WEBVTT 00:00:01.020 --> 00:00:07.620 hi I'm Tynan and I'm here to talk about the prusa mark IV I have definitely been 00:00:05.700 --> 00:00:12.900 a fan of prusa in the past a lot of their printers and a lot of the experiences I've had with them have been 00:00:10.080 --> 00:00:19.020 generally quite positive and the fact that they're in almost entirely open 00:00:15.719 --> 00:00:21.480 source and allow users to hack it and 00:00:19.020 --> 00:00:24.960 upgrade it along the way is a big selling point that I generally have been 00:00:23.580 --> 00:00:28.500 quite a fan of as time has progressed there have been a 00:00:26.699 --> 00:00:32.040 couple other printer manufacturers in the market that have made things more 00:00:30.060 --> 00:00:36.120 difficult it looks like they sent us a couple of snacks 00:00:33.540 --> 00:00:40.320 in terms of other unboxing things a nice little handbook for anyone who needs a 00:00:38.460 --> 00:00:45.120 little bit more introduction power cable standard stuff but a whole bunch of 00:00:42.540 --> 00:00:47.879 replacement Beds which is quite nice because this is one of the most common 00:00:46.379 --> 00:00:50.579 consumables especially if you accidentally cut into it or something 00:00:49.500 --> 00:00:54.559 like that when you're trying to take a part off and a bunch of packing 00:00:55.579 --> 00:01:00.860 they do provide a box of filament which 00:00:58.620 --> 00:01:07.020 is always nice assorted accessories which we'll open up after this big box 00:01:03.180 --> 00:01:10.500 is out of here one piece yeah 00:01:07.020 --> 00:01:13.080 all right there be the printer one more 00:01:10.500 --> 00:01:17.280 little box to open up I have a suspicion yeah so this is a 00:01:15.600 --> 00:01:21.659 nozzle adapter which normally doesn't come with it this particular one has two 00:01:19.619 --> 00:01:25.860 sides so you can load multiple filaments at once if you want this is the pla 00:01:23.880 --> 00:01:28.740 prusa Galaxy black which is persiment they should have a profile for it when 00:01:27.360 --> 00:01:32.759 we get there so I haven't actually seen an improvement roll in a while but they 00:01:31.259 --> 00:01:35.759 have a little filament catch on the end inside of the Roll normally I see it 00:01:34.380 --> 00:01:41.280 like fed through holes or something like that they have a wi-fi system built in 00:01:38.880 --> 00:01:44.040 which is a notable Improvement in previous versions you've had to either 00:01:42.420 --> 00:01:47.820 attach a Raspberry Pi or some other single board computer or Wi-Fi adapter 00:01:46.079 --> 00:01:52.560 to be able to connect these wirelessly but that seems to be out of the box 00:01:50.340 --> 00:01:57.840 compatible now Yee there's two big upgrades that I'm aware of right now one 00:01:55.740 --> 00:02:01.560 of them is the extruder set itself they've replaced the existing two gear 00:01:59.700 --> 00:02:05.939 drive with one large gear and a couple of idlers that greatly increases the 00:02:03.540 --> 00:02:10.319 amount of grip that the extruder has on the filament and to compensate for that 00:02:08.700 --> 00:02:14.280 they have a planetary gear set that allows the stepper to operate well 00:02:12.000 --> 00:02:18.959 within its ideal range but still have the filament move at a reasonable Pace 00:02:16.319 --> 00:02:22.800 they have a force sensor integrated into the hot end so they can probe the bed 00:02:20.879 --> 00:02:26.580 and get the actual measurements rather than having to do manual bed leveling 00:02:24.480 --> 00:02:30.420 which is also a massive quality of life Improvement is anyone who's ever had to 00:02:28.080 --> 00:02:34.379 mess around with that knows it's an adventure in a lot of the upgrade 00:02:32.400 --> 00:02:38.819 kits you can get the printed Parts purchased as well but generally for any 00:02:36.660 --> 00:02:42.599 of these they suggest just printing your own upgrade Parts they'll provide you 00:02:40.379 --> 00:02:46.019 with the files and get you rolling to the point and also even on production 00:02:43.920 --> 00:02:51.959 printers they print a whole bunch of components including the screen cover a 00:02:48.840 --> 00:02:54.060 bunch of the other stepper mounts 00:02:51.959 --> 00:02:57.180 and some of the mounting components onto any of the hardware boxes and that is 00:02:55.860 --> 00:03:00.840 all of the hardware setup that we have to do before you get set up and start 00:02:58.980 --> 00:03:04.440 doing software but that'll come right after the segue to our sponsor thanks to 00:03:02.640 --> 00:03:10.319 Super Micro for sponsoring this video get ready for the 