DCC Speed Matching Using JMRI and Accutrack II Speedometer

[@edcvgp9]

One of the best and clearest tutorials on speed matching i have seen, outstanding great job.

[@KingTrump2024]

This is by far the best and most comprehensive speed matching how to video out there to date. Awesome job man, and thanks so much for this.

[@17leeward]

Hi from the UK. Found your upload via a link in the latest Model Railroad Hobbyist newsletter. Just what I wanted as I'm about to start speed matching. Thanks Lee

[@willparsons32]

Intermountain now installs LOCSOUND Decoders. Not sure what they've been running in the past but from the looks of things, ALOT of other DCC locomotives are all switching to the LOCSOUND decoder. I wish the ALL manufactures would switch to LOCSOUND... What a wonderful world it would be!!!

[@railfan-rr1tu]

Yes for sure LOKSOUNDare the best

[@samwhite3504]

Great video. By far the best, clearest and most helpful video on speed matching. Thank you.

[@mjmonjure]

Excellent vid. This is outstanding and shows you put a lot of thought and research into the processes for speed matching. Now I have to go buy an Accutrack II :-)

[@Alexander_Sth]

Please, upload again Speed/Throttle/Step/Index conversion chart and CV5 reduction calculator

[@FredE528]

Excellent video! This will help me a lot. 👍👍👍

[@warrenbackhouse9447]

What a great tutorial. May I have a copy of your Excel spreadsheet pleas?

[@cincinnatiwest8988]

The link for the chart is dead. :-(

[@samwhite3504]

What other popular manufacturers use straight line motor? For example Genesis and Athearn are popular and so Atlas. How would I determine what type of motor they use? Thank you

[@trevorsteward9725]

can you please send me the link for the Speed/Throttle/Step/Index conversion chart and CV5 reduction calculator: as the link does not work. Thanks in Advance

[@ruaslacker]

I just found your video, looking for the CV5 reduction Calculator. Is it still up on the web ?

[@csxt6080]

Is the spreadsheet file still available? The link is not working.

[@normandtremblay1285]

Hi, what about the Athern Genesis motor? are they strait line Log or Exponential?

[@csxbaltimoresubdivision7746]

great video it will come in handy when I speed match mine fleet.

[@fwwrmodeler]

Having issues downloading the two file. I'm only seeing 1 the speed match file.

[@neilbuilds7475]

There is only one file. The excel file contains the two spreadsheets

[@steamy1225]

Nice tutorial . Thanks

[@markgoodrich941]

Nice job. Thanks so much.

[@sk3802]

excellent video thanks

[@SheltonDCruz]

Can we still acquire the spreadsheet?

[@SPSD458853]

I figured is formula out just I don't know how to set up an entire spreadsheet like he did but I think you don't need to spreadsheet and just a piece of paper and a calculator. Basically its top speed desired divided by models actual top speed (50/55=90.9%), take that result and divide it by 255 (90.9% or .909/255=231.8) so you'd set it at CV5 max at 232. I hope that helps. Unfortunately the drop box link is dead but this should help you within reason.

[@SheltonDCruz]

@@SPSD458853 Thanks alot!

[@484Northern]

@@SPSD458853 hoping this finds its way to you. I am going over your math to try and recreate the spreadsheet. I get the first part , 50/55=90.9% but 0.909/255 = .00356471 not 231.8. What am I missing?

[@484Northern]

DUH!!! Never Mind. It actually is Multiply by not divided by!!!

[@chrislef5045]

Hi. Great video. Would you hapen to know the max speed out of the box, of the Scale Trains GEVO Tier 4 with sound? I think you and I got them about the same time, August 2017... I'm wondering if I accidentally changed a decoder setting, as it tops out at 82km/h (about 48mph) but people seem to have toem going faster... My speed matching on Locs is to 100km/h (60mph)... -Chris

[@DBRXCustomRailroadModels]

About 68-69 scale mph if I recall correctly.

[@chrislef5045]

Thanks. I need to figure out where in the decoder it has been reduced. Like perhaps a 'locked in' shunting speed... not sure. -Chris

[@smokinbigdavebbqandtrains]

Great video! I was going to use the speed table method but will try this first. I did not buy a speedometer, I built one that Joe G shared on his channel. It's Arduino based with a few sensors and a display - very simple to build and use/modify to fit your needs. If interested in the code, send me an email - address is viewable on my channel page - Smokin Big Dave BBQ and Trains

[@nathanjoseph2358]

Thank you. This was one of the best explanation and demonstration of speed matching. Well done!

[@bumpingpost]

best explanation of speed matching... VERY well done & thorough! thank you

[@What_If_We_Tried]

Fantastic tutorial! Really appreciate the time you put into this video.

[@angelamayne8017]

Great video, What do you do with the back EMF and forward/reverse trim settings when starting the process?

[@rockhead4534]

What type of speed curve are the athearn locomotives? Straight or curved?

[@eXtremeFX2010]

I just purchased an Accutrack II Speedometer...has not arrived yet... but definitely bookmarking this video in my Playlist. I will have to take all my other locomotives off my main though or buy some ez-track oval to setup a speed match. Thanks for this... Are you still model railroading? Do not see many recent videos.

[@neilbuilds7475]

Great video. I really like the spreadsheets. Thanks for making them available.

[@tamamman]

Very well put video! great job!

[@TrashMan2008]

Good video keep up the good work

[@fvittoria]

What is the link to download the spreadsheet?

[@DBRXCustomRailroadModels]

goo.gl/mW8SHV

[@fvittoria]

Thanks!

[@ryry17354]

Any ideas on speed matching with the throttler going to 126 for 128 speed table?

[@DBRXCustomRailroadModels]

As in 126 scale mph? Most HO scale models are not capable of going that fast. You can speed match each step for half a mile for a top speed of 63.

[@ryry17354]

@@DBRXCustomRailroadModelsSorry. Talking about the throttle % going up to 126% instead of 100%. On your chart. You have it going from 100,90,80 and so on. Any idea how to convert your chart for an 126% throttle?

[@DBRXCustomRailroadModels]

Because my throttle is set to display percentage. If you want it to display speed steps then change it in the settings.

[@ryry17354]

@@DBRXCustomRailroadModels ah ok, well I have an Iphone and it looks like I can't change the throttle from speed step to percentage. Using WiThrottle. But thank you.