Author Topic: Low Cost Pick and Place Machine  (Read 54009 times)

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Offline Kjelt

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Re: Low Cost Pick and Place Machine
« Reply #150 on: October 02, 2015, 07:21:49 am »
The scenario that scared me was this.....

Customer: "We would like to order 25 of your awesome product, but we need it next week. Can you do it?"
Me: "Great, of course we can. I just got a new automatic PCB assembly machine."

I buy all the parts and prep all the mechanics. Customer is now counting on a delivery and has stopped looking for any other alternatives. P&P gets crazy and I spend a number of hours troubleshooting.

If you are in the JIT logistics game there is a lot that can go wrong.
You at least should have your parts and pcbs already in stock or have guarantees from third party supplier.
If you have demanding customers that need delivery guarantees in that short amount of time you almost can not do business without having the fully assembled product ready to ship in stock. Too many variables too mess it up and that costs a lot of goodwill, eg ruins your name. Just my two cents.
 

Online rx8pilot

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Re: Low Cost Pick and Place Machine
« Reply #151 on: October 02, 2015, 07:59:25 am »
If you are in the JIT logistics game there is a lot that can go wrong.

Tell me about it! In reality, the problem is that my small biz is just getting over the hump of being able to produce the product faster than the build up in demand. Early in the process, there were a ton of revisions, tweaks, software, etc. All that in addition to figuring out a shipping system, storage, website, all the back office junk.

The problem is not really the customers, but more on my end trying to work out the production chain. My product has a little over 400 parts and I do all of it soup to nuts. Design, mechanical engineering, electrical engineering, software, PCB assy, 5 axis CNC machining, inventory and purchasing, website. I am slowly automating everything starting with the P&P, then all the production test and measurement with LabView. Ordering and shipping is being automated too. Trying to see how far I can get on my own focusing on automation. Starting to outsource the CNC parts now that the design is stable and documented. When the design is fluid, it is impossible to outsource. Machining the parts myself is a huge help to optimize the designs for manufacturing without compromising the function. Since I do all the mechanics, the 7 PCB's fit in like a well considered puzzle because they were designed with the mechanics.

It may be more clear why I am sensitive about reliability with my equipment. If the P&P stops working - it falls on me to hand place PCB's until it gets fixed which is also done by me as well. I hand placed many 10's of thousands of parts to save enough money to get all this going so at least I am very accomplished at hand building PCB's with lots of fine pitch parts on double sided PCB's.

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Offline mikeselectricstuff

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Re: Low Cost Pick and Place Machine
« Reply #152 on: October 02, 2015, 09:23:01 am »
If you are in the JIT logistics game there is a lot that can go wrong.
You at least should have your parts and pcbs already in stock or have guarantees from third party supplier.
..And once you are in a situation where PCBs are in  stock, it will often be more cost-effective to subcontract the assemby, and probably also the part sourcing.
This is why the market for a small pick/place is limited - it sits in a small niche between hand assembly and subcontract.
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