| azonenberg | Sync__: nice | 03:07 |
|---|---|---|
| azonenberg | i have stages from digshadow | 03:08 |
| azonenberg | but not wired up yet | 03:08 |
| azonenberg | the controllers didnt show up | 03:08 |
| azonenberg | so i'm gonna have to hack something up | 03:08 |
| SpeedEvil | I'm kinda wondering how hard a teeeeny arm would be. | 09:36 |
| SpeedEvil | being able to tie knots in 50um wire would be cool. | 09:37 |
| Sync__ | yeah, my stages have dc servos azonenberg | 11:57 |
| azonenberg | Sync__: these are steppers | 12:49 |
| Sync__ | I guess | 12:52 |
| Sync__ | nota friend of steppers | 12:52 |
| Sync__ | yeah nice | 15:48 |
| Sync__ | right on the money... repeatable within 1µm on the ball screw stage | 15:49 |
| Sync__ | the regular screw has around 3/100 backlash but I can compensate for that | 15:49 |
| Sync__ | http://sync-hv.de/~tmp/stage_running.mp4 I'm ok with that | 15:58 |
| Action: SpeedEvil is doing CNC soon - maybe - but the initial resolution will be +-0.5mm hopefully. | 16:01 | |
| Sync__ | well, there is not much point in doing it cnc then | 16:08 |
| SpeedEvil | Sure there is. | 16:11 |
| SpeedEvil | If I can cut 20 shapes in plywood to +-0.5mm - that is quite adequate for making some forms of furniture. | 16:12 |
| SpeedEvil | Or building components. | 16:12 |
| Sync__ | I'm probably faster with the bandsaw | 16:12 |
| Sync__ | but yes for wood that might be acceptable to some degree | 16:13 |
| SpeedEvil | I'm pondering a full sheet cutter. | 16:13 |
| SpeedEvil | Though other projects for a similar platform are something along the lines of a microbonder. | 16:13 |
| Sync__ | I found that it is way easier just to get an old westbond off eaby | 16:14 |
| SpeedEvil | http://www.ebay.co.uk/itm/WestBond-2400-TS-AUTOBONDER-X-Y-STAGE-W-MOTOR-PARTS-/150883783329?pt=LH_DefaultDomain_0&hash=item23215fd2a1 hmm | 16:15 |
| Sync__ | get a complete one | 16:16 |
| Sync__ | building the rest is just too annoying | 16:17 |
| SpeedEvil | More actually aimed at microsoldering - I want to be able to point-point wirebond 0.5mm BGA. | 16:17 |
| SpeedEvil | And alas - funds are a major issue | 16:17 |
| Sync__ | for most things a manual bonder is good enough | 16:19 |
| Sync__ | or rather for 99.9% of the things that are not in production | 16:19 |
| SpeedEvil | I'm wondering about PCB elimination | 16:19 |
| Sync__ | o.0 | 16:20 |
| SpeedEvil | And yes - it's probably silly. | 16:23 |
| SpeedEvil | But - meh. | 16:23 |
| SpeedEvil | If we only did sensible stuff, where would we be. | 16:23 |
| Sync__ | what benefits would cause you to do this? | 16:32 |
| SpeedEvil | rapid inexpensive prototyping, amongst other things. | 16:33 |
| Sync__ | well, if you are forced to use .5mm bga I guess you can pay for getting 6 layer pcbs | 16:35 |
| Sync__ | otherwise you are also not going to be able to use the chips as they were designed due to parasitic effects | 16:36 |
| azonenberg | Sync__: not necessarily | 17:06 |
| azonenberg | i've seen some 0.5mm bga chips that are i2c interface :p | 17:06 |
| azonenberg | 3x3 wlcsp | 17:06 |
| Sync__ | well yeah. | 17:12 |
| Sync__ | but everything that uses .5mm bga for a reason is high speed | 17:12 |
| SpeedEvil | I have ideas about parasitics. | 17:28 |
| Sync__ | well it is way easier just to get pcbs made | 17:31 |
| SpeedEvil | true. | 17:34 |
| Sync__ | also way more cost effective | 17:37 |
| SpeedEvil | For 2 layer PCBs, totally. | 17:41 |
| Sync__ | even with 4 or 6 layers | 17:42 |
| Sync__ | getting pcbs made is not expensive anymore | 17:42 |
| SpeedEvil | Where can I get inexpensive 6 layer PCBs made? I seem to have missed that. Even relatively small ones - say 4*4cm | 17:43 |
| Sync__ | it depends on your design rules | 17:43 |
| Sync__ | but 4 layer out of china is around $45/5pcs at 50x50mm | 17:46 |
| --- Sun Mar 9 2014 | 00:00 | |
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