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Re: For sale: felder KF 700/S pro, 8741 planter joiner, AF 22 dust collector, collector, carbide cutters, and blades
¿ªÔÆÌåÓýContact information might be helpful here. ?David Best
DBestWorkshop@... https://www.flickr.com/photos/davidpbest/collections/ https://www.youtube.com/@David_Best
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Re: Drive Belt Position Sensor Errors and other machine shortcomings? K940S
¿ªÔÆÌåÓýYes, this happens frequently on the Kappa 400. ?The dust extraction on these systems is inferior to the K975 it replaced, and a couple of us here on FOG have had distasteful arguments with Hansj?rg Felder himself about this. ?The best solution to this error is to spray down the sensors with compressed air on a routine basis.David Best
DBestWorkshop@... https://www.flickr.com/photos/davidpbest/collections/ https://www.youtube.com/@David_Best
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Re: Drive Belt Position Sensor Errors and other machine shortcomings? K940S
¿ªÔÆÌåÓýHi Mike: ? I have a Kappa 400 which is similar to your machine under the cast iron table. Because mine is an x-motion version, instead of a ¡°light¡± showing a sensor fault for blade speeds, the fault comes up on screen. However, I don¡¯t need to dive under the table to correct it. ? Instead, I blow compressed air under the table around the blade and arbor or just around the scoring blade and that usually clears the fault (in real time). Sometimes I even stick the end of my blow gun in the hole adjacent to the scoring blade (for adjusting the blade height) and that fixes the sensor issue. ? I do not regard this occasional fault as a design defect. Optical sensors (if that is what is under there) are inside my wide belt sander too and help maintain alignment. I occasionally have to blow those sensors clean as well. ? That all said, maybe you¡¯ve tried compressed air yourself? I¡¯d certainly feel ticked off if I had to crawl under my machine (even occasionally) to clear a fault. But compressed air works very well for me. Good luck. ? Warm regards, Lucky ? Dr David Luckensmeyer Designer & Maker @luckensmeyer M: 0413 013 115 ? |
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Re: Drive Belt Position Sensor Errors and other machine shortcomings? K940S
¿ªÔÆÌåÓýHi Mike, There are sensors on my K975 but I am not certain if they are optical. The description in the book is not detailed enough. This is what it looks like in the exploded assembly deg (item 28). I have RL125 with some 30¡¯+ ducting and several turns so I would not call it very good dust collection but I do not have an issue. I assume you have adequate dust collection. Probably not very helpful but it is a data point. Also, for my saw it just illuminates the RPM on the panel, not sure if anything would happen if it stops working. Do you have CNC option with display. In that case, maybe it is an input that matters. Just spit balling. Imran Malik On Sep 19, 2024, at 3:06?PM, Mike Hertler via groups.io <mhertler@...> wrote:
? K940S...Has anyone experience the belt speed sensors throwing on the "fault" light because the sensors are constantly getting covered in dust!? First time it happened, a quick call to Felder instructed me to just clean the sensors. That definitely is the fix but is anyone aware of any mods or advice that can help to avoid this from occurring? I take rather good care of this machine with regular cleaning/maintenance and am rather displeased with what I feel is a bad design on Felder's part. This seems to happen way more often than I would expect especially considering regular cleaning. It just seems rather silly to use an optical sensor in a place where it can so easily get covered by dust and then be such a pain to crawl under the machine and have to clean or change the belts through that small door.??
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I'm coming up on two years of ownership on this machine and constantly find myself a bit frustrated with a few things I had noticed during recent servicing including loose switches on the control panel and parts of the slide table locking mechanism coming loose. I also had the blade height mechanism lock at max height once and not react at all to any of the control switches. After speaking with tech support, they advised me to disconnect the motor from the terminal strips and power it with a 20v drill battery to make it move off it's limit. After a brief move with the drill batt and then reconnecting it, I've never had it occur again but seriously? They knew enough to know it happens and immediately offer a "fix" but no explanation as to why it occurred or how to make an adjustment? Just seemed a bit odd.
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Is anyone else displeased with the build quality of these tools? I feel for the most part everything is fine but there are just some things I am noticing that makes me question their quality and longevity when comparing to other major manufacturers such as Martin or Altendorf.?
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I would love to hear some opinions as I will soon be planning a new shop build, had considered purchasing other machines they offer but don't know if that seems like the best idea after these experiences.?
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Leemstradamus
David P. Best
David Luckensmeyer
imran
martin/campshure/co/llc
mac campshure
7412 elmwood ave.
middleton, wi 53562-3106
608-332-2330?cell
Designing and building for 50 years
On Sep 18, 2024, at 12:32?AM, Derek Cohen via groups.io <derekcohen@...> wrote:
?My Hammer A3-31 jointer-thicknesser has lived in the corner of my garage workshop for about 8 years now ...
This is okay for moderate size work pieces, but larger boards, such as the recent dining table build, requires that the machine be pulled out into the workshop for clearance. This is not so easy since its mobility kit consists of two fixed rear wheels and a wheeled bar for the front.
I decided to fit the mobile base from Timbercon, their Sherwood Heavy Duty model, as this had larger, wider wheels and a sturdy steel frame. It can also handle 680Kg, which is twice that of the A3-31. But what I particularly liked about this mobile base was the four swivelling wheels set at the two ends, which placed them away from the front. This promised good movement and less obstructions.?
The problem was now to get the base under the A3-31! Don't do this on your own, folks! Of course I did!
This machine weighs in at 290Kg and I do not have any equipment for lifting heavy objects. I discovered that a crowbar works well, pivot point down, and can gain added height with a wooden shim added underneath.
First step was to lift the rear up off the wheels using wooden wedges and the crowbar. This is the key to the whole endeavour. Adding blocks underneath, away from the perimeter (where the base will be) makes all relatively straightforward as we move along ...
This included the front, so the legs could be removed ...
The rear wheels could be unbolted at one end, and then the axel could be slid out ...
Now assemble and size the rear section of the base (the front section will be the same length, so that may be assembled at the same time) ...
Note that the front dimensions (width) of the A3-31 is shorter than the rear, hence the rear is completed first.
This is the fit at the rear ...
Throughout I used clamps to hold the base against the machine, and then to pull all together ...
Once the rear is in position, slide in the front-and-side sections together. The bolts all are tightened from the outside, so no concerns for wrenches on the inside.
Here are some photos of the fit ..
1. Front
2. Left side clearance at front
3. Right side clearance at front
One all done, it is easy to set the stationary stops (they just screw out to the desired height). You can adjust the stationary height to be perfectly level this way.
In summary, this mobile base fits like a glove. It would have been an easier process had I not had to problem solve this method at the start (where I was hoping to use a hand trolley to lift one side - oh yeah! )
Regards from Perth
Derek
Mark Foster