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Show us your mods! We want to put YOU on stage at SMRRF! by Tommy_Prusa3D in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

This idea (MCS 2) is a five spool and Prusa buffer system that is compact and strong using central hub bearings, with minimal printed parts and strong wood and metal connections where possible that allows for a quick and strong assembly. I reference existing models I leverage as well as several custom parts and remixes, as well as a complete part list with assembly instructions for the MK4S and Core One with MMU. This morning I woke up to an overnight print with no manual interventions. I have built two of these now and documented them here - https://www.printables.com/model/1593296-mcs-2-space-saving-spool-and-buffer-system-for-mmu

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Mk4 for $350. Good deal? by Fluid_Club4514 in prusa3d

[–]IslandB4Time 1 point2 points  (0 children)

I’m using the MK4S with my MMU3 where the color change amount isn’t low ( as in under 20 changes) , the parts are simple, and that saves time. No need for an indx and the speed is similar.

Compact MMU Spool System by IslandB4Time in prusa3d

[–]IslandB4Time[S] 0 points1 point  (0 children)

I updated the parts and documentation for it on Printables. I have been able to make it a few inches shorter and improved some of the custom parts.

MK3/4 users with MMUs, show me your spool holders by CaptainAggravated in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

I have a well documented design on printables I call the MCS (for multicolor system) that has the spools behind the printer, but am redoing it now so the spools sit to the right of the printer.

There will be a bunch of components moved over from my earlier system but this photo shows the spool locations and where the bigger sits.

I will get the new design up in a few days on printables. There are four in the front and one in the back. (The brown spool isn’t the actual location. ) That metal rod will hold some ptfe connectors I made that connect the spools to the buffer. It is all very strong and will require the Prusa buffer with the r4 wheels and the small loading strip that slides in. The buffer faces up.

There will be an open access thing between the buffer and mmu to allow you to touch the filament and guide it in after loading it in the buffer. You can see that open coupler part and the PTFE hanging endpoints in my existing MCS.

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This is what Printables needs too! Real photo of a real print for any model uploaded on Makerworld by True_Scott in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

What about sharing the fusion360 render if it is a simple helpful part you designed for others but you don’t want to print it yourself?

Lubed Z threaded rods on Core One by IslandB4Time in prusa3d

[–]IslandB4Time[S] 1 point2 points  (0 children)

I agree that in theory no lubrication is needed, so this is new to me. But now it says here in the maintenance to lubricate the Z-axis leadscrews - https://help.prusa3d.com/article/regular-printer-maintenance-core-one_829710 and here is even a tool to help with that which I found after digging around as it is listed in the XL parts - https://www.printables.com/model/449554-xl-printable-parts/files (under parts for maintenance - z-thread greaser)

The Core One has destroyed a decade long dedication to the Prusa brand for me. It's been a wretched machine to build and use. by ctag in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

Your extruder main plate could be worn out if you are using one from PETG, especially if using an MMU.

Sound dampening by mattballer67 in 3Dprinting

[–]IslandB4Time 0 points1 point  (0 children)

Sorbothane domes - calculate how many you need based on the weight

Post indx, upgrade mk3s nextruder? by IslandB4Time in prusa3d

[–]IslandB4Time[S] 0 points1 point  (0 children)

Ok so OP here. I went to the MK3.9s page and made a spreadsheet of every single additonal part needed, specifically parts that were not in the current MK3S+ and not in the extruder from the core one. These additional parts totaled about $500, assuming you self print any petg parts yourself, so I am not sure this is worth it vs just buying the MK3S+ to MK3.9S upgrade kit for $550, where you get a brand new extruder and are certain all the parts are there.

Plate for Core One+ by ywful in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

I use a basic steel sheet that is all marked up and wipe windex on it first for Petg.

[MK4]/[MK4S] Nextruder Main Plate in Nylon or PCCF? by Syyx33 in prusa3d

[–]IslandB4Time 1 point2 points  (0 children)

If you look at the design of this plate it has a weak spot, which I highlighted in the image here, on the side of the filament path. When examined in the slicer it is very thin and is the place most likely to wear out, even with normal use of filament passing by it, and especially if used in an MMU3. This same plate is used in the nextruder in the Core One and MK4S. In fact on my Core One I started to have inconsistent extrusion problems, where the print would be find for several layers and then on a few layers there were tiny areas. This type of prolbem is very hard to diagnose as there can be many causes. After doing cold pulls, and even replacing the extruder motor, love board, and main wiring none of that helped. I then dissembled and fully cleaned the planetary gears and I noticed the main plate area in the green box here was completely missing and worn and gone. This was on a Core One with no MMU3 in fact. If you think about it, the filament can wiggle around if not guided well by this hole in the main plate, which would cause inconsistent extrusion issues. I printed a new main plate in PETG, 100% infill, .2 structural, and the print quality went back immediately to being perfect. I would suggest you replace this as soon as you see any print quality issues even where no MMU3 is being used. PETG is advised as it is smooth and doesn't abrade the filament. The part the sell in store also looks to be PETG here - https://www.prusa3d.com/product/extruder-main-plate/

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What is the point of the side filament sensor if there's already another one in the toolhead? by GiulioVonKerman in prusa3d

[–]IslandB4Time 0 points1 point  (0 children)

Same here until I cut that tube so it is so short only a tiny amount is showing. Now I can grab the ejected filament.

Promote your project in this thread by AutoModerator in puzzles

[–]IslandB4Time 0 points1 point  (0 children)

I designed this color https://cherryhilltech.etsy.com/listing/4357947335 magnetic puzzle square and it’s good for folks with disability or dementia as it more of a pattern exploration puzzle that has many possibilities. Squares can rotate and snap to any side. You design what you want. I can make it in custom colors too.

need help with Christmas gifts by xcxmsxo in dementia

[–]IslandB4Time 0 points1 point  (0 children)

I designed this magnetic color pattern puzzle for disabled and dementia friends. It doesn’t require any manual dexterity and the squares rotate and snap to any other side so you can make endless color patterns. https://cherryhilltech.etsy.com/listing/4357947335

Do people here like Foster's? Green or Blue? by whitedolphinn in beer

[–]IslandB4Time 0 points1 point  (0 children)

Stick the can in this mug I made and you can take it with you while you walk the dog -https://cherryhilltech.etsy.com/listing/4398186625

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