PCB XY table - Page 1
Forum section: electronics / general

author: mattbrockuk
author_rank: Contributor
timestamp: December 07, 2016, 03:32:30 pm
content: Hi guysI'm sure theres loads of these but I've not managed to find the right google term for it.I'm after a PCB holder thats on a X&Y precision stage (with micrometer dials?). I'm thinking of rigging something up (probably use a mill compound stage), but i can't believe this doesn't exist already. How do all these BGA rework $100 specials on eBay work.. surely when you come to put the BGA back on, you need to accurately shift the PCB about by tiny amounts to get it all aligned properly.... or a tight pitch QFP being reworked...Thanks in advanceMatt

author: ebclr
author_rank: Super Contributor
timestamp: December 08, 2016, 04:48:32 am
content: https://world.taobao.com/item/524215534746.htm?spm=a312a.7700714.0.0.L8LEvw#detail

author: cmantunes
author_rank: Contributor
timestamp: December 08, 2016, 08:32:36 am
content: Quote from: ebclr on December 08, 2016, 04:48:32 amInteresting gizmo. How would one properly use this thing, though? Apparent source:http://www.htbga.com/product/60541232765-803997663/HT_90X_BGA_ball_table.html

author: richardlawson1489
author_rank: Regular Contributor
timestamp: December 30, 2016, 07:13:20 am
content: Great ebclr. Please provide details of using this. This may helpful to me for my project.

author: ebclr
author_rank: Super Contributor
timestamp: December 31, 2016, 03:01:26 pm
content: This picture is self explanatory

author: cdev
author_rank: Super Contributor
timestamp: December 31, 2016, 04:12:14 pm
content: I am interested in either buying or joining together with others on a project to build something like that to help with precise positioning and then drilling holes. So what I guess I am looking to buy or build is a subtractive xyz table.Like a 3D printer in reverse.(The same jig could also likely also eventually engrave a PCB but small steps first, right now I would just be happy to simply drill the via holes in a more precise, controllable, rapid way.)Doesn't have to be anywhere near as precise as the device in the animated GIF.

author: ebclr
author_rank: Super Contributor
timestamp: December 31, 2016, 06:47:51 pm
content: Like this

author: cdev
author_rank: Super Contributor
timestamp: December 31, 2016, 10:44:53 pm
content: Is that your creation?Google tells me its a CNC found on aliexpress and taobao.com

author: glenenglish
author_rank: Frequent Contributor
timestamp: January 01, 2017, 06:07:22 am
content: Try and get one with ball screws, rather than what is in that photo...Matt something that would be WELL GOOD enough would be the 3040Z CNC platformYou can buy it for about USD550 delivered, (without steppers or control PCB) (You don't want the ones they supply.)sales16@lybga.comit is called the "UNASSEMBLED KIT". I have bought a few from these guys. just tell them to put extra packing on the corners.there is also a bigger one the 6040Z available in light and heavy versions. again flatpack, no steppers or controller @ 780 inc shippingand then a 6090Z....the 3040Z is big enough for any PCB.I have used one for my paste dispenser, and teamed it up with 3 x $87 closed loop NEMA23 steppers....they have inbuilt drivers, - just supply pulses to drive them......http://www.cntopstock.com/nema-23-1nm-142ozfin-integrated-closed-loop-stepper-motor-36vdc-jmc-ihss573610-p-5376.htmlthat is what I useor if you want higher top speed :http://www.cntopstock.com/100w-nema-23-029nm-integrated-servo-motor-36vdc-3000rpm-jmc-ihsv57301036-p-5368.htmlcheers

author: technotronix
author_rank: Regular Contributor
timestamp: January 03, 2017, 12:37:54 pm
content: I love the idea. Thanks for sharing picture ebclr.