I appreciate it Matt! Working with Fusion 360 is very fun and if you have the chance to play around with their software, I would highly suggest you give it a try. Cheers
I did find the CAD interesting but I like the hands on of you actually piecing it all back together. Great attention to detail as always with very clear explanation of every step of the procedure.
Hi Mike, thanks for your feedback about the 3D models! Rivets are the way to go and that‘s the way these hubs were engineered. It‘s not a bad idea to stick to the proven method😃👍🏽 Regards Andreas
Very interesting and a great visual explanation. The bolt cannot fill the void and there's not enough surface area for the nut to properly tighten. This would likely create some slack which would naturally get worse in time. Not a good situation. Again, thanks for another well thought out video.
Correct, the bolt will hold and secure the drive dog to the wheel hub, but not fill the given space. With vibrations, and torque you may run into an issue sooner than later. Rivets are the most proven fasteners for vibration. This is another reason why they are still used on aircrafts up until this day. Thanks for tuning in Chris! Regards Andreas
Hi did you try to fit the rivet with out heating them ? As in aircraft manufacturing an air rivet gun can be used instead of a hammer and punch. This would allow you to set up the way you have with the bolts and two rivets support the hub and use a doll and rivet gun . This is the process used to manufacture of aircraft. I think your video's are great, keep up the good work Regards Gary
Hi Gary, this process can definitely be done without using heat just like you mentioned in the comment above. Although there are a few benefits when using heat. A hot rivet requires less force to be installed and it will seat better within the bore. During the cooling process the rivet will contract in length, which offers an even tighter fit. There are many advantages when using rivets and that's another reason why aircraft manufacturers still use this fastener up until this day. With the right tools & setup, it's really not that hard to install. Thank you for this comment and your ongoing support. Regards Andreas
hello sir! thank you ever so much for fast answering. your work is beautiful and remarkable! we enjoy it so much and way more learning. a real treasure... { if its not rude please tell if you Canadian?}
Hi Henry, I did not mention the drive spline in this video at all, as I wanted to focus on the drive dog assembly. The external splined shaft has the same amount of wear and it will not be reused. In an upcoming final drive rebuild video I will showcase the need for new parts (at least in my case) and how to assemble the final drive. I hope to upload this in the next days😊👍🏽 Thanks for leaving an engaging comment! Regards Andreas
why couldn't you use countersink bolts from the top that are slightly larger in shaft diameter than the holes of the drive dog(+/_1/10 -1/20 mm, play with imperial and metric bolts and or drill bits ), heat up the drive dog, press them unto that, let it cool, heat up the hub , press the bolts at the bottom of the drive dog through the holes in the hub, and while still hot, screw on lock nuts on the bottom? That way with a relative simple to make jig on your drill press to drill out the holes and countersink the dog, the same result can be achieved.
This isn't a bad idea and it could work with the right amount of effort. Modifications that would have to be made are: -Drive dog chamfer cut -Drive dog bore resized -Wheel hub bore resized -Wheel hub counter bore resized With all of this in mind, all bores have to be very accurate in order to fit snugly against each bolt you insert. This method might possibly involve more tooling than the setup I shared in my video, which might shy DIY's away from this assembly. Thank you for sharing your idea under this video, as it's always good to hear what else could be done! Regards Andreas
There is a huge market for BMW parts out there! BMW still supplies many NOS or OEM parts and you will find many aftermarket suppliers for parts. Most parts that can be sourced are to rebuild certain components, so when you looks a this assembly you can find the rear drive dog and the rivets. If you want a hub, it will be probably be much harder. That's another reason why most BMW airhead owners recondition their brake drums after a few hundred thousand kilometers. Regards Andreas
This video is absolutely amazing! Your 3D modeling skills are very impressive and I'd love to see more of that in upcoming videos.
I appreciate it Matt! Working with Fusion 360 is very fun and if you have the chance to play around with their software, I would highly suggest you give it a try. Cheers
I did find the CAD interesting but I like the hands on of you actually piecing it all back together. Great attention to detail as always with very clear explanation of every step of the procedure.
I am grateful for your feedback and I will keep this in mind in my upcoming videos. Thank you for watching, Simon! Regards Andreas
The 3D modelling was excellent and the explanation informed the demonstration very well indeed.
I'm glad to hear that you enjoyed the 3D modeling and explanation of rivets, Julian. Thank you very much for your comment as well! Regards Andreas
Love the 3D models. I would use the rivets for sure.
Hi Mike, thanks for your feedback about the 3D models! Rivets are the way to go and that‘s the way these hubs were engineered. It‘s not a bad idea to stick to the proven method😃👍🏽
Regards Andreas
Good job man!
