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I NEVER would've figured this out on my own. Thanks!

It doesn’t open, that’s humanly impossible, I used a big pliers, I even scratched the whole fucking thing. But it did not come off.

please tell me how to glue it 502seems poor😢

Obrigado pela ajuda meu camarada!!! Eu estava com uma 800 nova aqui com problemas de entupimento e quebra constante das minas. Era apenas um mínimo juste que eu precisava!!! 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼

why on earth aren’t all those pieces made of metal :(

Thank you so much! I used this to teardown my brand new 800 to remove the clip!

EPIC design. The design engineers put a good failure mode in there 😮 Could have increased the tensile strength of that cam that broke or increased the thickness. What they probably did is start really strong and down grade the material and thickness until it failed at a set torque. We do this with materials when designing stuff. What is known as "engineering critical analysis" where we stress test a material to define whether the critical point of failure is acceptable/safe under given conditions. We can predict design life like that too. Brilliant really, you can make anything bulletproof and last forever except when the sales and marketing guys get their hands on things! Deliberately bottom heavy no doubt. Mine is tight and the lead doesnt auto-load anymore even after cleaning. Have to check alignment and stuff. Great vid, thnks for sharing.

This was great, thanks for making the detailed video! My 800 went through a bit of a flood and this disassembly helped me get it apart and cleaned up. Very useful! I used "section pliers" like for a fountain pen to disassemble that top glued bit as they are padded and shouldn't mark, but some of the black anodizing still stripped off.. Probably because it was attached more strongly to the glue than it was to the metal.

Wow, you just solve my problem, thanks you very much.

wow men this is verry good video appicirate it

The top section on my silver chrome Rotring 800 that I bought at a super reduced price on Amazon (US) last November came completely unscrewed and fell off before I noticed it was loose at all. I watched your video a couple of times and was able to gently screw it back on all the way, something I don't think I would have ever figured out without seeing your technique. Thank you!

Thanks man.

Thank you very much. My twist end actually popped off and I couldn't understand how to screw it back on. I thought maybe I lost a piece, but your video helped me understand I had to hold the part just under the twist part to screw it back on. Much appreciated.

My 800 0.5's tip doesn't allow .5 lead through it.. I wonder if I can buy parts online or something. I think I paid $70 for this pencil...

Amazing thank you!

The collar at the top on my pencil came loose and now idk how to screw it back in lol

Thank you, I disassembled and repaired my broken pen thanks to your video sharing.

Bro. I use the 800 you got me everyday at work, and I barely started having problems with it. Surprised me to see you on the google recommended video hahaha. Miss you brother. hope you're doing good.

Thanks, just fix my pen #800 based on your video guide.

这个笔设计最垃圾的地方就是笔芯，买了2天就坏了，花了＄50，垃圾红环，艹

Hi, I wonder if you can help me with a problem I’ve got with my 600? It’s developed a ‘gap’ between the knurled part and the main barrel, and it won’t screw fully together. It’s not cross threaded, it just seems to be bottoming out on something and I just can’t work it out. I wondered maybe if you tear down these pens you may have some idea?

I've given up hope on getting that piece off. I've tried pliers and a kitchen torch. It's rather frustrating:'(

Excellent! Help my get it back to life. Thank you so much! I had to heat the upper part too though, to open it up.

It's not a flaw. The pencil should be tip heavy for witring. 5:36 I hate that the wearing pieces are plastic :\

if you use the eraser on mechanical pencils youre disgusting

I would be grateful if you could post a video of actually doing the last two steps instead of just unscrewing them easily after you've already done it. I literally have multiple pairs of pliers on that black ring and cannot get it to budge. I've even tried heating it up with a blow-dryer. Been at it for hours with no luck.

I can’t pull up that back ring... i did every methods and it only makes a huge scratch... thats ULTIMATE RING

Thank you for the video. It was laser focused on the task at hand, which I appreciated, and the teardown was informative and well-explained.

Very useful and well explained, thanks for sharing !

cut your fucking nails jesus you disgusting

is the black piece plastics on plastic?

Brilliant. Exactly the problem I had!

Can you guide us through the process of removing the back part? I haven´t been able to do it yet... I need guidance

thank you

Awesome thank you for taking the time to do this!

Seems like those plastic pieces are fragile, would like to see them made out a higher quality material. How do these hold up after long term use? I have a bunch of 600s just not sure if I should get an 800.

actually the way the weight is distributed has nothing to do with it its the way you drop it something heavy doesnt fall faster than something light its basic physics

how for 800+

Excellent video! Thanks, this let me extract the eraser that got pushed to far into the barrel.

Thanks

That's not glue, that's Locktite to prevent it from coming lose. You can use a heat gun or a hair drier to warm it up and you won't need to use pliers to unscrew that inner piece. Very nice video though. Thanks for posting.

did you fix it?

Bro ı just found what ı needed.Thank you <3

A single piece of grass single handedly destroyed my 800’s entire mechanism. I had to pull it out and it finally worked.I find it quite interesting and ironic.

A great video. Just what I needed. Thanks!