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Am I Doing It Right Guys?

cbale2000

By: cbale2000
New: 01-20-2018 12:58 PM
Updated: 01-20-2018 12:58 PM
Views: 2488 times


Am I Doing It Right Guys?

Saw lots of 775Pro Drive and MiniCIM Drive threads over past few months, so when the AM DeCIMate was released I thought to myself "Why not both"?

Thoughts?

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01-20-2018 03:23 PM

Type


Unread Re: pic: Am I Doing It Right Guys?

Did you design that cover for the DeCIMate gears or is that somewhere on AndyMark's website?



01-20-2018 04:07 PM

cbale2000


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by Type View Post
Did you design that cover for the DeCIMate gears or is that somewhere on AndyMark's website?
My design, I figured with the amount of grease required to keep the gears lubricated it would be helpful. As it turned out, I had to pack the gearboxes with grease (Red Tacky) several times, even with the covers on, just to keep the gears from throwing the grease off the gears immediately.

I'd be happy to upload the model somewhere if people are interested.



01-20-2018 04:47 PM

Type


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by cbale2000 View Post
My design, I figured with the amount of grease required to keep the gears lubricated it would be helpful. As it turned out, I had to pack the gearboxes with grease (Red Tacky) several times, even with the covers on, just to keep the gears from throwing the grease off the gears immediately.

I'd be happy to upload the model somewhere if people are interested.
I would be interested in using the cover if you want to share the CAD. My team is looking at using these gearboxes and I couldn't find any cover pre-designed (even though the assembly directions mention one).



01-20-2018 06:00 PM

cbale2000


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by Type View Post
I would be interested in using the cover if you want to share the CAD. My team is looking at using these gearboxes and I couldn't find any cover pre-designed (even though the assembly directions mention one).
Here you go:

https://www.thingiverse.com/thing:2763971



01-20-2018 07:18 PM

Bkeeneykid


Unread Re: pic: Am I Doing It Right Guys?

I find it interesting that the DeCIMate Assembly Guide explicitly mentions a 3D-Printed case on page 5, but I find no mention of this on AM's website. Even still, this is awesome!



01-20-2018 07:30 PM

cbale2000


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by Bkeeneykid View Post
I find it interesting that the DeCIMate Assembly Guide explicitly mentions a 3D-Printed case on page 5, but I find no mention of this on AM's website. Even still, this is awesome!
Interesting, we bought ours already assembled so I never bothered to look at the guide. I like how the one shown in the guide holds the spacers in place, but I think I still prefer the overall shape of mine tbh.



01-21-2018 01:36 AM

EricH


Unread Re: pic: Am I Doing It Right Guys?

[] You're not doing it right. There should be a 775Pro on one slot of the DeCIMate instead of the Redline. The other slot should have a Redline.[/]

I kid, I kid, that's definitely an interesting configuration. If you do end up using that be sure to post back with how it held up!



01-21-2018 01:59 AM

NathanNFM


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by Type View Post
I would be interested in using the cover if you want to share the CAD. My team is looking at using these gearboxes and I couldn't find any cover pre-designed (even though the assembly directions mention one).
Sorry about that! For now, here is the official AndyMark one I designed. We should have it on a page in the 3D printing section of the website up soon.

https://www.thingiverse.com/thing:2764280



01-21-2018 02:20 AM

Type


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by NathanNFM View Post
Sorry about that! For now, here is the official AndyMark one I designed. We should have it on a page in the 3D printing section of the website up soon.

https://www.thingiverse.com/thing:2764280
Thank you! I was just looking through it for once my team's DeCIMates come and noticed there wasn't a link. I definetly like the idea of having a cover over the gears to keep grease in and dirt out.



01-21-2018 12:04 PM

cbale2000


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by EricH View Post
[] You're not doing it right. There should be a 775Pro on one slot of the DeCIMate instead of the Redline. The other slot should have a Redline.[/]

I kid, I kid, that's definitely an interesting configuration. If you do end up using that be sure to post back with how it held up!
Heh, not a bad idea actually...

Honestly I would have preferred using 775Pros (simply because Redlines are still somewhat unproven), but we didn't have any way to press-fit the pinion gears onto them in our shop so it was easier to just used the pre-assembled gearboxes from AndyMark.


I definitely plan to use these in this configuration on our robot, the real question is for how long. I am a little concerned about wear on the DeCIMate gears, we did the recommended 30 minute no-lube run-in and now the gears seem to have quite a bit of backlash when changing directions. I'm hoping this is expected behavior and that the lubricant we added will prevent further wear.



01-21-2018 01:35 PM

Michael Hill


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by EricH View Post
[] You're not doing it right. There should be a 775Pro on one slot of the DeCIMate instead of the Redline. The other slot should have a Redline.[/]
Also, change one of the MiniCIMs to a regular CIM.



01-21-2018 05:25 PM

EricH


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by Michael Hill View Post
Also, change one of the MiniCIMs to a regular CIM.
Would that set a record for "most motor types in one gearbox"?



01-21-2018 05:29 PM

Type


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by cbale2000 View Post
Heh, not a bad idea actually...

Honestly I would have preferred using 775Pros (simply because Redlines are still somewhat unproven), but we didn't have any way to press-fit the pinion gears onto them in our shop so it was easier to just used the pre-assembled gearboxes from AndyMark.
My team is using the 775 Pros since the Redlines are new, we just use a vise usually to press fit them, thats what we did last year with pulleys.



01-21-2018 05:29 PM

bobbysq


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by EricH View Post
Would that set a record for "most motor types in one gearbox"?
It almost certainly would if they also changed the shifter to a servo instead of a piston.



01-22-2018 09:17 AM

JamesCH95


Unread Re: pic: Am I Doing It Right Guys?

Everything old becomes new again:

https://www.youtube.com/watch?v=h3l6Xqts4to



01-22-2018 09:22 AM

jnicho15


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by bobbysq View Post
It almost certainly would if they also changed the shifter to a servo instead of a piston.
Nah man, door latch actuator.



01-22-2018 10:02 AM

cbale2000


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by jnicho15 View Post
Nah man, door latch actuator.
I have actually been wondering about using these, but unless you're using a solenoid-type actuator (which have limited power under the solenoid rules and might not be strong enough), wouldn't you run into issues stalling the motor?



01-23-2018 09:10 AM

ratdude747


Unread Re: pic: Am I Doing It Right Guys?

Quote:
Originally Posted by cbale2000 View Post
I have actually been wondering about using these, but unless you're using a solenoid-type actuator (which have limited power under the solenoid rules and might not be strong enough), wouldn't you run into issues stalling the motor?
Yes unless the actuator had it's own detent built in or you added your own detent. Every lock actuator I've seen had no detent (plunger was free-moving when not powered) as they used the door lock mechanism itself as the detent.



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