mdcpickandplace:equipment
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mdcpickandplace:equipment [2010/06/03 15:21] ladyada |
mdcpickandplace:equipment [2011/07/08 22:21] pstemari |
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| Air freight for the pick and place from Japan should be 'free' as it is included in the price. The crate is about 4' x 4' x 4' and weighs 350 lb so if you need to haul it around make sure to get quotes first | Air freight for the pick and place from Japan should be 'free' as it is included in the price. The crate is about 4' x 4' x 4' and weighs 350 lb so if you need to haul it around make sure to get quotes first | ||
| + | ---- | ||
| + | You can do a fancier job of running the numbers--pick an interest rate, say 7%, and a lifespan, e.g. 5 years, and compute a monthly payment. In this case that works out to $594.04/month, that it's costing either to a bank or in opportunity cost. The $594/month is what you need to save per month in contract costs for the purchase to have a net benefit. --PJS | ||
| + | ---- | ||
| ===== Or... ===== | ===== Or... ===== | ||
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| * Buy a professional machine, used | * Buy a professional machine, used | ||
| - | * [[http://madelltech.com/|Madell]] - Made and sold in the US | + | * [[http://madelltech.com/|Madell]] - Made and sold in the US (? we now don't think this is true: it seems that they are chinese imports) |
| * [[http://www.apsgold.com/|APS Gold / Novastar]] - Made and sold in the US | * [[http://www.apsgold.com/|APS Gold / Novastar]] - Made and sold in the US | ||
| * [[http://www.mdc-smt.co.jp/|MDC]] - Made in Japan, distributed in the US and worldwide ([[https://www.manncorp.com/index.php?auto=done|Manncorp]], [[http://www.mekko.co.uk/|Mekko]]) | * [[http://www.mdc-smt.co.jp/|MDC]] - Made in Japan, distributed in the US and worldwide ([[https://www.manncorp.com/index.php?auto=done|Manncorp]], [[http://www.mekko.co.uk/|Mekko]]) | ||
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| ===== What to look for when buying a pick and place ===== | ===== What to look for when buying a pick and place ===== | ||
| + | |||
| + | * Price - whats your budget? You can spend as little as $10k for a 'non-automatic' placer - up to hundreds of thousands | ||
| + | * Space - how big of a machine can you get? We have very little space and a floor that can't support hundreds of pounds. | ||
| + | * Power - We don't have 220V so that limits what we can get | ||
| + | * Software - can you use it? try to get a view of the software manual | ||
| + | * Top Vision - Top/training vision is great for quick debugging and fiducial recognition | ||
| + | * Bottom Vision - for placing fine pitch and leadless parts | ||
| + | * Non-mechanical centering - Mechanical centering uses little tweezers to center parts. Personally we prefer non-mechanical centering - less to break and can be much faster | ||
| + | * Feeders - in all sizes, tubes, trays must be OK. | ||
| + | * Cut tape feeders - This may be an option for you if you are making very small run parts | ||
| + | * Speed - how many parts can you place in a minute? For some this may be important! | ||
| + | * PCB size - how small/big can the parts be? | ||
| + | * Accuracy - Can it cope with 0201s? Fine pitch chips? | ||
| ===== Buying new vs. used ===== | ===== Buying new vs. used ===== | ||
/home/ladyada/public_html/wiki/data/pages/mdcpickandplace/equipment.txt · Last modified: 2016/01/28 18:05 (external edit)
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