Thank you for your reply. I am printing pretty large stuff normally. I noticed that the duct was rubbish. It melted due to the heat of the hot ends. I designed a different one myself as well but I would be curious to your design also. Would you be able to upload it? I switched to a 0.4mm nozzle. Is that large enough? I wanted a larger nozzle also because that gives stronger prints but also I had some nuts and bolts that needed to fit and I didnt know how much a larger nozzle size would affect that. Your third tip comes too late my right nozzle is really hard to change for some reason. Maybe this was even directly the case. How does it affect the extrusion? Can you print faster due to more efficient heat transfer? What kind of clogs did you have? I have them constantly now
My belts seem to be alright.
I am also wondering about that. I have heard about several people getting new printers after their original one and also the newly sent ones turned out to be defective. They even had to increase the price of the HS. More recently however, they lowered the price with about 1000 euros. They advertised this as being a more efficient production process but maybe this is because they want to get rid of all of them. This is something I can imagine.
I re designed with a prusa type cooler, i have since upgraded with a titan exstruder and hotend from e3d, im pretty happy with this new setup.
The entire machine is re built now apart from the skrew drive and the frame. electronics bed heating exstruder, bearings bearing assembly exstruder holder., absolutetly everything. It would have been easier just building one fron scratch to beginn with and it would have saved me a ton of money for the original machine (that never really worked).
I’m a bit far behind from what you’ve done, mostly because I’m not that patient.
So far my biggest change has been the electronics. I’m using a Megatronics.
I really want to replace the linear bearings, get the steppers out of the extrusion cradle, redesign that and replace the extrudes for all metal ends with heat sinks. I wasn’t aware that the 0.35mm nozzles were that big a problem.
The one thing I’m going to do now (that the Megatronics allows me to with the latest Malin firmware, 1.1.0 RC8) is to use two independent stepper drivers for the y axis. I just can fine tune he stepper driver otherwise with the all the weight owe Nema 17’s have to throw around.
Thats a good first step i put in a smoothieboard actually.
How do you connect the new temperature sensors of such a new hot end? I noticed that the current temperature sensors are like 130K at room temperature, while I think many thermistors are rated 100K at room temperature. Does it need some changes in the firmware?
Well, not the first step, just the biggest one. I’ve replaced quite a few mechanical com ponents thus far. Both the x-axis 8mm rods were crooked like you wouldn’t believe.
This sort of thing.
The aluminium sheet bracketry / covers around the head are somewhat bent on my machine so my model may not fit your unit well.
Also wires for thermistors and cartridge heaters point out at right angles to the blocks, on my printer, requiring the duct to be rather wide in the x-direction (can’t be too wide otherwise clashes with LH wall of enclosure! Also I have an older unit without the sheet metal nozzle cowling that I can see from the latest Leapfrog photos.
The exhausts are biased either side of the print nozzles, and angled below the tip, to try to reduce the chance of cooling the blocks too much (been there, done that).
Print shown is E3D / SpoolWorks Edge, printed on a Cetus3D extended (Kickstarter edition), on a raft with supports disabled. Great printer, if you are after a cheapy machine that just works…
(ETA - you will note that the duct model below has some built-in supports that need clipping off)
fanductnew25-main-2.stl 15 (3.05 MB)
fanductnew25-bracket.stl 15 (83.1 KB)
I re coded with the propper thermistor from E3D in the firmware. It wasnt hard i just changed a few numbers thats it. E3D provided a great guide
I believe you Mine came with a fantstic 4 mm wobble in the z skrew drives.
I bet they have a lot of those types of startup funds and all sorts of government and EU institution accelerations funds or whatever. I cannot fathom how the hell these guys have been in business for so long and keep putting out ever more expensive machines. I just checked their website and they now have a €22,000 machine!!! What the bloody fuckin’ hell!!! Who would give these guys that much money?! Then again, I did give them €2000…
But yeah, they always have very slick marketing, but their claims always seems to be extremely exaggerated. They make it seem like they’re the top 3D printer manufacturer in the world, yet you hardly (if ever) hear about them in any 3D printer reviews or in any specialized media in the field of additive manufacturing.
Another of their disgusting little tactics seems to be the Apple Computer approach to “innovation”. They add some gimmicky thing to their machine that has been around for quite awhile (like x axis dual carriage) and present it as if its their innovation. The bloody thing has been included in the Marlin firmware for quite some time. The €22,000 machine claims to come with a patented bed leveling technology. I can only wonder…
I to had to know the Leapfrog machines and what i can expect and delt with it, i did no adjustments to the machines and i have three of them running fulltime . What i did was find the correct settings for every print i make and every filament i use in Simplify 3D. So sorry, guys a partialy agree, but you’ll have to know the machine. This is my opinion besides technical malfunctions
happy printing
I agree that once the pronter is working, the prints have a quality which is good enough for me. However, it is only working like 25 percent of the time so that is what really annoys me. From what I have seen, there are printers around which also print in a reasonable quality, are more reliable, cheaper, less noisy, have parts for which cheap replacements are available, etc. So if I would buy a new printer, there is a really small chance that I will buy a leapfrog again.
Awesome, thanks!