What mod  

Better in what way?  What issues are you addressing?

Cheerio,

RE: What mod

Things that can make it better things people have found later and have come up with a solution to or things that generally make it better I have seen some but there all software with octoprint I don't think I have any problem hard to tell as new motor hasn't arrived yet 

RE: What mod

If you don't have a Pi, get one.  I initially installed a Pi with Octoprint mainly for ease in setting up a camera for remote monitoring.  Yeah, it works for that, but the amount of control and ease of use you get with it are game changing.  I wouldn't ever want to go back to using SD cards. 

The Bear frame mod is pretty cool.  It's unlikely you will notice any difference in your prints, but the frame and the printed parts are beefier in general, and the 2040 extrusion uprights make it much easier to mount accessories to your frame. The cable management is vastly improved over what Prusa's kit instructions show, as well.

In particular, the Bear frame simplifies mounting things like the reverse bowden setup I put on mine.  Now the filament spool hangs low on the side of the frame, and I don't need to have clear space over the printer for the standard type of spool mount.  On Printables you will find a lot of accessories for the Bear frame for things like upgraded power supplies; there are improved cases for your Einsy/mainboard, etc.  When I was building my Bear, Prusa didn't have the standard Delta power supply they use in stock as a spare part...  No problem, I bought a Meanwell LRS-350-24 off Amazon for a fraction of what the Delta would have cost, and found a case/mounts to use it with the Bear frame on Printables.  It's arguably a better power supply, and I saved some money.

I like the Bear Exxa too, which is an alternate/improved X-axis and extruder, although it has one big downside.  This is a separate mod from the Bear frame, and can be used with either the Bear frame or the standard Prusa frame (although they are commonly seen together).  It improves the way the linear bearings for the Z are held, allows for length adjustment of the X-rods, vastly improves the adjustment of the X belt tension, and mounts the part cooling fan vertically rather than at an angle (which will help the bearings live longer).  The big downside is the nozzle height is different, so you have to use the Bear firmware at least for calibration, after which you can switch to the Prusa firmware.  The Bear firmware hasn't been kept up to date with the Prusa firmware, so it is a couple major revisions old at this point (it's on 3.10.x still).  The guy who was keeping it updated switched to Klipper for his own printers and hasn't gotten around to it as I understand things.  Also, there are mods to get a lot of the features of the Bear Exxa while retaining the Prusa extruder, so you don't need to worry about the firmware thing.

Not a modification, but I would find a way to hang one of these fire extinguishers over my printer:

https://www.amazon.com/gp/product/B0863BFNWB/

My printers sit on a workbench, with wall mounted steel cabinets overhead.  I have mounted one of these over each printer. 

If this is your first /only MK3 then I wouldn't add any mods.

The obvious ones are the MMU and a Pi.

I have tried both and removed them.  The MMU is fine for multicoloured objects but they never look as good as painted ones, it doesn't really do multi *material* (eg PETG case, PLA gearing, flex shock absorption and soluble seperation PIP mechanisms) and it wastes tons of filament on wipe towers.

The Pi worked well - but didn't do anything to improve print quality, useability or convenience (I work in the same room) and although timelapses are cool they aren't useful - whereas the same Pi running a NAS and (2d) print server is.

and most of the other mods address 'problems' that are fixable by properly setting up a vanilla MK3.

You *might* get some benefit from a higher capacity hotend or the LED mod to the filament sensor but anything else I would reserve for your second MK3.

Cheerio,

RE: What mod

Posted by: @netpackrat

If you don't have a Pi, get one.  I initially installed a Pi with Octoprint mainly for ease in setting up a camera for remote monitoring.  Yeah, it works for that, but the amount of control and ease of use you get with it are game changing.  I wouldn't ever want to go back to using SD cards. 

The Bear frame mod is pretty cool.  It's unlikely you will notice any difference in your prints, but the frame and the printed parts are beefier in general, and the 2040 extrusion uprights make it much easier to mount accessories to your frame. The cable management is vastly improved over what Prusa's kit instructions show, as well.

