Replacing Drivetrain Parts with 3D Printed Carbon Fiber Nylon - FOR SCIENCE!

oh no if you take a pickup truck and remove the differential ring gear and replace it with a 3d printed ring gear will it still work will the plastic hold up or will it just break let's find out let's talk about this replacement gear this one is the original and it's painted because I tried to 3d scan it but it ended up not working anyways and this is the one that we made the original gear that was on here had threaded holes which we discovered were left-handed fine thread so I decided instead to swap out the original bolts and use these if you look around the inside of this you can actually see that there are matching nuts embedded into this part these actually can't be removed without destroying this part and this was done by telling the printer to pause at a height of 17 millimeters removing the part from the printer hammering Knutson and then placing the part back on the printer rehoming and resuming the print and now it has embedded nuts in it for those of you who are familiar with 3d printing you probably also noticed by now that this isn't your typical 3d printing filament this gear was printed on carbon fiber nylon or mater hackers nylon X I chose to use this material because it has the strength of nylon but because of the chopped up carbon fibers it's not flexible like nylon it's a very strong and stiff material it was also really important to me that we made this a very stiff material because I didn't want to worry about the ring gear teeth being flexed right out of the way about the pinion gear speaking of nylon X that brings me to today's sponsor matter hackers matter hackers isn't just an online store where you can buy 3d printers parts and exotic filaments they're also well known within the 3d printing industry for their excellent customer service free shipping within the US and their technical guides that even I have found very useful if you're looking to get some nylon X for yourself there's a link in the description that won't cost you any extra but will help the channel up so thank you let's get to the fun part it's time to install this thing [Music] alright let's crank this thing up it runs [Music] no news always gonna be an issue so remember when I said that I pulled this off the printer at 17 millimeters and put the nuts in it well I feel like this is about the 17 millimeter mark because you can see so let's Jamie weld this back together you think we can could just go with the answer no you want to shave you all the back together I'm sure was there wd-40 director alright so here is the carnage you notice here the pinion gear actually pushed my plastic and where my model was a little bit wrong and everywhere else the gear tooth looks pretty good but the real problem was twofold one because I told it to pause at 17 millimeter so I could put these bolts in that allowed the part time to cool down so this layer didn't adhere very well to it and the other issue was is that when I put it back on the build plate and you'll see this in the time-lapse this layer wasn't fully compressed like it should have been onto this layer so a two-fold issue but we're gonna try to JP weld this thing back together and see if we can get it working because it has such a nice surface to attach JP well - as long as we can get all of this oil off of it so we're gonna try that and see if that works okay so the JV weld is set you can see I got some really good application all around here pretty good all around here and a few little rough spots like this one other than that it's pretty good it's not exactly centered but it's pretty close and hopefully this fix is my layer delamination issue so crossing my fingers we're just gonna throw this thing in and save you guys the pain of watching us install again so boom alright so we got the JP welded differential in place and now we are going to try it so hopefully this works [Music] the grunts really yep [Music] yeah [Music] all right time to go for a drive yeah let's go for a ride maybe a good idea we're going to let it wear in a little bit just a few minutes and then [Music] w-4 [Music] after okay so it broke along RGV weld which sucks looks like a little bit of the Jaypee well this on each side so I'd say maybe good application but it still just didn't work so here's what this gear looks like you could tell that JB well did attach to both sides because it stayed on one side stayed on the other side somewhat it just didn't stick very well there's not many materials that will stick to nylon very well so that's unfortunate but yeah so to answer the question of is it a good idea to replace your differential with a plastic differential I think the answer is probably not and I feel like I haven't thoroughly represented the layer strength of this material because I paused the print and I'm considering doing this again but I'm gonna need some encouragement from the audience so if you guys want to see me do this again without the nut inserts and custom threaded holes with a tap or something like that let me know in the comments section and maybe I'll come back to this project until then if you have any questions or suggestions for me leave a comment below and if you'd like to help my differential replacement therapy reach a broader audience then hit that like button and share this video with your friends hey thanks for watching you

Channel: Gear Down For What?

Views: 417,164

Rating: 4.6481957 out of 5

Keywords: 3D, Printed, Differential, NylonX, Carbon, Fiber, Nylon, CF, GDFW, Pickup, Auto

Id: 7kd4ZLn-Ouw

Length: 8min 56sec (536 seconds)

Published: Sun May 06 2018