Saturday, November 19, 2016

Work·Flow ˈwərkflō/


Noun: the sequence of industrial, administrative, or other processes through which a piece of work passes from initiation to completion.

This incredible Bear Growl image is the basis of this work... The original image was a 2D flat color bitmap.
Fusion 360 I was able to create a Full 3D Model using the 2D Image as reference.
I needed FUR and ZBRUSH Allowed me to add great detail

DeskProto Machining software allowed me to create tool paths for this model with little effort.

I used my Pocket NC to machine the Freeman Gold Jewelers Wax model. Wax is 2" wide x 2" high.



After Firing the PMC 960 in the Kiln. This is prior to blackening with Liver of Sulfer and prior to final polish. Doesn't look that great at this scale but considering it's only 2" diameter it actually looks fantastic to the naked eye.

Tuesday, November 15, 2016

Monday, October 31, 2016

A little validation checking

Validating the accuracy of the Pocket NC

This is a positional check for X and Y. Are they centered about A and B Centerline? There are 2 checks that can be made. 
1) Rotating B constantly does the center hole run TRUE as it is spun? It's really about how concentric is the platter backside bearing to the front side locator hole?
2) Once that is true rotate the indicator in the spindle 360
This is a positional check for X and Y. Are they centered about A and B Centerline?

Saturday, October 29, 2016

Pixelio Fox Priest Netsuke (根付?)

Netsuke (根付?) [netsu͍ke] are miniature sculptures that were invented in 17th-century Japan to serve a practical function (the two Japanese characters ne+tsuke mean "root" and "to attach"). Traditional Japanese garments—robes called kosode and kimono—had no pockets; however, men who wore them needed a place to store their personal belongings, such as pipes, tobacco, money, seals, or medicines. 
I've been looking forward to this new project...  Scan an exceptional Netsuke and see what we can do! This particular Netsuke was my Dad's. And he was a recognized contemporary Netsuke carver.   Pixelio 3D Scanner off Kickstarter

Thursday, October 27, 2016

ZBRUSH Core an Incredible value at $199

Did you hear Pixelogic ZBRUSH Core is out?
http://www.wacom.com/en-us/products/intuos-3d
For a mere $199 you get this incredible software with a Wacom Intuos 3D package like WTF? Too bad I missed the tablet deal. I got the $149 ZBRUSH Core package. I'm liking this and it will be part of some specific workflows I'll exploit. I got to figure out how to get that sick tablet!


Monday, October 24, 2016

My ol' pappy use to say...

If at first you don't succeed... keep on sucking till you do succeed
A story about my Dad and the guy that went on to invent LASIK Eye Surgery
If you google KOPF VITROPHAGE PEYMAN  you are going to see an early patent that was made with my fathers business www.kopfinstruments.com and http://www.drgholampeyman.com/
Now this was the first patent developed by Dr Gholam A. Peyman in conjunction with my father David Kopf. It was for an instrument called a Vitrophage. Who's purpose was to remove cataracts from the eye. This was an advanced piece of equipment for it's time.  It mechanically was feed in to the side of the eye. it was the size of a horse injection. It was controlled by the doctors hand and chopped up the cataract into small pieces, vacuumed them out and replaced the particle with an equal amount of fluid. Sounds scary right? Like Doctor McCoy on Star Trek said of primitive medical equipment. Dr Gholam A Peyman went on to develop over 145 patents. He was recipient of National Medal of Technology and Innovation, the nation’s highest honor for technological achievement, bestowed by the President of the United States, President Obama in 2013.

Saturday, October 22, 2016

Bob Dylan - I shall be free #10

What song would you pick: "A day in the life" Or "I shall be free #10"?
I'm old, hopefully not as old as you haha! So mom took me to see the Beatles at their debut LA show Hollywood Bowl in '64. The same place dad showed off his Ferarri at the concurs car show. Well I've been a beetles fan since I was a kid. But Bob Dylan obviously was on the airwaves but not as profoundly as John Lennon boasted himself to be. Yet now he won a Nobel Prize in literature! So listen to this song "I shall be free #10" by Bob Dylan  https://www.youtube.com/watch?v=dW3qgP19OBE

5 Axis Artifact

This is a 5 Axis Test Artifact Concept

The arrows on the sketch show the direction a tool will point while cutting this part. In some cases the part is cut with the side of the tool. Other areas are with the tip. And these cuts are then measurable. Typically the cuts with the side are more predictable with tool length setting not critical.

Here is a word document conveying the scope of this 5 Axis Artifact

Wednesday, May 11, 2016

Billy Jack Hobo Nickel machined on Pocket NC

Billy Jack is an American Folklore Independent Movie Hero created by Tom Laughlin and supporting actress and wife Delores Taylor.
So this has been a work in process. A close friend said once when asked: "Did you hit the target Mister Todd Musgrave? He always replied: "I'm missing it closer!" I've been on this particular project for a few months exploring possibilities on how to make this particular Hobo Nickel. Not because I had any issue machining it, that is my forte... The reason is this particular design is very intricate. And it is too busy to adequately get the proper detail to do the art justice. But I was determined to cut this piece. Why? It must be done folks. Ok nuff said!
I am confident that the next iteration will "miss it closer!"
The date really needs to be 1931 to honor Tom Laughlin the year he was born.
Yeah he's that guy! Don't mess with him... Unless you like a solid roundhouse to the face!

Monday, May 9, 2016

WoW MoM WoW! Gary Swank really delivers the goods!

