I have the peck drilling apps running. Home page https://popsshebang.github.io/PDG/
Blurb from home page:
PDG - Peck Drilling Gcode creator generates a drilling cycle
program. Single and multiple holes are supported.
The PDG app is written in javascript and runs locally in your browser.
The output program uses standard gCodes.
You enter the drilling parameters such as drill diameter, hole
depth, peck depth, start height, retract height, Inch/Metric
etc. From the entered parameters the peck drilling cycle is
created. The gCode program file can then be saved as a
download to your computer.
If you are drilling through thin material, there is an option to
do single pass hole drilling.
(The program is actually run locally on your computer, but
download is the mechanism used to save the gcode to a file.)
PDG app has been tested with:
G.Chrome 62.0 Firefox 57.01 Opera 49.0 Seamonkey 2.49.1
OSX Safari 11.01
(fwiw also works in G.Chrome on iphone/pad)
(IE - not so much)
There are two flavors of PDG. dxfPDG and ezpzPDG.
dxfPDG
dxfPDG reads the hole locations from a 2D DXF file. The
locations are processed and the gCode generated. Besides the
benefits and speed of drilling vs. milling a hole, dxfPGD should
especially useful for projects with a large number of holes. Such
as cribbage boards, vacuum fixtures, wasteboards, PCB’s etc.
ezpzPDG
Use ezpzPDG when you need just a few holes and already know
the hole locations. ezpzPDG lets you enter up to 10 XY pair
hole co-ordinates.
Just a heads up, the hole locations output from LibreCad are in the
order they were added to the drawing. Future update to app might
give option to short the holes. Drilling the next closest hole.