ASB-19 and HUB-09

Is the HUB-09 supposed to connect to an ASB-19 using just one hole? Does it have a bearing that makes it rotate? Or, is the HUB-09 supposed to connect to the ASB-19 using both holes?

If the latter, I may have found a problem with one of the models.

8-Dale

I haven’t used those, but if you peer at this picture, I think you’ll see that both holes are used.
lynxmotion.com/images/jpg/misc/2dofdd2.jpg
It might just be shadow, but based upon Jim’s quality of work, I highly doubt that he’d have two holes drilled for stability and only end up using one.

As for the bearing, that’s in the upper left of that picture, sandwiched between two ASB-19’s.
It’s the same one that’s used on the waist rotate for the bipeds.

This is what I thought. I know about the BBH - I am using them to design a six wheeled rover with independent suspension.

Thanks for the confirmation. There seems to be problems with at least two of the 3D models I imported from the Solid Works models into Solid Edge.

8-Dale

Would you please elaborate on the problems?

Sure. The first problem involves the ASB-19 and HUB-09. I can not find any way to connect them together using both holes of the HUB-09. I always get relationship conflicts from Solid Edge when I try.

The second problem is with the AHC-03 (Hexagonal Hub). I can not get anything connected to all 6 sides. I can get something to connect to two pair of opposite sides, but I get relationship conflicts when I try to connect anything to the other two sides.

This is why I have been avoiding using these components in designs.

8-Dale

Ok, that’s nothing I can do anything with. I mean it’s a problem with the solid models, and my be specific to the versions you are using, not a problem with the hardware itself. Hopefully someone can help with this…

Correct. If I sounded like I was talking about a hardware problem, I apologize. I always new it was a solid model problem.

8-Dale

Some of the first models on the page don’t have exact hole locations. You will need to modify your models to get your mates to work. Also Jim use a set of numbers for his parts. Locations and diameters. Not all will work in the CAD world, but in real life the parts work great.
I modified the models to work with each other. I think we talked about this in one of the other areas.

Sorry it took so long to reply. I have had many things happen and I have not had time to read thru the post or finish up Jim’s lexan parts. I will be laid up for 6-8 weeks so I plan on finishing them.

So, chek your models, adjust the hole locations to a std pattern for all parts. Jim has posted his hole patterns here at one point.

So far, I have only found problems with two of the Lynxmotion SES models, and I know how to fix one of those (the AHC-03). How would you ever expect anything to mate up if you don’t have exact hole locations and dimensions? You have to use a consistant set of hole dimensions and spacing patterns or nothing will connect.

There would be no sense of using CAD at all if the dimensions and hole placements won’t work with real parts. Companies create CAD models of components every day and have real parts and assemblies manufactured from their data. If it is modeled correctly, it should always work with anything that has the same connecting patterns and hole sizes.

I will bet that if Jim gave me the exact dimensions and hole placements of some of the SES parts, that I could model them exactly. I’ll go so far as to say that if the parts can be modeled with the correct real world dimensions in CAD, then correct and real parts that will work can be manufactured from the CAD data.

I’ve already modeled six of the SES parts using Alibre Design. While I am sure at least one or two of my hole dimensions won’t match the real SES parts exactly (because I do not have that information), I bet I could have working parts manufactured from my CAD drawings that would work with all parts in my modeled set. Every part I have modeled so far mates perfectly with the others I have modeled.

I’ve modeled the AHC-01, AHC-02, AHC-03, ASB-02, ASB-06, and ASB-18 parts so far. I’m working on the ASB-04 now.

I can not modify imported models.

I can not modify the imported models in Alibre Design, but I can extract a lot of useful information from them that I can use in creating my own models. That’s one reason I decided to create my own set of SES part models. This is the only way I can guarantee that all my modeled parts will work with all the others, and I can take full advantage of the features of my CAD package when using them. I am modeling my parts such that the real world hole dimensions and spacing could be plugged in really easily and everything would work together.

8-Dale

If you have modeled all the parts to the drawings Jim sent you, you would find that some of the hole patterns are off. Not by much but enough that the matting of the parts won’t work. Most of what I found were the bolt patterns. I forget what models have the different hole patterns.
Plus, you are importing models, In the 15 years I have been doing this I always check the dimensions to know numbers. I have imported stuff that one times comes thru on the money, then when i do it again is off by a small amount.
I have model and remodeled many of the parts, using the bolt hole pattern Jim gave me. They worked fine for me also.
What I was trying to say is that some of the models where not done correctly and that some didn’t mate up properly. And that they would need to be fixed.
Sorry if it didn’t come across as a modeling problem.

Jim has never sent me any information for modeling parts. All the information I have used to model parts is what I have been able to figure out or reason out from the current set of SES 3D models. I have measured the SES models in either Alibre Design (purchasing) or Solid Edge (30 day trial).

I have been doing a lot of checking and measuring to get dimensions for my set of SES parts. That’s probably one reason (bur definitely not the only one) this is taking me so long. Also, I am pretty new to 3D modeling and CAD so am learning as I go. I love the Alibre Design Training videos, and am 1/3 of the way through CD 2 (of 4) now.

Another reason I am doing my own SES models is to learn more how to use my new CAD software. I am actually using what I learn as I go along.

I’ve had to figure out and guestimate many details, but I think I have been doing pretty well so far. I’ve only actually be doing 3D CAD for a couple months now.

I figured that out when I tried to use the SES AHC-03. With my part, I can attach things to all six sides with no problems. All I did was increase the face dimension to 1.04" square instead of 1.0 " which seems to be what is causing the problems with that model.

It’s OK. :smiley: I just hope I did not come across as being harsh in my post to you as I did not mean to sound that way.

8-Dale

the problem with forums is that the tone of voice and demenaor does not come across.
You will find as most people do the first models they build need to be rebuilt. Then after you build them and move up to the new release of the software there is still a better way of building. Good luck with the models.