Thank you very much! I hope this video will help you out, if you ever need to do your drive dog. Regards Andreas
Definitely use rivets!!
That’s really the way to go👍🏽
Fantastic thanks
Thank you very much for your feedback! Regards Andreas
Very interesting and a great visual explanation. The bolt cannot fill the void and there's not enough surface area for the nut to properly tighten. This would likely create some slack which would naturally get worse in time. Not a good situation. Again, thanks for another well thought out video.
Correct, the bolt will hold and secure the drive dog to the wheel hub, but not fill the given space. With vibrations, and torque you may run into an issue sooner than later. Rivets are the most proven fasteners for vibration. This is another reason why they are still used on aircrafts up until this day.
Thanks for tuning in Chris! Regards Andreas
Super film, dziękuję.Bardzo dobrze wyjaśniłeś potrzebę zastosowania nitów. Pozdrawiam serdecznie
Thank you for your kind words and comment all the way from Poland! Regards Andreas
Hi did you try to fit the rivet with out heating them ?
As in aircraft manufacturing an air rivet gun can be used instead of a hammer and punch. This would allow you to set up the way you have with the bolts and two rivets support the hub and use a doll and rivet gun . This is the process used to manufacture
of aircraft. I think your video's
are great, keep up the good work
Regards Gary
Hi Gary, this process can definitely be done without using heat just like you mentioned in the comment above. Although there are a few benefits when using heat. A hot rivet requires less force to be installed and it will seat better within the bore. During the cooling process the rivet will contract in length, which offers an even tighter fit.
There are many advantages when using rivets and that's another reason why aircraft manufacturers still use this fastener up until this day.
With the right tools & setup, it's really not that hard to install. Thank you for this comment and your ongoing support. Regards Andreas
hello sir!
thank you ever so much for fast answering.
your work is beautiful and remarkable!
we enjoy it so much and way more learning.
a real treasure...
{ if its not rude please tell if you Canadian?}
Thank you for your overly positive comment! I will continue to share as much information as possible
Regards from 🇨🇦😃👍🏽
@@WorkshopRebuild
Regards from israel back to you at Canada!
Excellent Mate ! May I ask u which software is that ? Thanks !
Sorry I got it the software is "Fusion360" thx Mate !
Thank you for your feedback Jorge! The software I use is Fusion360 and I really like it. You should give it a try!
Maybe I missed it but was there any mention of the part that drives the drive dog. It will have equal wear.
Hi Henry, I did not mention the drive spline in this video at all, as I wanted to focus on the drive dog assembly.
The external splined shaft has the same amount of wear and it will not be reused.
In an upcoming final drive rebuild video I will showcase the need for new parts (at least in my case) and how to assemble the final drive. I hope to upload this in the next days😊👍🏽 Thanks for leaving an engaging comment! Regards Andreas
why couldn't you use countersink bolts from the top that are slightly larger in shaft diameter than the holes of the drive dog(+/_1/10 -1/20 mm, play with imperial and metric bolts and or drill bits ), heat up the drive dog, press them unto that, let it cool, heat up the hub , press the bolts at the bottom of the drive dog through the holes in the hub, and while still hot, screw on lock nuts on the bottom?
That way with a relative simple to make jig on your drill press to drill out the holes and countersink the dog, the same result can be achieved.
This isn't a bad idea and it could work with the right amount of effort.
Modifications that would have to be made are:
-Drive dog chamfer cut
-Drive dog bore resized
-Wheel hub bore resized
-Wheel hub counter bore resized
With all of this in mind, all bores have to be very accurate in order to fit snugly against each bolt you insert. This method might possibly involve more tooling than the setup I shared in my video, which might shy DIY's away from this assembly.
Thank you for sharing your idea under this video, as it's always good to hear what else could be done! Regards Andreas
Are most of all these parts purchaseable via BMW for these early 70s bike. Can one just buy a new hub?
There is a huge market for BMW parts out there! BMW still supplies many NOS or OEM parts and you will find many aftermarket suppliers for parts. Most parts that can be sourced are to rebuild certain components, so when you looks a this assembly you can find the rear drive dog and the rivets. If you want a hub, it will be probably be much harder. That's another reason why most BMW airhead owners recondition their brake drums after a few hundred thousand kilometers. Regards Andreas
What is locating the new drive dog concentrically, if I need to open up the rivet holes?
Hi Stephen, the drive dog features a step that corresponds with the wheel hub. This centers the drive dog within the assembly.