{"id":16499,"date":"2020-10-12T21:07:12","date_gmt":"2020-10-13T01:07:12","guid":{"rendered":"https:\/\/scruss.com\/blog\/?p=16499"},"modified":"2024-12-04T07:14:00","modified_gmt":"2024-12-04T12:14:00","slug":"memo-to-self-trivial-hp-gl-%e2%86%92-gcode-converter","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2020\/10\/12\/memo-to-self-trivial-hp-gl-%e2%86%92-gcode-converter\/","title":{"rendered":"memo to self: trivial HP-GL \u2192 GCode converter"},"content":{"rendered":"\n
\"an
what the sample files render<\/figcaption><\/figure>\n\n\n\n

Updated<\/strong>: here’s a better one. Who knew that hp2xx had a gcode mode built in?<\/p>\n\n\n

\nhp2xx -t -m nc -z 0 -Z 5 -f - file.hpgl | grep -v '^M0.' | sed 's\/^G01\/G0\/;' | awk 'BEGIN {print "G21\\nG90";} END {print "G0 Z5";} {print;}' > file.gcode\n<\/pre><\/div>\n\n\n
Aah, no: forget the stuff below.<\/p>\n\n\n
\nhp2xx -t -m hpgl -f - phweeen.hpgl | sed 's\/;\/\\n\/g;' | grep -v '^SP' | grep -v PA | awk -F, 'BEGIN {print "G0X0Y0Z5";} \/^PU\/ {sub(\/PU\/, "", $1); printf("G0Z5\\nG0X%fY%f\\n", $1\/40.0, $2\/40.0);} \/^PD\/ {sub(\/PD\/, "", $1); printf("G0Z0\\nG0X%fY%fZ0\\n", $1\/40.0, $2\/40.0);} END {print "G0Z5";}' > ~\/Desktop\/phweeen.gcode\n<\/pre><\/div>\n\n\n
  1. likely targets a MidTBot<\/a> a little too much<\/li>
  2. ignores pen changes<\/li>
  3. assumes pen up means tool Z=5 and pen down means tool Z=0<\/li>
  4. only understands PU<\/strong> (move) and PD<\/strong> (draw) commands<\/li>
  5. requires hp2xx<\/li>
  6. tested with trivially few sample files exported as HP-GL from Inkscape<\/li>
  7. doesn’t care about paper size; your plotter does, though.<\/li><\/ol>\n\n\n\n
    hpgl_gcode_samples<\/a>Download<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"
    Updated: here’s a better one. Who knew that hp2xx had a gcode mode built in? Aah, no: forget the stuff below. likely targets a MidTBot a little too much ignores pen changes assumes pen up means tool Z=5 and pen down means tool Z=0 only understands PU (move) and PD (draw) commands requires hp2xx tested […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2],"tags":[],"class_list":["post-16499","post","type-post","status-publish","format-standard","hentry","category-goatee-stroking-musing-or-something"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-4i7","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=16499"}],"version-history":[{"count":4,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16499\/revisions"}],"predecessor-version":[{"id":17678,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16499\/revisions\/17678"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=16499"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=16499"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=16499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}