Looks awesome. I'm sure quite a few of us P60 brushless guys would love these. Might be a small product you could make/sell for the combat robotics group.
Hi, about 20 years ago I had made the prototype tool to remove the needles on the Atmos clocks from Jeager-Lecoultre. The only difference was the steel body and the pocket was through. The toolmakers wanted 3 weeks to think and make the plan and it took me 1 hour for the plan, the machining and the heat treatment. I did it with a Aciera F1 milling machine.
Loved how you walked us thru the processes of designing so well. Nicely done! Btw you might’ve said it, but how’s the stratasys machine going? Really looking forward to the next part on that.
Thanks! The stratasys is still in the corner, mocking me. I need to get back to it, but I need to finish my 30 pound combat robot by October. I'm ahead of schedule, so I might be able to fit it in while I wait for parts to arrive and such. But I still plan on finishing it for sure.
To put a pinion on a motor: put motor in the freezer, pull it out a few hours later. Heat the pinion with a blow torch. This makes the shaft a little smaller, and the pinion a little larger. You can make the pinion hole a tiny bit smaller than the shaft this way. It is almost impossible to remove the pinion after this because when they both get to room temp, the shaft expands into the pinion, and the pinion shrinks into the shaft. Does anyone know if a pinion remover like this on, would it get it off?
What you're describing is an interference fit. You can heat/cool the parts to get them on as you describe, or use an arbor press. I used a 1 ton arbor press to get the pinion on. This tool removed it just fine.
OH I think you're right! I just googled the tamiya and they DO look almost identical. I'll admit, I hadn't seen the tamiya one before and if I knew it existed, I probably would have just bought it instead.
What solidworks version are you using to get CAM? I have 2010 and I was told there is not a version of SW with a good CAM option. Any thoughts? I use SW and export models to Fusion360 to get CAM but its time consuming when I need to make model changes.
I think 2014? The plugin is HSMexpress. It's the same exact CAM (albeit a bit older) that comes with Fusion360. However, this is just the stripped-down version, which is missing a lot of features found in Fusion360.
I tried two different methods. I tried an arbor press. That works. I also put it in my CNC vise, and that worked too. I preferred the CNC vise because the jaws are lined up parallel, so there was less concerned with it going on crooked.
Looks awesome. I'm sure quite a few of us P60 brushless guys would love these. Might be a small product you could make/sell for the combat robotics group.
One day I hope to be able to need something then manufacture it myself like this. I really enjoy watching your videos.
It is a really nice feeling to make your own tools. As always, thanks for watching!
Hi, about 20 years ago I had made the prototype tool to remove the needles on the Atmos clocks from Jeager-Lecoultre. The only difference was the steel body and the pocket was through. The
toolmakers wanted 3 weeks to think and make the plan and it took me 1
hour for the plan, the machining and the heat treatment. I did it with a Aciera F1 milling machine.
Nice. I thought about going all the way through, but the flutes weren't long enough.
You should make a 3D-printed handgrip for over your machined tool thingy. So you can hold it more easily.
Great video! I assume this would work equally well made from hardwood on a drill press, but much more satisfying to CNC it from aluminum.
Possibly. You would have to make sure the grain is oriented the right way. There's quite a bit of force being exerted.
Loved how you walked us thru the processes of designing so well. Nicely done!
Btw you might’ve said it, but how’s the stratasys machine going? Really looking forward to the next part on that.
Thanks! The stratasys is still in the corner, mocking me. I need to get back to it, but I need to finish my 30 pound combat robot by October. I'm ahead of schedule, so I might be able to fit it in while I wait for parts to arrive and such. But I still plan on finishing it for sure.
awesome video as usual
That was very cool.
Love these vids! Keep them up!
Thanks!
👍🏾nicely done
Amazing
Do you sell these?
Can I too get one from you sir?
how to remove pinion gear which has punch hole on it?
Is simple if pinion are not mounted to deep on the motor shaft.
Awesome 👍😮
Thanks 🤗
To put a pinion on a motor: put motor in the freezer, pull it out a few hours later. Heat the pinion with a blow torch. This makes the shaft a little smaller, and the pinion a little larger. You can make the pinion hole a tiny bit smaller than the shaft this way. It is almost impossible to remove the pinion after this because when they both get to room temp, the shaft expands into the pinion, and the pinion shrinks into the shaft. Does anyone know if a pinion remover like this on, would it get it off?
What you're describing is an interference fit. You can heat/cool the parts to get them on as you describe, or use an arbor press. I used a 1 ton arbor press to get the pinion on. This tool removed it just fine.
I really enjoy these videos, although using a CNC was a bit over kill :)
when you have a cnc machine...you always figure out a away to use it :)
Fairly certain that design is the same as the TAMIYA puller. Almost exactly the same.
OH I think you're right! I just googled the tamiya and they DO look almost identical. I'll admit, I hadn't seen the tamiya one before and if I knew it existed, I probably would have just bought it instead.
What solidworks version are you using to get CAM? I have 2010 and I was told there is not a version of SW with a good CAM option. Any thoughts? I use SW and export models to Fusion360 to get CAM but its time consuming when I need to make model changes.
I think 2014? The plugin is HSMexpress. It's the same exact CAM (albeit a bit older) that comes with Fusion360. However, this is just the stripped-down version, which is missing a lot of features found in Fusion360.
Robert Cowan thank you. I only recently subscribed to your channel but so far your videos are great and I look forward to seeing much more from you.
Thanks! Tell are your friends ;-)
Could you have heated the pinion so it expands than just pull it off?
This COULD work, but it's pretty tight. It would still need some force to remove, even when heated.
How do you install the new pinion?
Thanks
I tried two different methods. I tried an arbor press. That works. I also put it in my CNC vise, and that worked too. I preferred the CNC vise because the jaws are lined up parallel, so there was less concerned with it going on crooked.
Thanks!
since I don't have cnc machine i ended up with cutting that fcking pinion with. a drimel 😂😂
whoops on the parallels ;-)
Nice job bearded man ;)
look up elvis ammo. great chan..
7:00 someone gives that dud a vice
3 mistakes in only 6 words, not bad!
you should start selling the gadget.