Author Topic: Passive feeders  (Read 714 times)

trev

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Passive feeders
« on: January 28, 2019, 03:16:03 PM »
In case anyone is interested in some passive feeders, I found some on thingiverse, printed them off and they work a treat. Really impressed with them.

https://www.thingiverse.com/thing:2506053

Trev

Mpbrock

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Re: Passive feeders
« Reply #1 on: March 19, 2019, 12:08:56 PM »
Hi Trev

How are you mounting these to the RV1/RV4s? Just double sided tape?

Cheers

Matt

trev

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Re: Passive feeders
« Reply #2 on: March 19, 2019, 12:32:15 PM »
Hi, the feeders have magnets on the bottom so they can just sit on the base. Strength of magnets depend on what you go for. You can define the size in the thingiverse contructor to take any size magnets.

The other way is double sided tape but its not very easy to get off the feeder or the base afterwards.


Mpbrock

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Re: Passive feeders
« Reply #3 on: March 19, 2019, 12:37:14 PM »
That's cool, i didn't think about it being magnetic ... I'm hoping to use the RV1S just for "exotic" stuff that won't fit on the Juki, so 3d printable feeders are perfect for the job.


trev

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Re: Passive feeders
« Reply #4 on: March 19, 2019, 02:08:49 PM »
Where are you based? Did you just buy the machine on Ebay that sold yesterday?

Trev





Mpbrock

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Re: Passive feeders
« Reply #5 on: March 19, 2019, 03:01:28 PM »
Hi

North-west UK, and yep bought off eBay yesterday - lots of research until it arrives.

Have experience with much larger machines (iPulses) and Juki's so not new to the PnP game, although I've never a none-XY gantry based setup, so going to be interesting.

trev

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Re: Passive feeders
« Reply #6 on: March 19, 2019, 03:19:40 PM »
Well, there is some great information on these machines on this forum.



Mike

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Re: Passive feeders
« Reply #7 on: March 19, 2019, 05:19:41 PM »
Be careful using magnets - most parts are magnetic and can tombstone in passive feeders if there is a strong magnet underneath.
magnets from small speakers ar ideal as they are usually well shielded
 

Mpbrock

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Re: Passive feeders
« Reply #8 on: March 19, 2019, 06:06:58 PM »
I guess its probably? ok because the magnets are at the base and the tapes ~22mm above the magnet? Did you have to tweak the height of the feeder Trev - not sure how much Z-travel the RV*S actually has (yet)...

//Height of tape's bottom side above bed
tapeLayerHeight=22.8;

trev

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Re: Passive feeders
« Reply #9 on: March 19, 2019, 08:17:21 PM »
The standard models are 25mm ish high I think. I used these on the base plate of the machine. I actually did some pcb holders that I printed off. They had 6mm high magnets in them and were about 20mm high. I placed a couple of components on a board near a holder but without tape or paste on the board and the components moved. These parts have such little mass, they can be affected.

So Mike is right, you do have to be careful.