00:03:07.319 --> 00:03:12.780 super micros h13 generation servers 00:03:10.319 --> 00:03:19.379 they're powered by AMD's epic 9004 processors with up to a staggering 128 00:03:15.959 --> 00:03:21.000 cores and AMD 3D V cash these are 00:03:19.379 --> 00:03:24.480 designed to handle the most demanding workloads they offer unmatched 00:03:22.379 --> 00:03:28.560 scalability and memory expansion options allowing you to boost your productivity 00:03:26.099 --> 00:03:33.060 with the highest core count on a single processor and blazing fast performance 00:03:31.019 --> 00:03:36.599 for memory intensive tasks visit the link in the description for more 00:03:34.440 --> 00:03:41.400 information on super micro's AMD powered server Technologies today 00:03:38.819 --> 00:03:47.280 the build volume of this printer is 250 by 210 by 220 millimeters it's not the 00:03:45.060 --> 00:03:52.319 biggest build volume out there but it'll get most of what you need done 00:03:49.920 --> 00:03:55.620 and the self-test begins we will need your help with this test you'll be asked 00:03:53.819 --> 00:03:59.040 to tap the nozzle don't worry it's going to be cold and it gives me a nice little 00:03:57.540 --> 00:04:02.220 countdown and that's just detecting that the load 00:04:00.720 --> 00:04:06.120 cell is working properly now it's doing a z-axis calibration goes all the way to 00:04:04.260 --> 00:04:10.080 the top until it vibrates and then moves over to the side this is its initial 00:04:07.980 --> 00:04:13.560 self-test after it's built or taken out of the box to make sure that everything 00:04:11.819 --> 00:04:16.979 is attached properly and that it's detecting its ends this particular 00:04:15.180 --> 00:04:21.959 printer doesn't actually have limit switches on most of the axes I think any 00:04:19.560 --> 00:04:26.820 of the axes it detects feedback from the motors themselves they've been upgraded 00:04:23.520 --> 00:04:28.680 to avoid weird artifacting along z-axis 00:04:26.820 --> 00:04:31.259 okay so it's still going through tests and now it's actually starting to heat 00:04:29.940 --> 00:04:36.900 things up so no one's particular surprise prusa uses prusa slicer it's a 00:04:35.520 --> 00:04:41.220 great slicer and a lot of other companies actually make forks from prusa 00:04:39.300 --> 00:04:46.500 slicer to develop their own because they do a very good job it has all of your 00:04:44.460 --> 00:04:52.139 standard settings all the way down to 0.05 millimeter detail to 0.3 draft 00:04:49.620 --> 00:04:56.820 standard you can upload a whole bunch of different generic or persimmon specific 00:04:54.120 --> 00:05:01.860 or other manufacturer specific filaments into your presets and they also allow 00:04:58.979 --> 00:05:04.800 different profiles for your printers and different nozzle sizes we have a nice 00:05:03.300 --> 00:05:08.340 little Snorlax here that we're going to do our for our print while this is 00:05:06.660 --> 00:05:12.720 heating up there's a couple of things to talk about about the nozzle itself there 00:05:10.440 --> 00:05:17.220 is a quick swap nozzle with a couple of thumb screws inside the extruder so you 00:05:15.600 --> 00:05:21.840 can take it out and swap a new one in very very quickly compared to any others 00:05:19.440 --> 00:05:28.020 and also the nozzle and extruder section is fully metal with no PTFE pipe or PTFE 00:05:25.800 --> 00:05:31.740 tube which means the entire hot end can get up to 300 degrees Celsius which 00:05:30.120 --> 00:05:35.880 allows you to work with a lot more of the engineering style Plastics on this 00:05:34.199 --> 00:05:41.759 particular printer all right and now here is our full self-test result 00:05:38.940 --> 00:05:47.460 which looks like as one would hope everything passes happy printing thank 00:05:44.759 --> 00:05:52.380 you this is another nice improvement over the previous versions where you 00:05:49.560 --> 00:05:57.840 could only use SD cards to upload files you can now use USB drives and you can 00:05:54.780 --> 00:05:59.820 also hook up a micro USB to I believe 00:05:57.840 --> 00:06:05.060 their your laptop if you wanted to print directly from there 00:06:01.560 --> 00:06:05.060 it should detect it automatically 00:06:05.240 --> 00:06:11.940 lovely oh it does happen automatically that's quite nice 00:06:09.479 --> 00:06:15.539 slight caveat for this make sure that the setting of the 00:06:13.680 --> 00:06:19.440 plastic is correct for your nozzle temp or you're going to have a bad time so 00:06:17.340 --> 00:06:22.919 it'll pull it in automatically and then ask you hey what plastic did you just 00:06:21.000 --> 00:06:26.520 put