Yes is simple to add the LED however they are sensing when the blade goes on (obviously) but also in the case of auto scoring when the scoring is fully retracted plus a few seconds, the LEDs don¡¯t just turn off when the switch is flipped. I would think with the auto score it is not simply timed from turning the switch but timed when fully retracted, ?without auto score you could simply time it, also the switch is lighted but way too dim I didn¡¯t even notice that it did that until like a week or two ago.?
For what it¡¯s worth I think the LED is totally worth it even with auto score, i have left the switch on turned off the saw, a few days later turned on the saw not needing the scoring but assumed/didn¡¯t check if scoring was on...
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On Jan 20, 2021, at 10:52 AM, imranindiana via groups.io <imranindiana@...> wrote:
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Mark,
I do not mean to bad mouth but somehow LED feature is less impressive when seen gutted out. Your post is very timely. I am working on adding wireless switches to my slider. It did not occur to me until now but adding LEDs to turn on with scoring is not that hard. Definitely going to look into that ?
Imran
On Jan 20, 2021, at 10:24 AM, Mark Kessler <mkessler10@...> wrote:
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Oops, and here is the original with the silicone for reference , all of the cavities below the LED were filled with silicone?
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On Jan 20, 2021, at 10:19 AM, Mark Kessler via groups.io <mkessler10@...> wrote:
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Hey Imran, looks like I left out some key details, there are so many for such a simple thing really.?
The white blob is silicone, looks like they filled most of the internal pockets of the factory section with silicone, to hold it in place and to diffuse the light. The LED¡¯s don¡¯t even line up with the holes. The gray parts are the factory supplied parts.
Yes the first step was to redraw/ model the exact parts that felder supplied to their dimensions, i then extruded down about 8mm for the wood insert and add the tap locations for the bolts to hole the wood insert. At that point i had to extrude pockets on the backside for the LED wiring and there is a little metal dust shield that required space relived, there are some other minor tweaks that were required to make it work.?
When I bolted on the 3d printed part it actually lined up dead flush with the cast, I would prefer a little adjustment so I had to drill out the washer of the bolt that holds the part onto the cast by .5 mm and that dust shield, had to file a flat on the washer so the part could have a little room to drop below the table if needed.?
I was resisting and really wanted to just buy it so I could get back to building furniture but couldn¡¯t take the random flying pieces of wood anymore, One of the big drawbacks of a zci for me is that you have to remove it for angle cuts but yet in another plus of moving up to the k940 over the k700 is that you don¡¯t have to remove it to change the angle, at least with a 300mm blade which is what I use.?
Felder should offer it but I think it would be pretty costly, they could recut the mold for the Injection molded parts but the parts they are getting out now (at least the ones on my machine) are pretty low quality, lots of shrinkage probably due to injecting too fast, cooling to fast I doubt they did a a flow analysis- could probably improve the part with scientific molding but even then plastic isn¡¯t really the right material to base a ZCI off of for this machine config, could be done but metal as the base would be better.?
Here are some additional screen shots for clarification.
Here is the dust shield with the clipped washers?
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On Jan 20, 2021, at 7:29 AM, imranindiana via groups.io <imranindiana@...> wrote:
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Looks Awesome. What is the white blob looking thing at the end of LED strip?
So looks like you are recreating what felder supplies. Is this 1st step to make ZCI?
I need one terribly for K975. I bought 2 for KF700 and never installed them. It was not bad because I do not have scoring. I think scoring just exacerbates the situation and cutoffs are violent. IMHO, OEM should consider ZCI implementation when designing the saw.
Imran
On Jan 19, 2021, at 11:27 PM, Mark Kessler <mkessler10@...> wrote:
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So I decided I needed a zci for the new k940, thought I would get away without one but here I am... I reached out to David Best as I knew he had made one for the kappa. The k940 saw unit, top casting and 3 plastic segments appear to be the same however I have the LED lights so wasn¡¯t sure if David would be willing to modify his design and if it would be worth the time/cost to do so. After a few back and forth emails David decided to not take it on, a few key dimensions were slightly different and could require a few iterations to get it right which I agreed.?
David was so kind in allowing me to use his drawings, however after I started to model it and compared it to my parts in hand it wasn¡¯t adding up so I had to abandon the drawings given and just start from scratch from my actual parts.
So the first task was to model the LED section first as it is the most difficult to work out, then 3d print, check fit and make adjustments (done) After that 3d print all the parts to confirm (tomorrow) and finally have machined in aluminum (tbd)
The other unknown was how was the LED installed, the only way to find out was to remove it which would obviously void the warranty but after studying the elect schematic and looking at the parts drawings I convinced myself that it was no big deal and easy to fix if I screwed up the LED strip.?
So here are some progress pics... note, the 3d printed LED section is short due the the 3D printer bed not being long enough, a bolt hole is missing so it is not tight against the cast...
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Below is the auto score feature in action with the as delivered LED section?
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