Several things that you should do to start.
Note that Context Help is available at most points. Either press Using Search for Help on .. under Help and find the topic 'Help in Font Maker'. This will tell you how to use the exclusive 'Copy Topic' feature to compile your own Help hardcopy.
Run through the Tutorial on producing TrueType fonts and take note of TrueType Rules. Then click Help, Import, Import PCX to Logo and read the PCX General and Multicharacter Read Topics. Multicharacter Read will chop the logo up into tiles,
First scan the Logo into a Mono (black/white) PCX file no more than 800 x 800 pixels.
Reading the PCX
Set up for Read by selecting Import from the main menu, then Import PCX to Logo then select the PCX file to Open. Then click Multicharacter Read, the PCX file will be analysed and suggestions made for the number of horizontal and vertical tiles, you can make some changes.
The resultant file will be saved as a .DVL (internal format). You can inspect this font with Bitmap - Show from the main menu. Try to ensure that the tiles look OK. It has been found that a tile containing only a small image can cause problems. Re-read the PCX using different tiling parameters to improve the results.
Converting to TrueType
The DVL file must be converted to the TBF (internal format). Using the TrueType option on the front menu and then Draw from DVL. Select File and choose New to start a new TBF file, then with a click on Template open the DVL file, you will be asked for a scale, this is for possible adjustment, leave at 100% for the moment. Finally select a character with NewCharacter.
You will now see the Design screen with the bitmap font superimposed, together with blue margins set according the escapement on Read. You have two options. You can trace the character using the mouse in exactly the same as the Vector Design in the Tutorial. Or you can use Auto-Trace, position the mouse cursor just above a line, or contour, to be Traced and press 'T'. Make sure that you Trace every contour, an 'O' has two, one inside and one outside. Note the TrueType Rules, the outside MUST go clockwise and the inside MUST go anti-clockwise. The Auto-Trace always starts left to right so placing the cursor just above a line it will be correct.
If a font is reverse, white on black, then the procedure is much the same. Ensure that the outline is copied, the Black bit and the the inside contours, don't miss little things like the top triangle of the A.
Also ensure that the margins are set correctly, as any unwanted gaps will show as white lines between the letters. As a guide the two margins should be set so that they exactly under the edges of the character, if they are then the blue margins will be obscured by the red character outline.
Correcting a TBF
The trace will have produced a TBF font with two possible problems. It may have too many dots, if it can't identify a straight line it has to do this. Vertical and horizontal lines should be OK as will 45 degree and most 30 and 60. This can be done with the Delete button on the toolbar, or there is a hot key Next, the positions will be set as ON line, making curves from short straight lines. Making a position OFF curve will create curves that will be scaleable, similar to Bezier curves. There is a button for this too, but there is another hot key for this There is a further hot key to be used if there are many points on a straight line such as the sides of an A. Select a point by using the mouse pointer then the Logic NOT key (above TAB) then select another point with the mouse and the DEL key. You will get a warning then all the points BETWEEN will be deleted.
Now use Export to Build the TTF file.