in and then this is gonna these are going to be all of your presets for your 00:06:24.360 --> 00:06:31.460 different types of plastic so pla pet G ASA polycarb now that that's all set up 00:06:28.800 --> 00:06:35.400 we'll hit print and it's going to go if I recall 00:06:33.300 --> 00:06:39.900 correctly this does have its own first layer cowl built in where it'll probe 00:06:37.740 --> 00:06:44.699 the area that it's going to print in to get a good mesh map in case there's 00:06:42.600 --> 00:06:48.000 deviations down or up so it'll automatically compensate for that 00:06:46.259 --> 00:06:52.740 variation as it's printing its first layers it's good fun so this is a 45 minute one 00:06:51.419 --> 00:06:57.840 at this point it's going to be heating up the hot end 00:06:54.720 --> 00:06:59.039 and the bed and then once that gets to 00:06:57.840 --> 00:07:05.039 temperature it'll go now it's going to go through and do its 00:07:02.360 --> 00:07:07.560 self-test or first layer calibration it just triggered the load cell and I 00:07:06.419 --> 00:07:10.740 actually noticed that there was a little dot on the print bed right where it 00:07:09.780 --> 00:07:15.180 touches that's it detecting through the load 00:07:13.440 --> 00:07:20.940 cell where it is and now if I understand correctly it's 00:07:18.000 --> 00:07:25.199 going to go through and do a grid in the area that it's printing and one nice 00:07:23.039 --> 00:07:29.699 thing about this is it only does the area where it's actually printing so it 00:07:27.539 --> 00:07:34.139 doesn't always do the entire bed which can be a pretty substantial Time Savings 00:07:31.979 --> 00:07:37.319 one of the things that it did here was it reduced the hot end temperature to 00:07:36.060 --> 00:07:41.280 the point where the plastic would still be solid but malleable which means you 00:07:39.240 --> 00:07:45.599 don't get those little dots left on the print bed as you're probing it 00:07:43.860 --> 00:07:49.860 and now it's increasing the temperature up again to actually start the print and 00:07:47.940 --> 00:07:54.000 the way it goes some of the other things I've seen floating around with the four 00:07:51.780 --> 00:07:57.840 cell and this setup in general some people have suspected that they may 00:07:55.319 --> 00:08:01.440 release active Force compensation from the plastic coming out of the nozzle to 00:08:00.120 --> 00:08:06.479 detect if there's any variations additionally though never buy something 00:08:04.259 --> 00:08:10.080 for a feature that might come I am pretty inclined to believe that any of 00:08:08.280 --> 00:08:16.080 the features that could be implemented with this Hardware but isn't yet most 00:08:12.900 --> 00:08:17.340 likely will over time or someone on the 00:08:16.080 --> 00:08:23.400 internet might just figure it out and post it to everyone and if you wanted to use it you can though be aware of using 00:08:21.780 --> 00:08:27.539 other people's code without vetting it first that is an extremely flat first 00:08:25.860 --> 00:08:31.139 layer a lot of the times when you're doing your first layer if you over 00:08:28.979 --> 00:08:35.940 extrude or under extrude while you're going over it you'll end up getting 00:08:33.479 --> 00:08:40.320 little bumps that come up or little gaps in between the in between the layer 00:08:37.740 --> 00:08:44.039 lines but on this one I don't see any of that at all 00:08:41.580 --> 00:08:48.660 even from the outer profile into the intersection which is 00:08:46.200 --> 00:08:53.110 solid all right and away it goes 00:08:51.120 --> 00:08:56.489 we'll see you in about an hour 00:08:57.600 --> 00:09:00.860 this print looks real pretty 00:09:02.700 --> 00:09:07.740 yeah I don't have very many 00:09:05.700 --> 00:09:12.240 yeah the bottom layer is very flat the print quality of this is very very 00:09:10.019 --> 00:09:17.580 consistent and similar to what they say I don't see any banding or recoiling 00:09:15.420 --> 00:09:22.080 when it's going around corners it seems to be extremely consistent on all of the 00:09:19.620 --> 00:09:26.160 flat faces which is really nice now that we have a successful print on this thing 00:09:24.600 --> 00:09:32.399 let's start taking apart and showing some of the cool upgrades that they've done using my nice lttstore.com 00:09:30.000 --> 00:09:37.620 screwdriver that is interesting those are not magnetic screws 00:09:35.399 --> 00:09:42.480 so this is that planetary gear setup that I had talked about earlier you can 00:09:39.480 --> 00:09:44.519 see in the center of that is the post 00:09:42.480 --> 00:09:49.620 attached to the motor you have two Planet