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.
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.
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!
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.
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!!! 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
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.
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.
I know this comment is a year old now. Idk if they still do it but rotring would service your pencil for around $20USD, I hope you found a solution long ago my friend.
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.
Ever since doing this “super glue” repair it hs help up through time. I havent dropped it again tho. It seems that this lasts a LONG time just doesn’t stack up to a hard fall. The weight of the pencil when it hits the ground will wreck havok on thin plastic if it hits with the tip extended. Others have years with their 800s but the 600 is the better of the two if only the tip didn’t bend/break so easily with any fall.
@@franciscoyerena8427 I "HAD" a rapid pro and I lost it the day I bought my 800+. But the twisting mechanism screaks (not sure which word to use there)when I open it. My friend has a 800 and when I twisted his pencil the twisting mechanism was silent. Could you help me here please Do I need to oil it?
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.
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 just used good old epoxy the mix with grey and white and then hardens and super glue. Superglue on the white seams and put them together then epoxied the outside. Make sure none goes inside thats why i superglued it first.
It should be identical! The only difference between 800 and 800+ is a removable rubber nib that screws on/off with an included key from the lower grip. The top and mechanism is identical.
They use some serious locktite/glue. Try using a hair blower or heat gun whilst doing this ive helped a couple friends or simply open/close the mechanism all day like a fidget device and you will slowly break that glue with use !
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
The force/accel of gravity is going to act through the center of mass of the pencil. If the CoM isn't at the center of the pencil(highly unlikely) this force will induce a rotation in the pencil. Also basic physics.
@@justinfields18 no, it all accelerates at the same rate. Otherwise if I tape a 10lb weight to a 100lb weight it should induce rotation when dropped in a vacuum
I did yes! I used jbweld mixing the grey and the white substances and its held up very nicely :) Ironically i have since dropped it again, but it survived just fine !
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.
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.
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!
why on earth aren’t all those pieces made of metal :(
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.
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.
How long should I warm it with a hair drier?
loose*
Loctite is a glue
@@barracuda6817 aka super “glue.”
Cannot get it off for life of me
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!!! 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
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.
Thank you, I disassembled and repaired my broken pen thanks to your video sharing.
Thank you so much! I used this to teardown my brand new 800 to remove the clip!
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.
Really helpful video
Wow, you just solve my problem, thanks you very much.
I can’t pull up that back ring... i did every methods and it only makes a huge scratch... thats ULTIMATE RING
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.
Lem3n at school there’s a lawn. When I was there must have gone in my pocket.
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...
I know this comment is a year old now. Idk if they still do it but rotring would service your pencil for around $20USD, I hope you found a solution long ago my friend.
Excellent video! Thanks, this let me extract the eraser that got pushed to far into the barrel.
I've given up hope on getting that piece off. I've tried pliers and a kitchen torch. It's rather frustrating:'(
A great video. Just what I needed. Thanks!
Thanks, just fix my pen #800 based on your video guide.
wow men this is verry good video appicirate it
is the black piece plastics on plastic?
Can you guide us through the process of removing the back part? I haven´t been able to do it yet... I need guidance
he showed it in the video
Bro ı just found what ı needed.Thank you
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.
Ever since doing this “super glue” repair it hs help up through time. I havent dropped it again tho. It seems that this lasts a LONG time just doesn’t stack up to a hard fall. The weight of the pencil when it hits the ground will wreck havok on thin plastic if it hits with the tip extended. Others have years with their 800s but the 600 is the better of the two if only the tip didn’t bend/break so easily with any fall.
@@franciscoyerena8427 I "HAD" a rapid pro and I lost it the day I bought my 800+. But the twisting mechanism screaks (not sure which word to use there)when I open it. My friend has a 800 and when I twisted his pencil the twisting mechanism was silent. Could you help me here please
Do I need to oil it?
@@franciscoyerena8427which part did you superglue?
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.
hey! I'm just curious, did you ever end up getting it to work? I'm running into a similar issue right now
Did you ever get it?
It's not a flaw. The pencil should be tip heavy for witring.
5:36 I hate that the wearing pieces are plastic :\
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?
Thanks man.
The collar at the top on my pencil came loose and now idk how to screw it back in lol
Brilliant. Exactly the problem I had!
thank you
Just broke it while trying to
please tell me how to glue it 502seems poor😢
I just used good old epoxy the mix with grey and white and then hardens and super glue.
Superglue on the white seams and put them together then epoxied the outside. Make sure none goes inside thats why i superglued it first.
Thanks
how for 800+
It should be identical! The only difference between 800 and 800+ is a removable rubber nib that screws on/off with an included key from the lower grip. The top and mechanism is identical.
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.
They use some serious locktite/glue. Try using a hair blower or heat gun whilst doing this ive helped a couple friends or simply open/close the mechanism all day like a fidget device and you will slowly break that glue with use !
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
The force/accel of gravity is going to act through the center of mass of the pencil. If the CoM isn't at the center of the pencil(highly unlikely) this force will induce a rotation in the pencil. Also basic physics.
@@justinfields18 no, it all accelerates at the same rate. Otherwise if I tape a 10lb weight to a 100lb weight it should induce rotation when dropped in a vacuum
did you fix it?
I did yes! I used jbweld mixing the grey and the white substances and its held up very nicely :) Ironically i have since dropped it again, but it survived just fine !
if you use the eraser on mechanical pencils youre disgusting
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