Not at all. There is a lot to consider. The whole goal of this is just narrow down the path. The choices are near infinite. The more constraints, the easier choices /designs become. I have been in a bubble for nearly 9 years. So my opinions could very well suck. If you feel strongly about something, you have to push a bit or I will just keep going.
I will say I like something for a reason, if no one disagrees, we just keep going. If someone says we need a 120 tooth pulley will do some math and accounting to see if it is viable, what the tradeoffs are. On the flip side of that…If I have to do all that work I will just keep going on the path of least resistance. I am coming from this on path I know currently works very very well.
Always a trade-off. When we get into the CAD…this stacks up so stupid quick. One move of a screw means 120 other dimensions change. Belt her or there, flat or upright, M5 or M3…
Thanks for the explanation. I am with you. The only HUGE downside to panels is the printer gets extremely loud. Almost needs to be fully enclosed to keep some of the amplified sound out. I have one paneled printer and I can hear it through my walls and never know the other 5 are even moving. Barry has tried all sorts of dampening and I don’t think any works.
I have stereo damping feet on it, the rest of the panels resonate very loudly. I think Barry tried a tensioning system to change resonance and car deadening material and a lot of other things in the railcore group as well.
Damn is that why my V4 is my loudest printer??? And now I have it in this “chamber” its even louder it seems
I get that just don’t want to come off the wrong way either. I like being involved but don’t want to overstep.
I get this as well. Don’t make a suggestion and expect you to figure it all out. Except for cad, that’s all you big guy! LOL I tried to take that approach with moving the Z motors and the weight. The more weight we get off the bed the less we have to overcome with the spring/brake And 2.4lbs of stepper motors isn’t anything to brush off. And yes I still feel strongly about it. I get your constraints with your farm but we are only talking 42m here. That’s 1 5/8". If you are really that close on your farm in Z then maybe bring the Z on your printers down to 250mm? I know I’m pushing but its for a good reason to me. I’m not the only one to smoke a board from a bed drop. And Klipper isn’t the only thing that’s caused my bed to drop. I had plenty with marlin as well. I know you experienced guys don’t have issues with this except for power failure. But you want this opened up to the “noobies” aka me as well correct?
I get this as well. That is probably one of the top 3 reasons I’m not better at cad that I am. It frustrates me to no end having to change 10 things to make one thing work lol
We might still do this. When we get to the design side a bit more. We just decided 3 steppers so that decision comes later. I didn’t kill this one, just postponed it. I played a lot with this on the current build.
When we figure out if the brake works, gearing, or springs, then we can get into the Z design. Looking like we might start on XY before Z…Z is far easier but its location kinda depends on XY anyway. There will be a lot of back and forth.
Geez… I leave you guys for a few minutes to go do real work and I come back to 1000 more posts to catch up on. Just a few comments from the Peanut gallery.
The reason I built the MP3DPv4 was because it didn’t require a CNC to cut the panels and I didn’t have to have holes drilled perfectly to install the panels. I have the CNC, but it’s not really big enough for the printer I wanted to build.
Really? Mine is dead quiet. Can’t even hear it running when you’re standing in front of it.
I’m running at around 100-120mm/s on PLA and its not quiet at all. Almost sings a tune sometimes on a single part lol. I did post a video about one certain move that makes a hell of a racket but no one commented on it so its still a mystery as to why lol
If I could get accelerations up I have enough flow to go faster but any time I go up in accelerations I start skipping steps. Haven’t been able to figure out why yet
Mind sharing the STL? I have some TPU here I wouldn’t mind putting to use LOL. I did link a video that you can hear normal noise and the real lovely noise every once in a while
I saw the link to the video. I haven’t watched it yet. I do ‘personal’ stuff through VNC when at work, so no audio. I’ll watch it when I ‘stop working’ for the day and fire up the desktop.
Here’s the foot. It uses M6 hardware to thread onto the end of the extrusion.
Those plates are also open source so you can print them yourself if you want. Also, I watched a youtube on another 3d printed cnc and he made his own v-rails with a router. In my case the V versions were cheaper at zyltech.
I remember the first Repeat I built (the V3 maybe) where it was all panels and it was much louder. Wooden panels carry a lot of vibrations. Obviously different, more dense, materials will reduce sound and vibrations but then your cost goes up. I personally prefer extrusion frames where you have the option to add panels if you like. I does seem like overkill once its all put together though. But I still think an extrusion only build is nice.
Honestly I am for this. I am trying to catch up (you all have way more time than I do) and I keep seeing “(interpreted) Lets build a new voron 2.4”. Why reinvent the wheel?
I like the idea of adding a 4th z motor. And definitely a better way to mount the belts (Sorry Ryan). I think that square mounting surfaces for beds will make construction easier and the ability to use extrusions to build them.
Features are something that we could spend a long time (and will) talking about how to add them to the current build. I chose the V4 becasue it used WAY less parts than a Voron and I like the community also.
When I was deciding on a 325x325 bed size I was trying to combine my Napoleonian ambitions with widely available glass sizes and be as cheap as possible when it comes to aluminum sources (many companies have pre-cut sizes at cheaper prices than custom sizes. Also, 325x325 seemed a perfect fit for the table I have
I am ready to try one. This next build will be my “experimental”.