tête chaude avec extrudeur embarqué dual drive

What will come in 2019…

It’s been a while since I posted on my blog, we were completely overloaded by the SpiderBot HT and ABSolute2 orders and we had to produce the machines. So I still haven’t had time to update the site.

So, just a few news before the Christmass holidays:

SpiderBot V4.0 HT

– The software that manages the infrared camera is now finished : it runs on a Raspberry Pi with touch screen or a standard screen, keyboard and mouse. It’s very simple, you just have to click on the video to instantly get the temperature of the clicked point (Spot temp)…

spiderbot ir01

– The tests of our new solid PEI bed are quite good, it resists extremely well to prints and, thanks to our treatment, does not bend under the effect of the extreme temperatures to which it is exposed. 
 spiderbot pei01

What will come in 2019 :

We will stop manufacturing the SpiderBot V3.0 soon and move to V4.0 quickly.
This completely new machine will benefit from the experience acquired with the SpiderBot 4.0 HT and ABSolute(s). 


Surely few people remember it, but we were the first in 2013 to produce a machine with a dual drive extruder, since many manufacturers have followed us, like for the PEI bed, the closed chamber, the heated chamber, the double tilting head… This V4.0 will be the most advanced SpiderBot we have ever produced, with unique features for a machine in this price range.

Print head :




– Completely new, ultra compact and lightweight head, the single extrusion head weight less than 200gr (ready to print, including dual drive extruder, hot end, heater cartridge…), mass of the double extrusion head ~ 280gr (including everything too)
– Single head or double head with liquid cooling and extruder “Direct Dual Drive” integrated in the head
(pictures of one of our prototype below)



– Bodies are in Polyamide PA12
– Dual drive with remote motor (inspired by flex3drive or Zesty Nimble), brass worm gears and nickel-plated hardened steel dual drive.

– Extruder motor deported in the lower area of the printer (and cooled by a fan) driving the extruder by a flexible shaft sheathed in a metal spiral
– All axes are in hardened steel mounted on sealed bearings 
– Head with integrated bed leveling probe operating at 80°C
– Distance between the drive gear and the hot zone of the head is 25mm (maybe the shortest of the market), allowing the printing of all materials including flexible materials.

– Standard E3D nozzles.
– Bronze heater block (370°C)
– Stainless steel or Titanium thermal breaks
– 24V cartridges and 500°C HT sensor
– Easy adjustment of extruder pressure by screw or knurled knob
– Interchangeable dual drive pressure springs
– Filament release/change by a simple lever
– Disassembly of the “active” part with one screw (access for cleaning or lubricating the gears)
– Complete disassembly of the head in less than 3 minutes
– Optimized design with a minimum number of parts.

Printing Chamber :

– Chamber heated and regulated up to 80°C
– New heaters 500W
– New Hi-temperature fans

Plus :

– Machine dimensions increased to Ø450 x 805mm
– Increased printing volume to Ø210 x 180mm
– Improved ventilation of the electronic area
– New PEI bed
– Self-calibration of the bed with the possibility of 3D mapping the bed and integrating the 3D mapping into the head movements (by bed type or before each print).
– Water pump 500l/h
– New enclosure
– New door
– …


The tests we have made with this head show that the retract parameter required into the slicer is 2.0 to 2.5mm, it is between a standard direct drive (e. g. type Dyze Design / Bondtech / E3D…) which requires a retract of about 0.8 / 1.5mm and a bowden which often requires 4.0 to 6.0mm depending on the length of the PTFE tube.

These heads combine the advantages of the direct drive and those of a bowden, they combine the precision of the direct drive and the flexibility of the bowden without having the disadvantages:

  • Filament being stripped if the head is too close to the bed (or the material too thick or something went wrong) in case of a direct drive head,
  • Impossibility to print flex for a bowden head,
  • etc…

If you have any questions, please do not hesitate to contact me : pboichut[at]qualup.com

Have a good Christmas and New Year’s Eve

(and promised, as soon as the V4.0 is stable, in 2019, we will redo the website…)