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bugfix

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This commit is contained in:
Adrian Mariano 2022-09-21 16:13:26 -04:00
parent 2daaa4b5b2
commit 0983edcd98
1 changed files with 9 additions and 6 deletions
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15
screws.scad
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@ -409,11 +409,12 @@ module screw(spec, head, drive, thread, drive_size,
atype="screw",anchor=BOTTOM, spin=0, orient=UP,
_shoulder_diam=0, _shoulder_len=0,
_internal=false, _counterbore=0)
{ d=echo(undersize=undersize, shaft_undersize=shaft_undersize, head_undersize=head_undersize);
{ d=echo(undersize=undersize, shaft_undersize=shaft_undersize, head_undersize=head_undersize)
echo(test=[head,drive,drive_size], thread=thread);
dummyA=assert(is_def(undersize) || num_defined([shaft_undersize, head_undersize])==0,
"Cannot combine \"undersize\" with other more specific undersize parameters")
assert(is_undef(undersize) || is_num(undersize) || is_vector(undersize,2), "Undersize must be a scalar or 2-vector")
assert(!is_struct(spec) || (num_defined([head,drive,drive_size])==0 && (thread=="none" || thread==0)),
assert(!is_struct(spec) || (num_defined([head,drive,drive_size])==0 && (is_undef(thread) || thread=="none" || thread==0)),
"With screw struct, \"head\", \"drive\", \"drive_size\" and \"thread\" are not allowed");
undersize = is_undef(undersize) ? undersize
: is_num(undersize) ? [undersize,undersize]
@ -618,7 +619,7 @@ module screw(spec, head, drive, thread, drive_size,
// diff()
// cuboid(20)
// attach(TOP)
// down(4)screw_hole("1/4-20,.5",head="socket",counterbore=5,anchor=TOP);
// screw_hole("1/4-20,.5",head="socket",counterbore=5,anchor=TOP);
// Example: Clearance hole for flathead
// diff()
// cuboid(20)
@ -800,7 +801,7 @@ module screw_hole(spec, head, thread=false, oversize, hole_oversize, head_oversi
// ---
// thread_len = length of threads
// tolerance = screw tolerance. Determines actual screw thread geometry based on nominal sizing. See [tolerance](#subsection-tolerance). Default is "2A" for UTS and "6g" for ISO.
// drive = drive type. See [screw heads](#subsection-screw-heads) Default: "hex"
// drive = drive type. See [screw heads](#subsection-screw-heads) set to "none" for no drive. Default: "hex"
// drive_size = size of the drive recess
// thread = thread type or specification. See [screw pitch](#subsection-standard-screw-pitch). Default: "coarse"
// spec = screw specification to define the thread size
@ -837,7 +838,9 @@ module screw_hole(spec, head, thread=false, oversize, hole_oversize, head_oversi
// Example: Another custom example:
// shoulder_screw("M6", 9.3, length=17, thread_len=8, head_size=14, head="button", drive="torx");
// Example: Threadless
// shoulder_screw("iso,10,threads=0);
// shoulder_screw("iso",10,length=15,thread=0);
// Example: No drive recess
// shoulder_screw("iso",10,length=15,drive="none");
// Example: Headless
// shoulder_screw("iso", 16, length=20, head="none");
// Example: Changing head height
@ -857,7 +860,7 @@ module shoulder_screw(s,d,length,head, thread_len, tolerance, head_size, drive,
d2=assert(systemOK || infoOK, "System must be \"ISO\", \"UTS\", \"English\" or \"metric\" or a valid screw specification string")
assert(!is_struct(s) || num_defined([drive, drive_size, thread, head])==0,
"With screw struct, \"head\", \"drive\", \"drive_size\" and \"thread\" are not allowed");
drive = default(drive,"hex");
drive = drive=="none" ? undef : default(drive,"hex");
thread = default(thread,"coarse");
head = default(head, "socket");
usersize = systemOK ? undef : s;