Spice Simulation not accepting models from directory.
Mike, I downloaded the files above from Panpan, and ran your simulation to show what it looks like with a DC sweep of the input ... note that the schematic calls for a model called LM317HT but the model itself calls it LM317 ... they have to match, so i changed it to LM317 in both places ... i also added names to the various signals in the sch ... and since the potentiometer part requires a .PARAM statement, i added that as well
This is the naming i was talking about:
The filename, the model name, and the actual model name in the file all should match up .. in your case the name had "HT" at the end (came from the filename) but the model itself did not have it, so that would not work ... i fixed as shown
Notice also the .PARAM statement .. it is simply a text object, and inside it you write .PARAM on the first line, then you can have one or more lines with variable=value, where variable is the name of a variable you want accessible to models, and value is the value
In your case, this potentiometer model has two variables, and so you need to set those values
Here is the model you are using within that POT part:
********************************************
* Autodesk EAGLE - Spice Model File
* Date: 9/25/17
* Variable resistor PIN1 ---/\/\/\/\--- PIN2
* |
* PIN3
********************************************
.subckt POT 1 2 3
R1 1 3 {val*var/100}
R2 3 2 {val-val*var/100}
.ends POT
