HI electrolust, no I have not used the MAN-32, but I do not see the issue there with the Z/theta movement (if I understand you correctly). I always correct 'on the fly' the component, if needed, while on top and lowering toward the footprint (see also video below where the operator is doing same), but having said this, the machines I have used have slightly different mechanism to achieve this. I think just needs getting used to this type of control..
Can I ask what are you going to use the machine for and for how long/how many parts per use?
OK, if vision is what you need due to physical reasons, then you can look for a machine with a camera. My comments on the cameras on these machines are that first it slows you down alot and second I used to get dizzy while using them, altho I felt uncomfortable when I first started to use mantis microscopes as well, but then got used to it. I guess I can see why the SMT-CAdy have gone with the movable screen to probably improve this so you do not need to look away from the board which causes eye and neck pain after some time (not a big fan on this machine, but I can see its very niche use). Back to the cameras, the LPKF, Fritsch, Essemtec and few others are using cameras that you plug to monitors directly, hens they are quite fast. The ec-Placer is using USB microscope camera that is abit pain to use - lags when moving and takes time to refocus sometimes, but the cross option is good, just know that you can get this usb camera separately for $10-20. The person that mainly works on our machine I remember used to make his own footprints with a cross in them to get the full potential of the feature
. The camera option ultimately will slow you alot (same as with fully automatic machines, in general if they need to use the cameras they get slower in placement, but they have theirs workarounds to improve on this).
Watch the video at the beginning when the operator is placing solder paste, he is not looking at the camera at all and I am sure he is also not looking at it during placement of parts. By the way, for the solder dispenser, I would only get it if it comes for free (OK, make that $100 if I have to paste boards with less than 20 pads), the cheap solder stencils thesedays cannot be beaten in speed and price.
https://www.fritsch-smt.de/video-seiten/mp904I will give you some negatives (my personal view) on the ec-Placers here:
1. The foot switch for the vacuum (I think it only works with it from memory, skip my next words if that is not the case) - I think it is the biggest downside of this machine. Having to use another body part and the brain kills the simplicity for me. If you see videos from Fritsch, Essemtec, LPKF, Dima, Atco, old OKI machines, Manncorp, Bokar/Bomir, APSNovastar, MAN-32, Mekhatronika (I will try not to use this word alot as it triggers some people here) they all use pressure switch inside the head. It works perfectly and you do not need to think about it during placing, it just works - you pick a part, the pressure engages, you drop the part in the footprint, the pressure stops and the part stays there. They are tuned (at least on the machines I have worked with - LPKF, Fritsch, OKI and M
) quite well so that as soon as it feels the resistance from the paste it turns off so you don't squish the paste under it.
2. Not comfortable on the hand/body over long use;
3. Feeders - The tape feeder slots on the left pretty much feed the empty tapes into the working area. In this case you have two options:
- option 1 is to place the board close to the feeders so that you do not travel far away (less body movement) to pick and place, but will have to often cut out the tapes as they get closer to the board/other parts on the table;
- option 2 is to place the board far away from the feeders in which case you will be cutting less often, but will be travelling further for pick and place;
If you can get the LM901 (have you check the prices of it?), then do not look at the MAN or the ec Placer
. When I got the MM600 new for ~$3-4k (air freight + some extra feeders), I also got priced for used Fritsch (priced from the manufacturer) with matching features to the MM600 for ~$14-15k. Now these machines are semi automatic machines that's why they cost more. A full blown Fritsch I think costs ~$25-35k? The MM600 is still the lowest cost semi auto machine on the market even now I think and is cheaper than some manual machines as well. A downside here is if the controller breaks in these more 'advanced' machines then it might be 'difficult' to move to the 'manual mode'.
Since you seems in USA, check APSNovastar, Atco, LPKF, Manncorp and Bokar/bomir as they are USA based, or have good presence there.
Essemtec and LPKF, both make very nice machines as well (I work often on the LPKF ProtoPlaceS) and often pop out in eBay for very good prices. I have also seen several times old OKI machines for less than $500 in working condition.