So I got a really special priority mail package today from Gary Swank Jewelers in Portland Oregon. If you are looking for some exceptional rings visit www.garyswank.com he will satisfy your needs for sure!!! The Banana Ring Cluster design was done by Jesse Kaufman and it is quite stellar. If you want one of these rings please contact Jesse.
First Cabin Quality all the way!!!


Oh so close I can't wait to see these babies!!!


And here we are folks with 2 rings from 2 manufacturers and it's tough to tell them apart!
To think that this is the first real decent thing I've made on the Pocket NC!!!
Kudo's to Gary Swank Jewelers and his posh style of delivering quality goods!

Friday, May 6, 2016

A Collaborative Work In Process

I've been fortunate to work with http://www.garyswank.com/ to get Desk Proto running on the www.PocketNC.com 5 Axis mill. Gary's started his first business in 1973 and incorporated his Jewelry business in 1985. He uses www.DeskProto.com and a 4 Axis mill. We worked to get a post processor working for the Pocket NC. Then we did some initial testing and comparison cuts. We used Gary's proven settings from Desk Proto. Here are some results...
These wax rings are used in the Lost Wax Casting process
Wax Ring Cut Test - Top is Gary Swanks - Bottom is Randy Kopf's
Cast Rings prior to finishing

I'll post a photo here of the finished rings after polish.



Mitee-Grip Plate for Pocket NC

KOPF PNC MITEE-GRIP
Mitee-Grip is a special way to hold parts and machine them without the traditional clamps. This special version is designed for use with the Pocket NC.
Fusion 360 CAM  Tool Path for the KOPF PNC Mitee-Grip Plate

KOPF-PNC Mitee-Grip Unit ready to use on the Pocket NC
It allows cutting 3D Relief parts without cutting into the actual table
This is what you can cut on this unit. If you look close you can see the tool cut to the Mitee-Grip Mesh Adhesive layer without actually hitting that actual table. The part is held entirely in place by the Mitee-Grip adhesive. Allowing the part to be cut without typical clamps.
What is important to understand is this brass part is cut free yet still held in place waiting for removal. And the machine table was never actually touched with a cutter.

Sunday, April 10, 2016

Busy making this Machining Foundation...

Work holding coming for Pocket NC

KOPF PNC Fixture System

I've been hard at work on my spare time designing this fixture interface for the Pocket NC. Expect to see real parts in action soon and more features!

KOPF PNC Fixture System - Partial Concept Shown

KOPF PNC Keyless Chuck - Perfect for Ring Machining


Workholding is always a challenge for machining. This design is a similar concept to the PNC Vise supplied with the Pocket NC. But this expands the entire table into a work holding system. It's easy to adjust the location to accept any size work piece. And it can clamp pretty much any shape stock square, rectangle, round or oblique. Inside and Outside force. It's simple to relocate these clamps anywhere on the table. 


Ring Blank on KOPF PNC Fixture Plate
(Note Drive Axis Labels, Oops Z label was on backwards I've since fixed that haha)
This is going to be used with Desk Proto Software.

MACHINE SHOP

I have access to a sweet Machine Shop thanks to my friends at Directed Energy. I've benn hanging out here after my day job. I'm using Fusion 360 CAM. I set up a system to make the manufacturing of these components fairly easy. 
DE Machine Shop

Wednesday, March 30, 2016

Going to the Santa Fe Symposium

Well I am pretty excited I get to attend this incredible symposium. I made a request to attend by scholarship. And I just got confirmation yesterday my application was accepted!!! I feel relieved and challenged haha. What is amazing about this conference is Rio Grande for the past 30 years has been hosting this symposium and they bring experts in from around the globe with incredible topics. Each are pushing the edge on this incredible industry. The cool thing is all the white papers of past presentations are available to download free to anyone. And they include some incredible concepts and information :-)

Part of my request included a few ideas I have that are from an outsider perspective. And they could become game changers in how a few of the key materials are processed. One is for Mokume Gane for ring making and another is using the most amazing http://www.argentiumsilver.com/ in a way that's never been used. So I'm really looking forward to what I will come back here to share an update after the event is over.

Saturday, March 19, 2016

Welcome to Desktop Artisans Blog!

We are here to master of a few worthy things...

The intent of this site is to offer insight: To blend select art forms with the use of with the latest technologies all to make extraordinary things. While there will be a heavy interest in quality jewelry making it's not limited to just that.

Typically with various art forms there are subject matter experts. They stick to their area of expertise. This is a place where that tradition will be broken!

Expect to see many methods using various media types. You will find tips and help, And worthy links to educate yourself properly. This site is all about Self Education. Learning about Complimentary Software is another key aspect. Starting with an Artist Sketch will be in the mix. Establishing a Project Plan will be emphasized.  Creating a Work Flow will be another. And Basic Design Elements will be addressed. CNC Machining will be shown. Chasing and Repousse is another, Bright Cut Engraving as well. And not necessarily limited to metal. Other manufacturing methods like PMC and Advanced Kiln-Work, with metal, glass and and Cloisonne Enameling will be in the mix as well. 3D Scanning plus 3D Printing, and a heavy emphasis on Ring Making, who knows what else?

The goal here is not to be some "Jack of All Trades, Master of none". It's about finding the right overlap of art and technology, to make some remarkable things that have not been made before, that needs to be made!

For those that follow along, we say let the universe inspire us like never before!

Please feel free to contact us with any questions randy.kopf@gmail.com and or jdkdesigns@yahoo.com Thanks for visiting us!