In particular, the Bear frame simplifies mounting things like the reverse bowden setup I put on mine.  Now the filament spool hangs low on the side of the frame, and I don't need to have clear space over the printer for the standard type of spool mount.  On Printables you will find a lot of accessories for the Bear frame for things like upgraded power supplies; there are improved cases for your Einsy/mainboard, etc.  When I was building my Bear, Prusa didn't have the standard Delta power supply they use in stock as a spare part...  No problem, I bought a Meanwell LRS-350-24 off Amazon for a fraction of what the Delta would have cost, and found a case/mounts to use it with the Bear frame on Printables.  It's arguably a better power supply, and I saved some money.

I like the Bear Exxa too, which is an alternate/improved X-axis and extruder, although it has one big downside.  This is a separate mod from the Bear frame, and can be used with either the Bear frame or the standard Prusa frame (although they are commonly seen together).  It improves the way the linear bearings for the Z are held, allows for length adjustment of the X-rods, vastly improves the adjustment of the X belt tension, and mounts the part cooling fan vertically rather than at an angle (which will help the bearings live longer).  The big downside is the nozzle height is different, so you have to use the Bear firmware at least for calibration, after which you can switch to the Prusa firmware.  The Bear firmware hasn't been kept up to date with the Prusa firmware, so it is a couple major revisions old at this point (it's on 3.10.x still).  The guy who was keeping it updated switched to Klipper for his own printers and hasn't gotten around to it as I understand things.  Also, there are mods to get a lot of the features of the Bear Exxa while retaining the Prusa extruder, so you don't need to worry about the firmware thing.

Not a modification, but I would find a way to hang one of these fire extinguishers over my printer:

https://www.amazon.com/gp/product/B0863BFNWB/

My printers sit on a workbench, with wall mounted steel cabinets overhead.  I have mounted one of these over each printer. 

Hi there thanks for reply to start with I would absolutely love a raspberry pi but they are very expensive over here and caRnt really afford one and I have looked at bear upgrade but caRnt get over here so that's probably out and most likely it's expensive your reply is much appreciated but I'm looking more like 30 to 40 nz dollar upgrade 

RE: What mod

I didn't buy the Bear upgrade kit because the Bear I built from scratch has a non-standard Z height, so I bought some 1m long 2040 extrusions and cut them to length myself, bought standard hardware from Amazon, and of course all the plastic parts I printed on my stock Prusa.  Now I went kind of overboard with my extrusions because I have a milling machine with a DRO, but if I hadn't then a good stationary belt sander that's been squared up well would work fine for trimming to length.  The biggest issue is to make sure you have compatible T-nuts...  The Bear printed parts are designed for the special Bear T-nuts that come in the kits, and I think the best substitutes are probably the roll-in nuts that the Voron design group specifies for their printers.  It's good if you can buy the official kit because I think Greg Saunier (Bear designer) gets a cut of that, but if you can't get it where you are, or if like me you are building something non-standard, rolling your own is always an option.

On the other hand, there's a lot to be said for Diem's point of view.  You did, after all, buy the printer that "just works" so the actual need for most upgrades is arguable.

RE: What mod

Yes that is true just wondering if there is any little mods to do will be adding led strip second hand prusa offen poping up if prusa don't release mk4 the will get another mk3 and I probably will never get mmu after all bad review I have heard 

RE: What mod

Yes that is true just wondering if there is any little mods to do will be adding led strip second hand prusa offen poping up if prusa don't release mk4 the will get another mk3 and I probably will never get mmu after all bad review I have heard 

If you are looking for some lighting, this light bar was an easy addition.

https://www.printables.com/model/4566-single-led-light-bar-prusa-i3-mk2mk3

RE: What mod

Posted by: @jimb

Yes that is true just wondering if there is any little mods to do will be adding led strip second hand prusa offen poping up if prusa don't release mk4 the will get another mk3 and I probably will never get mmu after all bad review I have heard 

If you are looking for some lighting, this light bar was an easy addition.

https://www.printables.com/model/4566-single-led-light-bar-prusa-i3-mk2mk3

Thanks yes this does look good

Will add this