gears on the sides and then an 00:09:46.560 --> 00:09:52.140 outer ring this holds stable and it 00:09:49.620 --> 00:09:56.459 moves the actual extruder gear which is in the side so these are the two thumb 00:09:53.820 --> 00:10:03.240 screws that detach the extruder open things up on the floor oh hi there this 00:09:59.040 --> 00:10:05.220 is the other two idlers for the extruder 00:10:03.240 --> 00:10:09.360 and then on the inside you can see the large extruder gear that engages with 00:10:07.740 --> 00:10:14.279 the plastic in general I'm quite happy with this printer and the history I have 00:10:12.060 --> 00:10:18.720 with prusa and the printers I've used from them and that I've seen people 00:10:16.200 --> 00:10:22.800 using from them I do believe that it is a very good machine though some of the 00:10:20.580 --> 00:10:28.740 features of it don't quite seem to be fully implemented yet like the extruder 00:10:26.100 --> 00:10:32.580 having force feedback or I have learned this is a touch screen 00:10:30.360 --> 00:10:36.480 or at least the hardware is a touch screen it's not implemented as one but 00:10:34.860 --> 00:10:40.200 maybe at some point and I think there are other a couple of other aspects of 00:10:37.980 --> 00:10:44.160 the printer itself that will get better over time with more firmware and 00:10:42.120 --> 00:10:49.079 software updates it is a good printer and I'm really happy with the overall 00:10:46.380 --> 00:10:53.940 quality of the parts that come out in the overall space of 3D printers 00:10:51.779 --> 00:10:57.360 currently I really like what prusa does I like all of the machines they've 00:10:55.740 --> 00:11:01.800 launched but with some of the competitors like the bamboo that have 00:10:59.040 --> 00:11:07.200 come out it's made the value proposition a bit more interesting this is a machine 00:11:05.160 --> 00:11:11.220 that you can buy not have to connect to a network not have to connect through 00:11:08.760 --> 00:11:15.360 anything hook up through your own Wi-Fi or your own Ethernet if you want to and 00:11:13.620 --> 00:11:20.880 not have to worry about it connecting to any other servers so there's definitely 00:11:17.640 --> 00:11:22.860 some value there but for the price of 00:11:20.880 --> 00:11:27.480 about eleven hundred dollars for the out of box kit it is expensive looking at 00:11:25.980 --> 00:11:34.620 the biggest competition in the price bracket the X1 Carbon from bamboo or the 00:11:30.779 --> 00:11:37.800 p1p they are at 1200 for the carbon or 00:11:34.620 --> 00:11:41.459 700 for the p1p compared to this which 00:11:37.800 --> 00:11:44.339 is 1100 for the as built out of the box 00:11:41.459 --> 00:11:49.620 or 800 for the kit that you have to assemble probably per myself purchase 00:11:47.100 --> 00:11:53.820 the kit and then build it because I'm technically Savvy and have built several 00:11:51.600 --> 00:11:56.880 3D printers before but if you just want something to take out of the box and be 00:11:55.260 --> 00:12:00.839 good to go I would say that this would be a good purchase especially in the 00:11:58.620 --> 00:12:06.180 long run if you have a Mark III already or a Mark III Plus getting the upgrade 00:12:03.660 --> 00:12:10.019 kit is a pretty strong proposition at 580 for the upgrade kit plus a couple of 00:12:08.760 --> 00:12:15.660 3D printed Parts you'd need to do yourself that makes a ton of sense to take a printer that's been around for 00:12:13.380 --> 00:12:20.040 five years already and giving it a new lease on life with a new extruder a new 00:12:18.000 --> 00:12:24.540 a whole bunch of new electronics and a bunch of other upgraded components 00:12:21.540 --> 00:12:26.519 overall it is a great printer and I 00:12:24.540 --> 00:12:33.180 believe that it does have some benefits over some of the competition in its 00:12:29.940 --> 00:12:35.279 history as well as the dimensional 00:12:33.180 --> 00:12:39.180 accuracy of the printer I know we've had a couple of gripes internally about how 00:12:37.320 --> 00:12:43.200 much tuning is required for dimensional accuracy on the bamboo and historically 00:12:41.100 --> 00:12:49.260 everything I've ever had from prusa that's never been a problem I maybe have 00:12:46.320 --> 00:12:52.800 to do one iteration figure out accurate settings and job done thank you so much 00:12:51.540 --> 00:12:57.240 for watching this episode of ShortCircuit do you have a 3D printer at home 00:12:55.139 --> 00:13:01.260 and think that this is either an upgrade path or a replacement for what you have 00:12:59.100 --> 00:13:04.100 leave your comments down below and be sure to like And subscribe