CAD Modelling - Stealthburner foundation

[Nybble]

Is there a foundation drawing anywhere that is Fusion 360 based.

I need to build a new hotend / extruder combination, I always model my systems in Fusion both for assembly and motion.

I have a 'CoreXY' that started life as a Rat Rig but it was never built as such. I think the picture below offers some idea.


There are three MGN15 rails for Z, three for XY including one that carries the hotend / extruder which is currently an E3D Hemera. the bed is 'free floating' on a 3 point Kinematic / Maxwell mount, it is held in place only by its own weight. Control is done using a Duet3d 6HC, has been in service a couple of years.

I want to change from the Hemera to a Stealthburner architecture, I have in mind some parts - potentially a Galileo 2 but for sure I want to introduce a Voron Revo PZ - what I need is a foundation CAD drawing that I can use to create this 'idea' in a 3D model space within Fusion 360 - and be able to experiment with different extruder models before committing to a parts list. I am not really concerned with massive flow rates but I do care about accuracy, using high tempertature materials and minimising artefacts as I use this for creating scale model parts some of which are structural. The Hemera has been a problem from day one because of its mass that constrains acceleration, introduces artefacts and also its propensity to ooze and over extrude.

I have the Stealthburner files from the Github but they seem to have a fair number of features aimed at specific hardware, none of which are the architecture I am looking for, for sure they don't work with an MGN15 rail, the Galileo 2 nor the Voron Revo, but it is hard to understand which holes are intended for what.

I've read quite a bit about the Stealthburner and is why I am exploring it - I like the idea of being able to switch out the tool head without disturbing the rest for one. If I had a base drawing I could tailor it for the new parts by positioning them and then modelling around them - sure I could 100% design but then I couldn't seek off the shelf 'bits' ....

I'm OK with printing the parts but I would like to be able perhaps to get them pre made in a high temperature tolerant material - which may constrain me to things like the Bondtech Lite or Pro since they are already accounted for - but I cannot find a hot end support available for the Voron Revo or even identify how the Revo and Bondtech could be combined - which is why I want to model all this. The available CAD files from E3D and Bondtech aren't the best either.

Can anyone support with where to start ?

 

[Sanity Agathion]

Hello, welcome. Stealthburner is a toolhead for VORON printers, it makes sense that it contains parts and mounts compatible with VORON ecosystem. If you need to port it to another platform (common are Enders for example), you need to make your own mount. Same with additional hotends and extruders. Fortunately community created rather vast amount of modifications to support their desired setup.
Stealthburner uses its own extruder - Clockwork 2. Since it's a monolithic toolhead, compatibility with other extruders may be limited. You may find usermods somewhere on Printables or people's Githubs with LGX Lite or Orbiter 2 support, but there may be other caveats with that setup, like no SB-compatible toolhead support, limited support for chains or umbilical, the likes.

Galileo 2 is a drop-in replacement for Clockwork 2. It can be found in Galileo 2 repository. https://github.com/JaredC01/Galileo2/tree/main/galileo2_extruder
Revo PZ uses standard Revo VORON mount found in Stealthburner repository, it's the same form-factor https://github.com/VoronDesign/Voron-Stealthburner/tree/main

Originally, the designer of Stealthburner designed it in Autodesk Inventor, STEP files are available rather than Fusion 360.

If you desire more wider support for extruders, hotends as well as improved cooling, look into some of the modular 4010-based toolheads. Popular are Dragonburner, A4T or Anthead. But it's a rabbit hole on its own

 

[Nybble]

And making my own mount is exactly what I have in mind so all info assimilated and appreciated, I have imported some of the STEP files I found, where I'm struggling is working out which bits are to hold the extruder and hot end and which bits are the mount - since it is only the mount that I need to adapt to an MGN15 rail saddle.

I will have another play with the info provided, I don't mind feeding back to the community once I have a functional solution, though I will test it for real before I claim it is functional.

So far my challenge has been the direction taken by the FDM suppliers, many of the go to suppliers really don't cater for the scratch builder anymore and have forgotten where they came from, instead they focus on those using off the shelf printers and supporting upgrades to those - extruders are a nightmare - I have found the quality of CAD drawings provided to be inadequate for modelling solutions, I guess because people consume the work and then compete without making any of the investment in time or effort. I could make accurate models but would need to buy the part to do so (measuring etc).

I really like the planetary extruder system on my Prusa Mk4S - it is a small footprint high flow that I've had few issues with, it ain't perfect but it isn't the worst I've used.

 

[Sanity Agathion]

Well you need your own X carriage essentially, to make it compatible with MGN15.

 

[Nybble]

Yes I know this, and to model said mount for the MGN15 I need the relevant drawings. I will position those drawings where I need them to be and then model the mount.