With current technology wood glues ( epoxy ) are often stronger than the
wood which allows one to machine short sections and glue them together
for a composite piece that is as strong as a contiguous part. I think
Gene is talented enough to make a live axis for his lathe that would do
a bang up job of making those threads. Going thru the pain to do that is
left as an exercise for the local shop. ;-) Nothing is impossible for
the person that doesn't have to make it work.
Dave
On 2/13/22 10:32 AM, ken.stra...@gmail.com wrote:
Thread milling would be a good approach except that I doubt that Gene has
18-inches of Z-clearance on his small mill to thread the length of his desired
screw plus spindle clearance to mill to the table might be an issue.
-----Original Message-----
From: dave engvall <dengv...@charter.net>
Sent: February 13, 2022 1:20 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] need gcode maker
Other options for buttress. DIN | ANSI .. Either grind a tool out of M2 or
equivalent or go shopping for inserts on the web surplus sites. They won't be
cheap but a bit less hassle.
Single point thread mill??
Lathe sound easier than milling it.
Dave
On 2/13/22 9:37 AM, ken.stra...@gmail.com wrote:
Alternatively one can tilt the stock rather than the head which I
believe is Gene's plan.
-----Original Message-----
From: Robin Szemeti via Emc-users <emc-users@lists.sourceforge.net>
Sent: February 13, 2022 12:26 PM
To: Enhanced Machine Controller (EMC)
<emc-users@lists.sourceforge.net>
Cc: Robin Szemeti <ro...@redpoint.org.uk>
Subject: Re: [Emc-users] need gcode maker
If you can tilt the head at an angle, then something as simple as "G1
X300.00 B30.00" will do it, depending on how you have configured the B axis.
If you can't tilt the head, no amount of GCODE will help you.
I'd just do it on the lathe ...
On Sun, 13 Feb 2022 at 16:54, gene heskett <ghesk...@shentel.net> wrote:
Greetings all;
I have composed a simple butress thread in OpenSCAD, which can save
many formats besides the .stl's I feed cura with. Those choices are
shown in this list:
STL
OFF
WRL
AMF
3MF
DXF
SVG
CSG
PDF
image (png)
The latter being what you see in the attached png images.
What is out there that can make gcode out of one of those formats,
assuming I can do some creative editing to make the bolt code carve
an 18" bolt from a hard maple 2x2 being spun by a B axis as Y slowly
advances with aux tables to make the Y axis long enough on both ends
on my 6040 mill, and I till use a 60 degree engraving mill in it with
a 30 degree wedge under the motor mount to tip it to make the 0
degree load face of the thread with the side of the tool's V. I
intend to make the wedge as a hinge if I can print it rigid enough.
And PETG seems like it could be the Right Stuff.
The target of all this tom-foolery is a wood workbench vise screw.
The 2nd half nut is about half done on my BIQU HX printer as I send this.
So its beginning to look do-able.
I faintly recall that inkscape had a gcode generator plugin at one
time, does anyone have a clue how well it works or if it even exists
today?
Synaptic does not look promising but I installed inscape and friends
anyway, and of coarse pycam, and I just found dxf2gcode, so that got
installed.
Does anyone else have a better idea?
Thanks All;
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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