Duet Generation 3 upgrade part 4 (and post TCT show)

This is just a quick update on the current state of play. Despite all our best efforts, the Duet guys didn’t quite get all of the outstanding issues resolved with the prototype expansion board firmware in time for the TCT show. So we had to run with what we had. I wasn’t able to successfully […]

Duet Generation 3 upgrade and TCT show 2019 part3

Captains log, StarDate 3rd September 2019. Things are hotting up and getting quite frantic so this will have to be very quick post. The main board arrived last Monday (26th August) and I’ve got it wired up. For now, due to one or two unfinished firmware issues, the Z probe has to be connected to […]

Duet Generation 3 upgrade and TCT show part 2.

Following on from a previous post, I’ve made further progress on changing over to the new Duet Generation 3. Progress has been slow up until now because it have been waiting for the hardware to arrive. The expansion boards which are prototype boards, arrived on Monday 19th so I have now been able to fit […]

Mixing hot end extruder micro-stepping revisited

Note. This post is about extruder micro-stepping when using a mixing hot end. None of the findings would be applicable to non-mixing, single filament input hot ends. Introduction Some time ago I posted my thoughts on why I believed that 16x micro-stepping was not a good setting to use with a mixing hot end. The […]

Nozzle wiper/purge bucket/bed clamp upgrade.

Readers will know that I have a strip of silicone rubber running across the back of my printer which is used to wipe the nozzle. Beyond this silicone strip is a “bucket”, which isn’t really a bucket because it has no bottom. Here is a picture of how it was. The silicone strip is the […]

Wiring upgrade, Duet generation 3 and TCT show 2019

If you have read my recent post about upgrading my extruder carriage, you will know that I intend to upgrade my printer to Duet Generation 3 electronics. There are three reasons for this. Firstly, it will enable me to use 13 stepper drivers which I will need in order to use both the load balancing […]

6 Extruder carriage upgrade

Unlike the Z axis upgrade which was done mostly for aesthetic reasons, this is something that really needed doing for a number of reasons. Firstly, it had become a sorry state. Here is what I mean While doing some other work on the printer I managed to lean rather heavily on the cable chain which […]