supertruper1988

Train Wheel Size Naming

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Whoops, I didn't mean to spark controversy. Adding the minimum spacing to the chart with a clarification that some wheels of the given size might need greater spacing would be good.

I think the number system is great, and I think it should be based on plates. While rounding up would make more sense to me, I don't think it will be much of an issue since it will probably only impact #10 and that will likely always be a specialty size. Furthermore, if you add the minimum spacing to the table there is less need for a user to learn the meaning, the numbers will simply be a name that clearly conveys #7 is larger than #5. Only the power users will think in terms of plates because that information is almost redundant now (and that is a good thing).

 

16 hours ago, coaster said:

The BBB wheels do not allow for this though, so you would have a greater minimum spacing requirement. 

I'm pretty sure the BBB L wheels nest with F-B only needing 4 studs center to center. That was one of the key features to allow x-6-x and x-8-x locos to handle R40 track.

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On 1/15/2021 at 9:26 AM, zephyr1934 said:

I'm pretty sure the BBB L wheels nest with F-B only needing 4 studs center to center. That was one of the key features to allow x-6-x and x-8-x locos to handle R40 track.

You may be right.  I only have Ben's XL wheels, and they do not, so I guess I figured the others were that way as well.

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5 minutes ago, coaster said:

You may be right.  I only have Ben's XL wheels, and they do not, so I guess I figured the others were that way as well.

Yes, the BBB XL do not nest, presumably because at integer stud spacing they do not need to. You cannot have 4 studs center to center for B-F XL, and at 5 studs there is room to fit the flange next to the blind rather than behind. So while 4.5 stud spacing would work in theory, BBB XL do not allow for it.

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On 1/12/2021 at 8:51 AM, supertruper1988 said:

Wheel%20Sizes%20Final%20with%20Scales.pn

@supertruper1988

One question for the fellow "rest of the world" who uses the metric system - would it be possible to add the scaled diameters (1:38 and 1:48) in metric dimensions as well? Would make the chart a lot mor useful in my opinion! :wink:

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13 hours ago, ScotNick said:

@supertruper1988

One question for the fellow "rest of the world" who uses the metric system - would it be possible to add the scaled diameters (1:38 and 1:48) in metric dimensions as well? Would make the chart a lot mor useful in my opinion! :wink:

what scale? the two listed are common in the US because they are based on US train dimensions. 

 

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Doesn't change the fact that converting is tedious if you are used to one system. Having all necessary info in one picture would help a lot.

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3 hours ago, supertruper1988 said:

what scale? the two listed are common in the US because they are based on US train dimensions. 

 

I don't think there's a common scale like 1:48 or 1:38 here in Europe. Most people do stick to either 7 wide or 8 wide, but as there are different lauding gauges thoughout Europe I think this is a bit difficult!

However I'm sure most folks build inbetween 1:38 and 1:48, so just adding the metric dimensions to what the drivers relate to in those scales would help a lot as it already gives a rough idea for which driver to choose.

I for example build roughly in 1:42 scale, and right now the chart wouldn't help out a lot. But if the metric dimensions for 1:38 and 1:48 would be added as well I could easily approximate what size the driver would relate to. Does this point make sense?

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22 hours ago, ScotNick said:

One question for the fellow "rest of the world" who uses the metric system - would it be possible to add the scaled diameters (1:38 and 1:48) in metric dimensions as well? Would make the chart a lot mor useful in my opinion! :wink:

I think ScotNick is just asking to add the metric equivalent, so the bottom row would read something like:

 

64.8" (1.65 m) |   60" (1.52 m) |   ...

Are European drivers typically measured in m or mm?

 

Also, a few of the cells in the bottom row are missing the double quotes denoting inches (#13, #11, #6)

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Apologies for boosting an old thread.

I notice that the table shows the tread diameter in both mm and plates. How much extra should I allow for the wheel flanges to permit clearance against bodywork, etc? Is it 1 plate on each side (2 plates in total) or does the flange depth vary? 

Also, on a not unrelated note, is anyone out there working on .dat files for the various sizes to permit them to be imported into your digital building software of choice? I know that some wheels are already available to download (e.g. BBB) but I would be interested in other sizes also.

Thanks.

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3 hours ago, Hod Carrier said:

Apologies for boosting an old thread.

I notice that the table shows the tread diameter in both mm and plates. How much extra should I allow for the wheel flanges to permit clearance against bodywork, etc? Is it 1 plate on each side (2 plates in total) or does the flange depth vary? 

Also, on a not unrelated note, is anyone out there working on .dat files for the various sizes to permit them to be imported into your digital building software of choice? I know that some wheels are already available to download (e.g. BBB) but I would be interested in other sizes also.

Thanks.

The wheel flanges are 1 plate tall, so you are correct, add 2 plates/6.4mm in diameter.  @supertruper1988 is working on the .dat files, but there are lot of them, so it's just taking a bit to get it all together.  Plus, he's in the middle of moving across the country.

I would help with it, but I'm dumb and don't know how to properly build the .dat file.  My method is to export the CAD model into Part Designer and then export to Stud.io, but the file sizes are comparatively massive.

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@ScotNick @coaster

Thank you gentlemen for your swift and informative replies.

The L-Gauge website page isn't fully up to date with regard to the offerings currently on the market, nor does it reflect the information contained within this thread, and doesn't actually mention the size I'm particularly interested in. However, it is a very good resource. As for the .dat files, I am content to wait and see what @supertruper1988 comes up with when he gets the time to complete the project. Hopefully he is going to include sizes smaller than #5, but clearly he has much more pressing priorities to attend to first, and it's right that what is a hobby activity needs to wait.

Thanks again. 

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