🚀 go-pugleaf

I have been using METAFONT to generate various fonts for the Atari
TeX previewer SHOWDVI.TTP. I have hit a problem and with only very limited
knowledge of METAFONT, I would appreciate any suggestions as to the cause
of the fault. I have been able to generate the 144gf and 249gf sizes but
when I try to generate the 173gf, this is what I get.

This is METAFONT, C Version 1.5 (no base preloaded)
** \mode=catari;\mag=1.802;input cmss10
(.\cmss10.mf (.\cmbase.mf) (.\roman.mf (.\romanu.mf [65] [66] [67] [68]
[69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83]
[84] [85] [86] [87] [88] [89] [90]) (.\romanl.mf [97] [98] [99] [100] [101]
[102] [103] [104] [105] [106] [107] [108] [109] [110] [111] [112] [113]
[114] [115] [116] [117] [118] [119] [120] [121] [122]) (.\greeku.mf [0]
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10]) (.\romand.mf [48] [49] [50] [51]
[52] [53] [54] [55] [56] [57]) (.\romanp.mf [36] [38] [63] [62]) (.\romspl.mf
[16] [17] [25]
! bad pos.
<to be read again>
                   ;
pos->...XPR3)<=currentbreadth:errmessage"bad pos";
                                                  fi.fi(x(SUFFIX2)r-x(SUFFIX...
l.84 pickup tiny.nib; pos11(right_curve,0)
                                          ;
? [26]
! bad pos.
<to be read again>
                   ;
pos->...XPR3)<=currentbreadth:errmessage"bad pos";
                                                  fi.fi(x(SUFFIX2)r-x(SUFFIX...
l.138 pickup tiny.nib; pos11(right_curve,0)
                                           ;
?


Also does any one have the neccessary .MF file for generating the fonts
for the Atari SLM804. Someone posted me a .MF file previously but it
required a couple of files that I've not been able to find - ie. PLAIN.MF
version 1.0a and the corresponding CMBASE.MF - does anyone have them.
The problem relates (I think) to the Atari laser being 'write-white'


% stlaser mode: to generate fonts for the Atari ST laser printer SLM804
mode_def stlaser =
 proofing:=0;                  % no, we're not making proofs
 fontmaking:=1;                % yes, we are making a font
 tracingtitles:=0;             % no, don't show titles at all
 pixels_per_inch:=300;         % that's pretty low resolution
 blacker:=-.25;                % less blackness
 fillin:=.5;                   % compensate for diagonal fillin
 o_correction:=0;              % normal overshoot
 write_white_engine:=true;     % You have to use the modified PLAIN.MF V1.0a
                               % and the corresponding CMBASE.MF, which has
                               % to be modified according to TUGboat 1/1987)
 enddef;


Thanks for any help

Steve C.
xuum24