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Topics - Picengraver

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General Mach Discussion / Jeff Woodcock
« on: February 22, 2019, 06:01:13 AM »
It is with a very heavy heart that I inform you that Jeff Woodcock (PicEngrave.com) passed away suddenly yesterday afternoon late from a sudden heart attack.

Tangent Corner / GeckoDrive Motor Controls
« on: February 25, 2014, 09:40:28 PM »
I can't let this latest example of customer service from Gecko Inc. go by without public acknowledgement.

I had three bad Gecko stepper motor drivers, all out of warranty (in fact two were about 9 years old), so I contacted Gecko to inquire about inspection and repair.  Following Gecko's instructions, I sent them in about three weeks ago, along with my credit card info to cover fully anticipated repair and return shipping costs.

Today, to my very pleasant surprise, I received a no-charge email invoice showing that they were being returned in working condition.  All three had been rendered inoperative due to my wiring mistakes, and all three required replacement parts.

So, a very special thank you to Mr. Mariss Freimanis and his Gecko staff, for their outstanding service and unbeatable products.

With Sincere Appreciation,
John Champlain


Promote and discuss your product / PicEngrave Pro 4 Upgrade
« on: December 01, 2013, 06:25:19 AM »
PicEngrave Pro 4 +Laser, image engraving software, has been upgraded to version 4.2.4.  It now supports rotary (wrapped) engraving for both spindle and laser engraving.  PEP4 has been specifically written and developed for Mach3.

Available exclusively on eBay   http://www.ebay.com/itm/200991363667?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Additional info here: www.picengrave.com

Gallery : http://www.picengrave.com/gallery.html

Thanks for viewing,
John Champlain

While fine tuning the focus of a new lens for my laser diode the other day, I decided to test how fine a spot the lens was focusing too.  This is a dried pinto bean with the maximum height of the letters at .025 inches / .635 mm high.  I think I could have done even smaller engraving if I had reduced the laser power more, but I ran out of play time.  :D


Lasered at 27 ipm, 1.4 amps diode current.

Dithered with PicDither - Gcode with PicEngrave Pro 4.

John Champlain

General Mach Discussion / Previous Versions
« on: February 22, 2012, 02:01:43 PM »
I'm having some error message problems with Ver. 3.043.058 and Mach3 shuts down and want to send a report to MS.  I want to revert to Ver. 3.043.057 (need M10/M11 commands), but it does not show up on the FTP site.  In fact, lots of later development versions seem to not be there.

Am I missing something?

Regards All,
John Champlain

Show"N"Tell ( Your Machines) / My Laser Butterfly
« on: December 24, 2011, 10:08:48 AM »
I tried several times to post this to your "Laser" thread, but blocked at each attempt, hence this new thread.
Thanks to Dave, here's my version of his butterfly (http://www.machsupport.com/forum/index.php/topic,15111.0.html),
and many thanks are due to you as well for showing me the way in some of your previous posts and on your web site.

I burned it from 1/16 inch hobby basswood at 4 ipm using a 445nm laser diode with my own design constant current driver
set at about 1.1 amps.  I had to burn it from both sides to get clean parts release, but almost made it through from just
the one side.

With my setup, I am able to burn various woods at up to about 30 ipm, but I can not do gray scale pictures with Art's plug-in
(need more laser power for that).  After the first of the year, I may set up another 445 diode at max spec power to see if
it gives better results.

For other readers who may be thinking of trying a laser diode, I use the C axis direction pin with +0.0005 inch as laser off and -0.0005 on.
This greatly minimizes the "dots" at the start of burn lines.  I pre-focus the laser to table surface and use the Z axis to adjust
for different wood thickness.  It was a PITA trying to reset the lens frequently.

Happy Holidays,
John Champlain

Machscreen Screen Designer / Trigger Screen LED
« on: November 07, 2011, 05:44:15 PM »
I have a small machine using a laser diode for wood burning.  For safety reasons, I have the machine fully enclosed in a box when running.  I trigger the laser diode using the C axis direction pin.

I have designed a custom screen for this machine, and I would like to have an on-screen LED light up (or change color) when the diode is triggered on by gcode.

So far I can not get an LED to light in sync with the diode.  Is it possible?

Thank You,
John Champlain



General Mach Discussion / Go to Zero Function
« on: June 11, 2010, 12:55:10 PM »
My router (a popular model) is made from MDF and the XY is not easy to square up, so I use a formula [y=y-(x*.007)] in my setup, and this works well for me (I know it should be squared up mechanically, but for now it is what it is).

However, with the formula active, if I use the "Go to Zero" button on the main screen, the X axis always returns to a negative value, but the X DRO resets to zero (the Y axis is OK).   I can work around this with a new button, but is another solution possible?

John Champlain

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