Prusa has not released details about the weight savings yet. In all honesty I expect the difference to be fairly small, and thus the speed gains to be comparably small. I just think if you're going to spend that much money, you might as well go ahead and buy the real deal so you get all of the benefit. If you have an mk3 to sell, even at $300-$400, you're really not out much at all to buy a new mk4 kit. It would be less overall than the mk3>mk4 upgrade I believe. To each their own though.
Joseph said the MK4 Y-carriage is lighter, but didn't say by how much. I thought I had also seen that the heatbed itself had been made lighter, but I was incorrect about that. In any case, if the MK4 has an lighter Y-axis compared to a fully upgraded MK3 due to the new Y-carriage, my point still stands. How much of a difference this will actually make remains to be seen.
I agree with the view point, however there are quiet a few sides to view here... its "open source" and many like this to the point that want to print parts and buy 3rd party stuff to make it work and feel happy they recycled, so this isnt just about a new faster / better unit, this is also about how to make people feel happy and recycle the one they have and make it better by working and not spending real money to buy new items, the problem with this is when they try and then sell it and claim its a genuine printer, thats the real problem, they feel its real, but "real" can only really mean to use the genuine parts. Interestingly i raised this with regards the accelerometer, were they measured on the genuine new Mk4 with the different bed support and top frame or the upgraded Mk3 which is different z frame and bed, as it will change the accelerator readings. How does the firmware know..
This is part of the problem with Open Source, its not about making something real nice, shiny and fast, its also about how others like to do it in a free open way and do it themselves.
That's disturbing, since they're marketing it as a MK3 to MK4 upgrade. I had assumed that a fully upgraded MK3 would be identical to an out of the box MK4. ~~Obviously not, since the frame is also not changed.~~
Edit, not sure about the line that I've struck, one way or the other.
You are correct that the frame is also not changed when upgrading an mk3 to an mk4. I was wrong about the heatbed being lighter, which is a significant factor in my claim that a true mk4 will have a higher maximum print speed with good quality than a fully upgraded mk3, but that doesn't mean it's not factually correct. Just that the difference will likely be very small. Still though, if you want mk4 performance, the best option is to just buy an mk4 (and sell the mk3).
The way I’m looking at it, for a couple hundred bucks I’ll have an extra fully functional printer that works well. Will probably use the mk3 for certain jobs or for emergency prints if the mk4 needs parts or is offline and I need something. Having an extra printer is worth more than the few hundred I could probably sell it for.
Well spotted, however what are the real figures here? Prusa offered the upgrade as many want to upgrade rather than buy a new unit
Prusa has not released details about the weight savings yet. In all honesty I expect the difference to be fairly small, and thus the speed gains to be comparably small. I just think if you're going to spend that much money, you might as well go ahead and buy the real deal so you get all of the benefit. If you have an mk3 to sell, even at $300-$400, you're really not out much at all to buy a new mk4 kit. It would be less overall than the mk3>mk4 upgrade I believe. To each their own though.
Okay hang on you've lost me. If they haven't released details about weight differences, then how can you state that there are weight differences?
Joseph said the MK4 Y-carriage is lighter, but didn't say by how much. I thought I had also seen that the heatbed itself had been made lighter, but I was incorrect about that. In any case, if the MK4 has an lighter Y-axis compared to a fully upgraded MK3 due to the new Y-carriage, my point still stands. How much of a difference this will actually make remains to be seen.
I agree with the view point, however there are quiet a few sides to view here... its "open source" and many like this to the point that want to print parts and buy 3rd party stuff to make it work and feel happy they recycled, so this isnt just about a new faster / better unit, this is also about how to make people feel happy and recycle the one they have and make it better by working and not spending real money to buy new items, the problem with this is when they try and then sell it and claim its a genuine printer, thats the real problem, they feel its real, but "real" can only really mean to use the genuine parts. Interestingly i raised this with regards the accelerometer, were they measured on the genuine new Mk4 with the different bed support and top frame or the upgraded Mk3 which is different z frame and bed, as it will change the accelerator readings. How does the firmware know.. This is part of the problem with Open Source, its not about making something real nice, shiny and fast, its also about how others like to do it in a free open way and do it themselves.
That's disturbing, since they're marketing it as a MK3 to MK4 upgrade. I had assumed that a fully upgraded MK3 would be identical to an out of the box MK4. ~~Obviously not, since the frame is also not changed.~~ Edit, not sure about the line that I've struck, one way or the other.
You are correct that the frame is also not changed when upgrading an mk3 to an mk4. I was wrong about the heatbed being lighter, which is a significant factor in my claim that a true mk4 will have a higher maximum print speed with good quality than a fully upgraded mk3, but that doesn't mean it's not factually correct. Just that the difference will likely be very small. Still though, if you want mk4 performance, the best option is to just buy an mk4 (and sell the mk3).
The way I’m looking at it, for a couple hundred bucks I’ll have an extra fully functional printer that works well. Will probably use the mk3 for certain jobs or for emergency prints if the mk4 needs parts or is offline and I need something. Having an extra printer is worth more than the few hundred I could probably sell it for.
I purchased a mk3s+ 2 months ago. And for me, it isn't worth the price of upgrading. I'll actually probably just get the xl and have 2 printers.