Do a binary subtract the MP3DP mount from the Voron toolhead. You want that distance minimal.
Edit to add- that is freaking cool!
Thanks! I went back and forth about using the mini stealthburner also but the whole purpose of this exercise for me is the filament sensors and tip cutter. The version of the CW2 I am using has filament sensors above the extruder and between the extruder and hotend. it is the Filametrix cutter.
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More importantly is how far off from the Stock V5? Otherwise your bed is going to need to get moved out and the torque you are putting on that bearing is much higher, I would expect much slow accels because of it.
To give you an idea that is the most important gap I try to minimize on the entire design.
Agreed. That dimension is stellar on the the V5 for sure, no disagreeing!
With that said, as far as the torque, the entire weight of the extruder is hanging off the front of the carriage on the V5. With the stealthburner most of its solid weight is the stepper that rides at the very back of the extruder section. On the actual Voron I think it ends up almost directly over the rail so that is where I am hoping to get to.
I figured that the bed will need to move and I am also concerned about the clearance in the front. I have an idea to cut the front of the front belt slot off completely and use the Voron mounts to capture the belt. I need to make some changes to the voron mounts and make a separate wedge piece to mount them as now they are slid on from the side.
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Soā¦ I measured(ish) with my calipers by eye and it looks like in its form shown above the nozzle is 27mm from the front of the lower carriage.
I have made some mods to the carriage that should move the nozzle 4(ish)mm closer to the existing face of the carriage (my mod deletes it). This will use the Voron carriage mounts to capture the front belt. pictures of the part in a couple hours!
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Ran into a small snag. Moving the mounts back caused it to hit the rail nut traps. started printing a new set right before leaving the house this morning that has a notch to clear.
This moved the nozzle towards the rail by the distance from the original lower front face to the back of the belt slot which I believe is around 6 mm? Correct me if I am wrong!
This coupled with the different weight centers of the Stealthburner should negate any torque issuesā¦
It should improve it, but the goal really is to have the hotend/nozzle as close to the linear rail as possible.
Your structure is plastic, so the lever arm you create with that long a reach has real negative impacts on the system, whether or not the stepper is centered over the rail.
Even if it was all metal, there would still be benefits from having the hotend/nozzle as close to the rail as is possible.
The closer it is, the less the nozzle can deviate from bearing slop.
This includes just the force of extruding plastic out of it pushing it up causing inconsistent layer thickness. Think of this like a little tiny rocket nozzle. Every layer is pushing up and the weight of the assembly is pushing down. Different extrusion rates equal different nozzle pressure. The close the nozzle is the better your layers will look.
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I actually think that the nozzle is at least 1mm closer to the rail than the stock H2 nozzle is based on the CAD.
I feel like I am stepping on toes trying to make this work. The ONLY reason is to get the filament sensors for the TradRack.
I think it looks great! I think the prevailing wisdom is to minimize the moment of the nozzle off the rail. if you are close, it will be fine. If it is way off from the h2v2, then it could cause problems listed above. But you wonāt know until you try.
I donāt think that at all. We WANT you to succeed.
Just giving technical advice to make it the best it can beā¦ nothing more than that.
Thereās always room to improve, the stock design packages a commercial extruder and is likewise less than optimal.
Well, I guess I need to either upgrade my V4 or build a new V5ā¦
What I am trying to say is that this version places the nozzle 1mm closer to the rail than the H2 on the V5. And that configuration does some amazing stuff.
Yes, indeed. And V5S+ could be better still if it were further optimized.
100% I am excited to see this happen. Especially with a filament changer!!
Fair enough!
I thought you were going to send me the file to try it on the v5
Hell yeah!!! I am watching with excitement as well! The Printer is somewhere that everyone expects a good bit of customization to take place and welcomes it. I think this is an awesome mod and if I cant figure out the cooling for my mod in progress I might jump on board with you lol. That is the only thing keeping me from upgrading my current V4 to V5. I want to run a different extruder/hotend that isnāt compatible with the standard core
Hoping to have it today. Need to make a small change to accomodate the second switch size and make sure my edit this morning clears the nut trap.
Okay. Sent the Zip to @orob with the files as they are now. It looks like the nozzle is 45mm from the center of the rail itself.
