Success!! PCB with Shapeoko

xpix
Posts: 218
Joined: Thu Sep 06, 2012 6:47 am

Success!! PCB with Shapeoko

Post by xpix » Tue Dec 11, 2012 8:12 am

Hello Friends,

now i can presents after some try's my first PCB milled with Shapeoko. Here at work i have only a scanner, but i think the result is ok:
pcb.jpg
PCB milled
pcb.jpg (502.36 KiB) Viewed 4545 times
I used pcbgcode in eagle with standard Preferences in mm.

But the best Advice i got from follow Todo: http://www.ofitselfso.com/LineGrinder/L ... yStep.html. To find the zero level, is easy to use a brandnew drill and measure this (7.95mm in my case), then i did this:

http://www.ofitselfso.com/LineGrinder/L ... tBitHeight

Ok, without a 'Dual Y' it's impossible to realize good results. But u need not more ;)

Here my Steps:
[*] Mill a Pocket, with max 1mm height
[*] use TESA doubleside Tape in Pocket and PCB
[*] use a brandnew drill (7.95mm)and measure Z-Level
[*] remove drill and send 'G0 Z-7.95'
[*] reset GRBL
[*] start spindle 10.000 rpm and gcode

Here some Data for Drilling:
[*] 1,0 - 1,5 mm 10.000 rpm
[*] 0,5 - 1,0 mm 16.000 - 18.000 rpm
[*] 0,0 - 0,5 mm 20.000 rpm and more

I used this TESA Tape:
http://www.amazon.de/gp/product/B000GPI ... 01_s00_i00

... and this endmill:
http://www.ebay.de/itm/ws/eBayISAPI.dll ... 2078wt_763



Milling:
http://www.youtube.com/watch?feature=pl ... TeQPlkVGDE




cu
xpix
Attachments
2screen.JPG
Tab 2
2screen.JPG (49.8 KiB) Viewed 4546 times
ScreenPcbGcode.JPG
PcbGcode_eagle_Screenshot
ScreenPcbGcode.JPG (73.62 KiB) Viewed 4607 times
Last edited by xpix on Fri Jan 04, 2013 11:28 am, edited 2 times in total.

kkeller
Posts: 14
Joined: Mon Aug 27, 2012 4:57 pm

Re: Success!! PCB with Shapeoko

Post by kkeller » Thu Dec 13, 2012 4:17 pm

xpix - Great looking PCB milling. I hope to duplicate your success. Thanks for putting in so much detail. This will help very much.

- Ken -

xpix
Posts: 218
Joined: Thu Sep 06, 2012 6:47 am

Re: Success!! PCB with Shapeoko

Post by xpix » Fri Dec 14, 2012 7:35 am

kkeller wrote:I hope to duplicate your success.
@Ken: If u need help, ask me. Yesterday i had Problems with drilling, two driller are garbage ;) Now i order in ebay some 0.7mm Driller solid carbid and give at weekend a second try ;)

Archangel
Posts: 38
Joined: Wed Nov 21, 2012 12:37 pm

Re: Success!! PCB with Shapeoko

Post by Archangel » Fri Dec 14, 2012 1:41 pm

I am looking forward to trying this too. Thanks for the tips!
Stretched Custom ShapeOko
800 X 1000 / Dual Y motors / Direct Drive Rack and Pinion / Supported Y Rails / Reversed X Axis Makerslide / 24V T4 TB6560 controller

xpix
Posts: 218
Joined: Thu Sep 06, 2012 6:47 am

Re: Success!! PCB with Shapeoko

Post by xpix » Mon Dec 17, 2012 10:43 am

xpix wrote:
kkeller wrote:I hope to duplicate your success.
@Ken: If u need help, ask me. Yesterday i had Problems with drilling, two driller are garbage ;) Now i order in ebay some 0.7mm Driller solid carbid and give at weekend a second try ;)

Drillers are good, but most Problems i had with tool change. Hmm, what is the best solution, mostly i change the tool and the YXAxis wobbel a little bit. Result, the hole is not in center of the pads.

Here my Question, what is te best way to change a tool without lossing the Position? May "Feed Hold" is a Solution?

edwardrford
Posts: 1250
Joined: Mon Apr 09, 2012 5:40 pm
Location: Dixon, IL
Contact:

Re: Success!! PCB with Shapeoko

Post by edwardrford » Mon Dec 17, 2012 2:03 pm

The trick is to lock the motors when you're doing a tool change. Right now the motors are only activated when they are running. There is a thread about a hack for grbl that keeps the motors enabled all the time. That might help. I believe atomsoft posted it.

Otherwise, adding homing switches would probably solve the problem.

-Edward
Shapeoko 1 #0 - a couple of upgrades.
Shapeoko 2 #0 - a couple of upgrades.
Shapeoko 3 #2 - Stock

PsyKo
Posts: 430
Joined: Thu Aug 30, 2012 8:42 pm
Location: France

Re: Success!! PCB with Shapeoko

Post by PsyKo » Mon Dec 17, 2012 2:09 pm

Shapeoko #736
Kress 800, Z Axis upgrade, dual Y, 600mm X&Y rails, metal spacers and V Wheels, home switches, 4th axis
Goko - Free CNC Control Software - http://www.shapeoko.com/forum/viewtopic ... 380#p44380

Will Winder
Posts: 435
Joined: Fri Apr 20, 2012 2:40 pm
Location: Hudson, MA
Contact:

Re: Success!! PCB with Shapeoko

Post by Will Winder » Mon Dec 17, 2012 2:45 pm

edwardrford wrote:The trick is to lock the motors when you're doing a tool change. Right now the motors are only activated when they are running. There is a thread about a hack for grbl that keeps the motors enabled all the time. That might help. I believe atomsoft posted it.

Otherwise, adding homing switches would probably solve the problem.

-Edward
This is now a default feature in the latest version of GRBL (0.8c), just set "$7=255". More details are here: https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.8
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

PsyKo
Posts: 430
Joined: Thu Aug 30, 2012 8:42 pm
Location: France

Re: Success!! PCB with Shapeoko

Post by PsyKo » Mon Dec 17, 2012 3:24 pm

Maybe a newbish question, but does it affect the driver overall temperature ? If always enabled, do they have time to cool down ?
Shapeoko #736
Kress 800, Z Axis upgrade, dual Y, 600mm X&Y rails, metal spacers and V Wheels, home switches, 4th axis
Goko - Free CNC Control Software - http://www.shapeoko.com/forum/viewtopic ... 380#p44380

jsbannis
Posts: 80
Joined: Tue Apr 10, 2012 11:09 pm
Location: Chicago, IL

Re: Success!! PCB with Shapeoko

Post by jsbannis » Mon Dec 17, 2012 5:17 pm

It increases driver temperature significantly. The driver is sourcing the most current when the motors are in hold. If holding is enabled you'll need to turn down the current pots to keep the temperatures reasonable, or have a pretty good cooling system.
shapeoko #0057

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