Many answers from Jo himself  

Re: Many answers from Jo himself

... in what will be probably the week's most shared article in 3D printer groups 😈

Stuff that wasn't discussed/settled in the forums so far:

Rest of the information in the article should be already known to any active forum member 😀 a good and welcome article, I'd say.

Re: Many answers from Jo himself

... in what will be probably the week's most shared article in 3D printer groups 😈

Stuff that wasn't discussed/settled in the forums so far:

This too has been addressed, @JLTX modified the back cover to allow belt access and @matthew.h21 designed an X-Axis belt tensioner... https://shop.prusa3d.com/forum/original-prusa-i3-mk3-f30/x-axis-belt-tensioner-t12787.html

https://www.thingiverse.com/thing:2740715

[*]the Y axis spiral wrap can snag cables and they switched to a braided cable sleeve, together with the new bed holder; they're saying "The easiest remedy is to remove the spiral wrap and nylon filament from the heatbed wires, which completely prevents this from happening." ... so just let the cable bundle dangle around ? strange.

This one has me scratching my head... My unit is due in any day now and I'm wondering if it will come with a braided sleeve, if not should I purchase one or just leave the wires hang free. The build docs still show the spiral wrap...

Re: Many answers from Jo himself

This too has been addressed, @JLTX modified the back cover to allow belt access and @matthew.h21 designed an X-Axis belt tensioner... https://shop.prusa3d.com/forum/original-prusa-i3-mk3-f30/x-axis-belt-tensioner-t12787.html#p57562

I know that, but they're unofficial mods; Prusa acknowledging this means they'll be released in their Github/printed parts archive/streamlined into the official prints included with the printers. Will be nice to see how much did they borrow from JLTX's design 😆

Re: Many answers from Jo himself

This too has been addressed, @JLTX modified the back cover to allow belt access and @matthew.h21 designed an X-Axis belt tensioner... https://shop.prusa3d.com/forum/original-prusa-i3-mk3-f30/x-axis-belt-tensioner-t12787.html#p57562

I know that, but they're unofficial mods; Prusa acknowledging this means they'll be released in their Github/printed parts archive/streamlined into the official prints included with the printers. Will be nice to see how much did they borrow from JLTX's design 😆

It's early here, I guess I misinterpreted what you meant. Though I'm still unsure of what to do if my unit comes with the coiled cable wrap for the heatbed. I'd be inclined to get mesh wrap and would like to have it on hand if it didn't ship with it. Might as well do it right the first time around.

Re: Many answers from Jo himself

Somewhat surprised that there was no mention of filament sensors failing and heating up the extruder housing to PET-melting temperatures.

I have received the replacement filament sensor after mine went up in smoke, but I simply will not install it until I can be sure that it wont become a hazard again, hopefully via current-limiting firmware.

Re: Many answers from Jo himself

I do not get it: Should we remove the nylon filament and the cable wrap from the y axis cable? I printed out the new Y axis cable holder part - is this part not using the nylon filament also?

I wished the manual was updated to go with Josefs statements. Or that Josef could make his statements more clear - so that existing customers could take action to prevent damage to their cables.

When using braided cable sleeves - what length would be recommended and what size? Is the Extruder cable bundle not also in danger?

So many new questions:-)

Re: Many answers from Jo himself

Really happy to see this post addressing the larger issues and many of the smaller issues. Certainly helps settle me down, and somehow even more excited for my machine to ship!

Re: Many answers from Jo himself

Awesome to see that they're recommending the mesh wrap instead of the spiral wrap. I can't see why using one vs the other would cause issues but I was planning on replacing all of the spiral wrap with mesh wrap. It's easier to work with and it looks cleaner to my eye. Plus I have a ton of it laying around.

Re: Many answers from Jo himself

Awesome to see that they're recommending the mesh wrap instead of the spiral wrap. I can't see why using one vs the other would cause issues but I was planning on replacing all of the spiral wrap with mesh wrap. It's easier to work with and it looks cleaner to my eye. Plus I have a ton of it laying around.

