Microswiss All Metal Hotend Kit for Flashforge Finder and Flashforge Guider 2 (.4mm)

I read a bunch of the reviews for this product. Some people seemed to have a lot of difficulty with this. and a few people mentioned some extra steps to be taking. DO NOT ADD HEAT SINK COMPOUND. I thought this would help and instead I spent several hours trying to figure out why the nozzle would not quite reach the operating temperature I wanted. Heat sink compound will make your cooling fan too efficient to heat up correctly.The installation is super easy. The dimensions of this product are slightly different from the OE brass nozzle. After you install this in your printer, just run a Z axis calibration to account for a different nozzle length and re-level your bed.Past that little piece of information you just need to familiarize yourself with new settings in an all metal hot end. I highly recommend this.

I've seen many people dislike the Micro Swiss hotend stating that it clogs on their Flashforge Finder, etc. This isn’t just a swap and play item, you do have to tune the settings as temp and retraction rates will need to be adjusted....also mentioned in their installation video.So far, I’ve printed a few temp towers using hatchbox pla and appropriately set up temp changes at given marked heights. Before with the PTFE lined hotend and hatchbox pla, I was printing 220°C with no problems or stringing and yes, that’s a bit on high range where 210°C is usually the temp stated by most manufacturers.I made several profiles to reflect each setting change, named appropriately and completed a full temp tower print for each setting change ~1.5hr per print.After only changing the retraction rates and running proper manual setup temp tower with 45degree angles, bridges, cones, etc (to automatically change temp and appropriate heights) I’ve went from stock 1.3 retraction down to .7/.5 retraction.The best results I saw from the prints are printed with .7 retraction @ 200°C. Of course, a second opinion and set of eyes is cruital, so I asked my 12yo to look at each one set and determine which was the best, without him knowing what it was or why. He chose the 200°C on both .7 and .5 retraction and after scrutinizing the prints further, he decided on the .7 retraction @ 200°C.One last note......He did say that the stock setting of 1.3 retraction on all temps looked like crap compared to the .7/.5.Again, this was installed on a Flashforge Finder plus with hactchbox PLA and instructions were followed as per mfg specs with no issues other than settings.Now to verify Solutech PLA settings, Hatchbox TPU and ABS and create profiles for each.If you don’t make retraction setting changes, yes it will clog and prints won’t look as they did with the stock ptfe lined hotend....as my son put it "looks like crap!"EDIT: few changes

probably regretting getting this to my trusty finder... filaments now have like 60% jams. Which never happened before. Installation is straight forward too. Now I have MS all metal hotend on my other printers and they're all great! but for this typical printer. I'd stay away. Now I rarely use my finder =/ It's just not printing quite right anymore.

This seemed like a quality upgrade. The product seems well made. However, it never fit in the hot end like it is claimed. It was not flush, wither due to a change in the printer or a defect from Micro Swiss. The lack of correct fitment made the hotend taller forcing the whole bed to be re-leveled and account for the extra inch or so that was added. As a result the tip leaked and prints never came out correctly again.

As the title states, if you have jamming it's because there isn't good enough thermal transfer between the threaded heatbreak tube and the stock heatsink. If you liberally slather things up with thermal paste during assembly this will solve this problem.I initially installed it without and had severe issues. After redoing with thermal paste it's been nothing but perfect since.You also *MUST* change your retraction settings. 0.5mm @ ~25mm/s is a good starting point.Edit: June 2021, still working perfectly.

When not installed properly it produces a lot of stringing and rains globs of plastic. (You can guess how I know that.) When it is installed properly, it works great and permits using high temperature filaments. Tech support was prompt and courteous ... they didn’t even cajole me for not following the installation video’s instructions. Works in my Guider IIS as well as my Finder.

Complete failure on a FlashForge Finder. Difficult to install, requires complete breakdown of hot end. Never did work right.

This does not fit the Flashforge Guider 2s as stated in description. Unfortunate. I was really excited to try this out. MicroSwiss needs to update their website and distributors to this. It could be done if they did some simple additional engineering but that's on them. Pictured on top is the hotend and PTFE tube on a stock hightemp Guider 2S extruder bottom is the MicroSwiss. It's clear even by looking at them it is not compatible. The Guider 2S heat sink does not have counter thread very far into it so the MicroSwiss hotend will not thread in as far as it needs to. Boooooo MicroSwiss 👎🏻

Much improvement over OEM tube