions, a few misconceptions and a whole bunch of cool suggestions and discussion.

First some reference material:

Secondly, lets tag in some relevant characters
+Joshua Rowley (Who is actually the primary designer of this whole setup)

+Whosa whatsis +ThantiK +Thomas Sanladerer +Camerin hahn +Nils Hitze +Jelle Boomstra +Laird Popkin +Mark Moissette 

To be clear from the outset: Cyclops is not a mixing hotend
Yes, two materials are extruded from a single nozzle, and yes both materials can be extruded at the same time. However the primary application here is to print each material in turn one after another, and not so much about combining the two materials. (Nothing stopping you doing so if you want however).

Polymers by their very nature flow in an extremely laminar fashion. This means that if you extrude a black filament and a white filament into a single nozzle then you will receive extrudate that is black on one side and white on the other. You will not get grey. Cyclops does not have any mechanism or facility to take these two discrete streams of molten polymer and agitate them in any way to form a homogeneous mixture.

Although Cyclops is not a mixing hotend, it is a spin-off from a bunch of colour mixing experiments where we found somewhat accidentally that you could switch colours extremely quickly with certain melt zone geometry.

The switching is not done with a "Y" type affair where you pull out one filament back beyond a junction and then push down a second in it's place. The "Y" approach is fairly neat and simple, but suffers from globs and blobs left in the "Y" areas that can jam things up, as well as requiring large amounts of purging and some colour bleeding from leftover plastic intermittently contaminating the current plastic.

Cyclops does all switching in the molten fluid state and this allows for really really quick switching. I'm hesitant to give out hard numbers here, but essentially the required prime tower size is so small that we have to artificially make it larger because otherwise it would be too thin to adhere well to the bed. Additionally there is extremely little to no colour bleed and you get very pure output. Even with extremely strong colours such as black and white.

We played with a whole bunch of cool little ideas like passive ball bearing shuttle valves, but ultimately found that simpler was better and there was little advantage to being very fancy.

We're absolutely still working on mixing hotends. However it's a deceptively complex problem. We have really encouraging prototypes and some cracking performance. I'm pretty optimistic about it, but there are yet still a few unsolved problems.

Any other questions or speculation welcome. I'll do my best to keep up!
Stephen Baird's profile photoMathias Dietz's profile photoTaner Yonar's profile photoKyle Currier's profile photo
What is the upper diameter of the heat break? I see the stock ones don't have threads up there and I use an mBot Grid2 with a PEEK insulator design, so that really helps as the nozzle is held to the mount via a grub screw. I need it to be 7mm wide for it to work. Can you give some dimensions on just the heat break? I know inner with ptfe tube is 2mm, what it total outer diameter?
Add a comment...
E3D-Online is Hiring!

If you don't know who we are do take a look at our website: We're located in Monument Business Park, Chalgrove, Oxfordshire in the UK.

We manufacture and sell high quality HotEnds for RepRaps and other 3D printers, as well as filament and parts for printers. We're currently working on the next generation of 3D Printing extruders and technology.

We're currently looking for independent, ambitious individuals who want to work in a fast paced exciting young company with great future prospects and a fun working environment.

We're interested in people with all skill levels:

Working in our dispatch department with packing and shipping orders.

Assembling and running 3D RepRap printers to produce parts.

Skilled mechanical, electrical or software engineers. Particularly appealing are those with experience in control theory, and PCB design.

Also looking for those who are able to use machinery such as turning and milling operations. CNC and manual.

If you think you might be a good fit please do get in touch via the contact form on our website:
Mike Thornbury's profile photoD Rob's profile photoChris “Bigpaws” Chamberlain's profile photoIvor O'Shea's profile photo
Best of luck with the recruitment, and the new premises!
Add a comment...
The Cyclops - a new type of HotEnd from E3D. Sneak peek and some nice pictures.
Mauro Manco (Exilaus)'s profile photoNuker Bot (NukerBot 3D Printing)'s profile photoBrad Hopper's profile photo陳佑任's profile photo
What about the moving retraction ? 
Add a comment...
Carlton Dodd's profile photoUltimaker's profile photoJeff DeMaagd's profile photoBrian Bland's profile photo
It will come from a supplier in the US. Will make it easier and cheaper for people in the US to get than getting it straight from Ultimaker.
Add a comment...

