This is my first 3d Printer, I got it used and am having a blast printing all the things I can think of. I have ran into one "problem" though. I recently have been hearing this clicking noise, only when moving on the z axis. When off and I manually slide, it will also do the clicking. I can't really tell where it is coming from?
CTC Heatsink mod
After a frustrating few days last week, I had became rather fed up of having to remove the fan to get to the grub screw. At the same time the washers that space the stepper from the block would fall and they can be irritating to try and keep in place.   So I fixed it. Now I no longer need to remove anything to get to that pesky screw.  
Dear Everybody, I want to know what is the better 3D printer than I can buy to do some small car prototype and functionnal parts similar to the parts in attached? My budget is enter 1000 to 3000€ (or little more if needed) and I material than I want to use are: ABS, PLA, Nylon, Polycarbonate, PETG and perhaps flexible.
Selling a MakerBot Replicator 2 with a glass build plate.  The build plate has been printed on <10 times.  The nozzle and thermal barrier are newly replaced, with only about 10 hours of printing on them since replacement.  The panels have been removed, so the black sheet metal frame is visible (aesthetic only).   I'm looking for $750.
I have two Fusion3 F306 commercial grade 3D printers up for sale. Perfect working order. Printer is $5000 new.   I am asking $3,600 for each machine. If you want to buy both I can drop the price a little.    They are up for sale on ebay, so you can buy them strait from there.  https://www.ebay.com/itm/192267297672?ssPageName=STRK:MESELX:IT&_trksid=...  
HI everybody   We are thinking about getting a 3D printer in my work. We have decided to go for a resin printer.   We could spend 5000 euros/dollar.   What do you recommend?   I've been in a fair in Frankfurt Germany last year and I saw the Form2 and the B9 Creator; these were the two I liked the most   Any other options?   thank you regards
I’m curious about what high speed resin (DLP/SLA/etc.) printers are currently on the market that have the ability to create fairly accurate models.  I would like to have several machines like this to help support our Objet/Projet machines prototyping needs, which are extremely accurate and have large build areas, but are slow and costly to use.  My intentions would be to have several of these set
FOR SALE: ULTIMAKER 2+ 3D PRINTER Excellent condition, prints super reliably in very fine detail, I have used this model for samples / prototypes and also for finished sale items.   Originally bought new in February 2017 from 3DGBIRE.   PRICE: £1,450 + delivery. Sorry, no offers.   PRINT HOURS
I am currently working on a study and I want to know the challenges/problems faced when 3D printing additional polymer features and structures over/on top of previously injection-molded plastic parts in a way that there is a good adhesion between the underlying injection molded part and the overlying 3D printed structure.

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