Do you know what diameters are needed?

Re: Many answers from Jo himself

Awesome to see that they're recommending the mesh wrap instead of the spiral wrap. I can't see why using one vs the other would cause issues but I was planning on replacing all of the spiral wrap with mesh wrap. It's easier to work with and it looks cleaner to my eye. Plus I have a ton of it laying around.

Do you know what diameters are needed?

I don't have the exact measurements on hand but I'll find out for you.

Re: Many answers from Jo himself

Awesome to see that they're recommending the mesh wrap instead of the spiral wrap. I can't see why using one vs the other would cause issues but I was planning on replacing all of the spiral wrap with mesh wrap. It's easier to work with and it looks cleaner to my eye. Plus I have a ton of it laying around.

Do you know what diameters are needed?

I don't have the exact measurements on hand but I'll find out for you.

Mucho gracias! I'd just as soon buy the mesh wrap and build it with it as I'm not real keen on the coil wrap to begin with.

Re: Many answers from Jo himself

Mucho gracias! I'd just as soon buy the mesh wrap and build it with it as I'm not real keen on the coil wrap to begin with.

I only have them in American measurements but for the hotend wires it would take 1/2 in. coil wrap and 1/4 in. for the heatbed wires.

Re: Many answers from Jo himself

Is there a trick how to get all the cables and the connectors through the mesh tube?

And one has to use a heat shrink tube at the end of a mesh tub so it does not break loose/destroy itself, right?

Re: Many answers from Jo himself

It’s good to hear all of this. I don’t have Facebook so I can’t leave a comment on that article. Someone should ask the question when the “reworked X-carriage with belt holder system similar to the one on Y-axis and X-end-motor with the integrated belt tensioner.” Will start to be shipped with the printer? Mine is due end of Feb/early Mar. If I’m waiting that long I might as well wait a little longer for the updated parts.

This article only makes the wait harder!!

Re: Many answers from Jo himself

Mucho gracias! I'd just as soon buy the mesh wrap and build it with it as I'm not real keen on the coil wrap to begin with.

I only have them in American measurements but for the hotend wires it would take 1/2 in. coil wrap and 1/4 in. for the heatbed wires.

That's perfect though I was trained in metric the industry I'm in is heavily invested in USC so it's pretty much all I know right now...

Re: Many answers from Jo himself

Is there a trick how to get all the cables and the connectors through the mesh tube?

And one has to use a heat shrink tube at the end of a mesh tub so it does not break loose/destroy itself, right?

Nope, there's no trick. There's a slit in the middle that coils around its self to hold everything tightly. Just open it up with your hand and put it around the wires.

Re: Many answers from Jo himself

Nope, there's no trick. There's a slit in the middle that coils around its self to hold everything tightly. Just open it up with your hand and put it around the wires.

I don't think you're talking about the same thing here. The mesh braid I (and possibly others) know is a braided textile tube without any slits which expands when pulled over the wires, it looks like this:

Re: Many answers from Jo himself

Nope, there's no trick. There's a slit in the middle that coils around its self to hold everything tightly. Just open it up with your hand and put it around the wires.

I don't think you're talking about the same thing here. The mesh braid I (and possibly others) know is a braided textile tube without any slits which expands when pulled over the wires, it looks like this:

Thats what I assumed we were talking about.. And I have a load of this in different sizes in the garage.. Its grey, but it would do the job... you just have to find the right size so its wide enough to get cables through.. But it will 'shrink' back enough to hold the cables in a tight loom.

I am surprised that the coil wrap stuff isn't working out.. I have a printrbot and used coil wrap on all the looms and after 100s, if not 1000s of hours of printing, everything is still perfect.

Re: Many answers from Jo himself

Correct, that's my fault. I was talking about 1/2 in. wire loom with a slit in the middle.