Robo 3D Adjustable X carriage w/removable adjustable double fan

thingiverse

EDIT: 11/16/2017 Added newer, far superior fan to this device. Update: The bearings I installed on the Y axis mod are still functioning perfectly. So, I believe the issue was that I over-tightened them initially and they eventually failed. Everything works flawlessly with them just snugly secured. EDIT: 11/15/2017 Redesigned the fan again, making it significantly better!https://www.thingiverse.com/thing:2648964 EDIT: 8/27?2017 I designed a superior fan for this mod right here>> DELETED! EDIT: 04/22/2017 I purchased bearings from E3D and they have been working great so far! So, just forget the cheap alternatives and get these.http://e3d-online.com/623ZZ?search=M-BEARINGS-623 WARNING: Secure only! If you over-tighten them, the bearings will fail. At least that was my personal experience... I created an adjustable Y bearing block for my Robo3D http://www.thingiverse.com/thing:2047143 and it has worked incredibly well so I decided to do the same for the X. Not only does it allow you to adjust the bearings if they ever become loose, you no longer have to use any grease! I hated grease because everything would stick to the grease and pull it right into the bearings. No more! Another benefit I see is that when I want to work on the x carriage, I don't have to disassemble the entire printer. Just undo the adjustable bearings and lift it straight off! So far, I am extremely happy with both the X and Y adjustable parts. Print Settings Printer Brand: Robo 3D Printer: R1 ABS + PLA Model Rafts: No Supports: Yes Resolution: .2 or .3 Infill: Solid for bearing blocks and 30% for carriage Notes: As with my Y blocks, I have made changes after creating and installing the versions I'm using. I used metal tape again to hold the nuts in so they don't fall out during installation. I printed the carriage at 30% but may end up printing it solid at some point because I have active heating for the enclosure (that's why the water cooling as well) and I think the part "might" warp with only 30%. Time will tell. I had to be strategic about where to place support when printing the fan part. I manually added support to the inside ring part that doesn't touch the bed and left out any support on the inside of the ring part. If not, I would end up breaking the part before getting the support out of it. Also, just uploaded a revised version with longer clip to hold it to the carriage better. NOTE: After having one of the cheap bearings fail on me pretty quickly, I am upgrading them to these. https://www.aliexpress.com/item/Free-shipping-10PCS-3X10X4mm-S623-2OS-CB-ABEC7-LD-3x10x4-Stainless-steel-hybrid-ceramic-ball/32596349454.html?spm=2114.13010608.0.0.qj8K6t NOTE: I've been running the Y axis blocks for about a month now and I have yet to adjust them at all. Both Y and X axis's are still using the cheap steel bearings initially installed. Thus far, the Y axis has had no problems with these cheap bearings but as I mentioned in the X axis Thing post, one of those had gone bad. I'm still running it like this until my new ones arrive. There is a clicking now and then and I believe it has been the reason for a missed step from time to time so I'm looking forward to seeing how the hybrid bearings do. When installing these, I didn't tighten them much at all! Barely snugged them up and they have been great ever since. I think the extra money spent on the better bearings will be worth it in the long run.