9 suggestions for Original Prusa i3 MK4 ?
 
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edgarismaelei203
(@edgarismaelei203)
New Member
9 suggestions for Original Prusa i3 MK4 ?

I would say that probably everyone is posting topics about the MK4. Here I have some suggestions about the main features.

1. New display: the old ones on the MK3 is a pain in my opinion. You have this wheel and this reset button below it. My main complaint is the reset button. Sometimes when pressing the knob, the knob touches the reset, thus losing a 10 hour print whenever I press the knob. A touch screen is much better.

2. Better stepper drivers/cooling: my X, Y, Z motors are ok, but my extruder motor is boiling hot. Maybe next time use the TMC2209 drivers that can drive the motors much cooler. The hot motor contributes to heat in the bond tech gears.

3. Better raspberry pi connection: the current MK3 only supports connecting a pi zero, which does work, but it cannot provide enough processing power. I recommend having a mount for a larger raspberry pi and having a much more powerful voltage converter to power it. 

4. Steel sheet detection: Simply add an IR sensor to detect the steel sheet and determine its thickness, and adjust the Live Z accordingly.

5. Size: we all thought that the printers were just not big enough, maybe something like 400*400*450 will be more than enough. This also means that we could switch to a mains powered heat bed.

6. Bigger PSU: the current PSU only delivers 10A while the printer itself can spike up to 15A when printing and heating. Also add a fan to cool the PSU and the electronics.

7. Hotend/extruder: I know that the hotend is great, but it is absolutely massive in terms of its weight. It is also very wide. Maybe make a new version of the fan-shroud to enable non-planar printing. Same applies to the PINDA(make it retractable??).

8. Built-in Ethernet/WiFi/camera: Nothing is better than sending the print directly from the slicer and watch it print without the need of going anywhere.

9. Automatic nozzle cleaning: I tend to have the plastic ooze out of my nozzle when preheating and making a blob of plastic in my prints. Adding a brass brush to the end of the X axis will fix this problem. At the beginning of the print, the printer will rub the nozzle against the brush.

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Posted : 04/06/2020 12:57 pm
bobstro
(@bobstro)
Illustrious Member
RE: 9 suggestions for Original Prusa i3 MK4 ?
Posted by: @edgarismaelei203

1. New display: the old ones on the MK3 is a pain in my opinion. You have this wheel and this reset button below it. My main complaint is the reset button. Sometimes when pressing the knob, the knob touches the reset, thus losing a 10 hour print whenever I press the knob. A touch screen is much better.

FYI - If you print a larger knob, it will take extra effort to push the reset button.

Have you used a touch screen for an extended period? I had one on my Artillery Sidewinder and just recently replaced it with an LCD + knob combination. I find it much easier to spin up to larger values compared to repeatedly tapping the screen (with no tactile feedback). The touch screens also waste a lot of space having to ensure buttons are big enough to touch reliably. A touch screen or fancy display is fine, but I definitely don't want to give up a big knob!

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 04/06/2020 1:18 pm
CovertPluto3502
(@covertpluto3502-2)
Trusted Member
RE: 9 suggestions for Original Prusa i3 MK4 ?

Hey....did you just copy and paste my old post?

Posted : 07/06/2020 8:05 pm
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