Sanjay Mortimer

General discussion  - 
Just got some of the lovely Taulman 910 in the door. Really very impressed! Only got a few small test prints done, but the layer adhesion is as exceptional as bridge or 645, however the stiffness is way way higher. My main gripe with 645/bridge was that despite their superbly high tensile strength and layer adhesion they were not particularly stiff.

910 seems to have that solved, and I think it's something I'll find myself printing quite a bit of!

We have it in stock now at E3D for immediate dispatch, and I expect it will become available from most taulman stockists shortly.
Mike Kelly's profile photoJames Rivera's profile photoDenis Seguin's profile photoSanjay Mortimer's profile photo
+Denis Seguin We're just using UHU Stic branded glue stick. Workings exceptionally well without any warping issues on a 100C bed.
Add a comment...

Sanjay Mortimer

General discussion  - 
An interesting and more in depth look at the output from this machine. It does look as if they are getting some serious strength boosts.
At the surface, the products made with a MarkForged Mark One printer don't look like they'd be very strong. Printed in a crude-looking white and beige..
Brad Smith's profile photoBrad Hopper's profile photoMatthew Satterlee's profile photoDaniel O'Connor's profile photo
Seen it in the wild a couple of times, their new software is very nice all in Chrome it automatically generates the optimum position of the fiber but, say you decide that your part requires only a little fiber adding to one zone you can go back and adjust. Spoke to Greg Mark at CES and his background is interesting in that he came to the idea through necessity rather than inventing a tech and hoping for an application. Here's a little video we did with him >
Add a comment...
Sad to have learned +Ezra Zygmuntowicz​ has passed away. Farewell old friend. I remember when we both released our all metal hotends (E3D-v4 and TrinityLabs MetalMagma) on the same day. We were competitors but I always enjoyed our amicable debates and conversations on IRC. Cheers to a fellow hotend developer.
Brook Drumm's profile photoTerje Moe's profile photoJames Rivera's profile photoTerence Tam's profile photo
Oh, $#@%. I"m so sorry to hear this.  We only met once, I tried to help him get his TrinityLabs stuff onto Amazon.  Great guy, he'd be missed.
Add a comment...

Sanjay Mortimer

General discussion  - 
Have just gotten our bulk order of Tritan in from Taulman and up on our site. This is, for me, one of the most exciting materials of 2014. Mechanically nearly as strong and tough as polycarbonate, but an order of magnitude easier to print.

Also have PCTPE in stock, along with all the other standard Taulman goodness.

I really need to do a blog post on some of the newer more interesting materials we've got at E3D now. If anyone has any smart ideas for demo prints or materials they'd like to know more about do let me know. We're trying to build up a range of exceptionally cool materials and so far it's going well.

Are people interested in sample packs of cool materials? Like our Top-5 Engineering plastics, 20m each? Top 5 Artsy Fartsy Colour Changing/Wood-filled etc?

We wanted to be able to do everything by the meter, but it was too labour intensive. We do now have a machine to cut us pre-defined lengths of filament though, so keen to do samples etc.
Brandon Satterfield's profile photoDeven Garner's profile photoTim Elmore's profile photo
Ah gotcha, especially on the sample pack front. You might want to check out PrintedSolid (, they have quite a bit of filament. The owner is a great guy, he'd probably have no problem putting together a sample pack.
Add a comment...

Sanjay Mortimer

General discussion  - 
So this would appear to be a very cheap laser sintering metal printer on kickstarter.

No doubt its quite an early stage machine with lots of work to be done before we're rivalling renishaw and EOS in our garages, but I think this deserves some attention.
Aurora Labs would like to introduce the world's first affordable 3D metal printer!
ThantiK's profile photoNick Parker's profile photoJeff DeMaagd's profile photoTim Elmore's profile photo
+Nick Parker SLS isn't that bad. DMLS is insane.
Add a comment...
  • Student, present
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
  • Exeter School
Basic Information