Electronics Forum | Wed May 23 20:17:48 EDT 2012 | kahrpr
That not such a crazy idea. In a past life a long time ago we had a part sticking issue. some one suggested mold release on the nozzle. ( we also did injection molding) and it did work. It did not appear to leave any residue. We also use a cree Led o
Electronics Forum | Wed May 23 20:33:51 EDT 2012 | stentech
Great information guys..I am learning a lot. Reading all the info changing the nozzles, pressure and coatings are certainly narrowing the choices. A lot of coatings I have come accross seem to come from the Mould industry especially Teflons etc. I lo
Electronics Forum | Fri May 13 22:24:47 EDT 2022 | glasscake
Try adding blow after mount before head up if your machine lets you. Make sure your placing the part into the solder paste as that will add some holding force as well. If your tips are spring loaded you can do some 0.5mm additional mounting height.
Electronics Forum | Thu Mar 15 13:39:06 EDT 2018 | gregp
Impact is the instantaneous force at the time the component first reaches the PCB. F=M*a....so the acceleration is the key factor. If charted on a graph it would look like a spike...higher force for a short duration. The placement force is typical
Electronics Forum | Fri Oct 10 16:23:59 EDT 2014 | dilogic
First, plug all holes with nozzles or plugs. Then use I/O diagnostics to fire changer up and activate vacuum. Then try to remove each of the nozzles and see if the vacuumm holds. If it does, check vacuum detector switch (mounted on changer side). The
Electronics Forum | Mon Aug 08 08:32:42 EDT 2016 | emeto
Just get a regular scale(small thin one - like a scale for kitchen). Mount it over a PCB and simulate placement with certain force. Hold the nozzle down for long time in order to register accurate reading from the scale. Then, just change parameters
Electronics Forum | Thu Oct 21 04:21:55 EDT 2004 | siverts
Have been through this before and we resolved our problem as follows: 1.Make sure that the length of your board support pins on Your HSP is correct. On that machine the board support pins depends on the board thickness (+ - some tenth's of a mm). It'
Electronics Forum | Wed Jan 02 12:15:44 EST 2002 | pteerink
Don't waste your money on T&R feeders for large parts. I used to have an old TP9 and we ran tons of products with vibe tubes and odd shaped parts. Used to cut our own tubes for parts and jimmy-rig parts like crazy to make them all fit on the machine
Electronics Forum | Fri Jun 07 09:53:24 EDT 2019 | dhanish
How do you perform measurement the placement force for NXT machine?Fuji provide the placement force data by nozzle type.How can we verify the actual force?
Electronics Forum | Tue Mar 13 18:13:41 EDT 2018 | dleeper
Placement force usually refers to the amount of force an SMT nozzle applies to a part when placing it. You want enough force to push the component onto the paste but not so much that you damage the part. Some specialized applications involve placing
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