I did a new stencil printer design it will be avaliable before machine production starts.
It can print 300x200mm stencils and is used for prototyping.
The PCB is fixed by magnetic holders so you can reach any position on the working platform.
Our adjustment range is +/- 5mm and +/- 2 degrees. We used a stable and precision design and a magnetic fixture fore the stencil holder if pulled down. The Z axis could be moved to adjust the PCB thickness.
Why did you design it with only a single head? Wouldn't having 2 heads and the advancing pin on the back of the gantry, like the TM240A, result in a much higher component placement speed?
The double head design like the TM240A has the advantage to work without nozzle changer I use two different nozzles on each head so it could place sometimes 2 components on one movement.
SMT700 uses a nozzle changer and could reach a higher speed without vibrations.
My machine controller software could drive 4 heads but this is an expensive license option. I did not choose this version because I don't like the drag system on my TM240 because it has large tolerances. Maybe we could build a second head version having this feature I am thinking about it.
mine can place 3600 components / hour and the gantry moves about 2 Metres per second)
your old machine doing 3600 parts in an hour under full vision placement? Our machine can move 2m per second but this will not help if you move large parts. We doing a design for a prototyping machine new, high precision and at a reasonable price. If you buy a 120000USD machine used at 5000USD there is not much in best condition and you will need to use an old dos or unix interface to program. Having thousands of parameters to adjust. What's the price for spare parts if the machines stops running? For 6000USD you can buy 20 feeders for your machine?
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The other issue you mentioned is the size and weight... you are quite correct in that commercial machines are usually large and weigh a fair amount (my PM575 weighs 450 kg). However, they need to have this "heft", as there is a lot of momentum generated during their placement
It depends on how much mass needs to be accelerated!
Your machine could not be used under office conditions to big to heavy and the size is to big to move thru an office door.
Our target customer needs a small pick and place machine easy to use and doing the most prototyping jobs. The SMT700 machine weight will be near 100Kg.
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risks of purchase from a new firm
I am doing electronics design since 1988 how much experience do you want to see.
Dear Allan, thanks for the praise you are my target customer.
The file import supports at this time Altium Designer, Protel 99SE, Power_PCB_180, Allegro but it should be no problem to support Eagle files.
I had the same situation like you and bought several machines having different problems. A professional used machine having 60 feeders will cost > 25000USD. But how could you transport the machine in your office because the size is too big and the weight above 350Kg.
So I decided to build a machine that support all needs for office use and doing prototypes to several hundred boards a day.
We could scale up the platform to reach a fast servo driven machine at a price point below 10000USD. Every machine I found below 10000USD won't meet the European machines directive and many of them had no CE conformity.
If you use the TM240A you need to adjust some parts and add other by hand but you get always trouble using components in plastic strips. I placed 150000 parts using the neoden machine but it's use is very special. The best placement result you get if you are using resistors and capacitors having cardboard strips. The second main problem is the board alignment. I use a sheet metal that carries and align pcb by using adjustment holes of the pcb. Now the placement errors depends on component pickup and the movement under the nozzle if the head moves. (vibration problems need to reduce speed) To minimize the error you need to adjust the pickup position on each feeder line but you have no laser support doing this. The SMT700 use the down looking camera to help you aligning the feeder pickup point.
You can place more than 60 different components using pickup points on the SMT700 workplace. You can define a feeder at every position the machine head could reach to use tray or cut strips.
We invite every Neoden machine user to use this machine as upgrade path.
Please support me giving your excellent comments and suggestions. Best regards Michael
Thank you for compliment :) You can change equipped feeders and the software will support import function for feeder configuration. Our design is much more stable and more precise. We use 20mm and 16mm guidings instead of 12mm and 10mm at the TM240A. My TM240A has head vibrations at mid speed movements.
You get a greater value and much more flexibility. I use SMT machines for about 10 years and tried to integrate all nice features at a reasonable price. We will release more information about the next steps in the next month's.
The SMT700 machine supports 6 slots. You could use 60x 8mm 7 inch reels maximum but we will support different line sizes like 12mm, 16mm .... I have not planned yet how to arrange the different line sizes in the cassettes. You can fix trays on the workplace. If the whole feeder had 12mm lines you may get 7 lines in this slot. (16mm 5 lines) In the starter version only 3 slots are equipped but you can buy additional feeder cassettes for the 3 empty slots. We will support higher components like capacitors. The nozzlechanger holds 4 different nozzles to support all sizes of components. It could place parts down to 0402. The speed should be like a TM240A my machine places average 1800 components per hour. We should reach >1000 components per hour if vision system is used.
Looks great! Care to share any spec's, approximate pricing, etc?
We plan to release the machine in different versions.
The starter version has stepper drives using leadshine DSP drivers (quiet servo like) and 3 feeder cassettes no cover starting at 5499USD. For the EU machine directive you need the cover and security equipment (lock switch, security controller) add 550USD. A full featured machine using 6 feeder cassettes and cover will start at 6750USD. The machine is controlled by a PC software having several import functions for different cad file formats. We could do fiducial recognition to align the board and component alignment using different correction methods.
No the design is not finished yet there are some details missing. The feeder design needs to be completed. We solved 50% the design task is still going on. But you see a compact machine having a lots of feeders and using vision system to align the components.
I am designing a small vision based machine having 60x 8mm feeders exchangeable at a size of 800x700mm. We meet all CE requirements and the EU machine directive. The production will start end of year.
Please note that all pictures are wider than shown you get the complete size on right mouse click.
Here are some pictures of the construction 50% of design task finished.