For bridle joints I use 2 saw blades with a spacer in a tenon hood
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regards, Rod
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Congrats, can't wait to see videos of it!
--
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Larry Long Neck
Just a noob trying to learn the ways of wood
> Making youtube videos now!
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Congratulations on the new saw and good luck with the sale.
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Oh boy,
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Here we go.
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I went to IWF and compared everything.? After seeing Albert's L'invincible's outrigger I decided on a SCM L'invincible SI 3.
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Love my kappa 400 but I wanted a parallelogram style outrigger with digital compensation.? The 'Full Support' that Albert's saw has ticked all of the boxes for me.
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PK
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PK,
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What are you replacing the kappa with?
--
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Larry Long Neck
Just a noob trying to learn the ways of wood
Making youtube videos now!
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Hello Everyone,
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I am selling my 2016 Format4 Kappa 400 x-motion located in Southern California.
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I am the second owner and the saw runs perfectly and is in very good condition.? I can send videos of whatever you would want to see about it running.
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Spec:
- 10hp 7.35kw 3ph
- 3200mm slider
- 1500mm outrigger with the large extrusion fence
- 2 axis automatic scoring
- Easy lock toolless blade system
- 1 digital stop on the crosscut fence, 2 analog stops
- Start buttons on the slider
- All Manuals
Accessories included:
- Mac's Clamps
- Brian Lamb Digital parallel guide
- 2 extra 3d printed crosscut fence zero clearance inserts
- Full surface support for the outrigger
- Slider handle
- Carriage for the outrigger
The cost of all of these accessories can easily be looked up and total over $5500 plus the Felder digital stop I added for $1300.?
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I am not in a hurry, as my new saw will not arrive for a while.
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I am asking $20k with Mac's clamps and $17k without them.
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I am posting here first.? I will wait a bit for all the other venues.
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PK
                    
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Re: Calling all bandsaw power feeder owners
Several years ago I designed and built a power feeder for my bandsaw. ?I resaw lots of 2x2 cedar, so it was designed for that purpose, and works quite well. ?I've since adapted it to my FB510. ?Here are some pics for inspiration...lol.
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Re: Calling all bandsaw power feeder owners
Murray,
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????? I find that it is good to have quite a bit of pressure pressing the board against the fence. Because even if you flatten the stock, there will always be the need to keep it as flat on the fence as possible the whole length of the cut. I find that with enough pressure and a carbide blade, I really don't have any problems with the quality of the cuts. I don't even consider blade drift. I encourage you to experiment with your feeder system and I'm sure you will figure out what you need. let us know what you find. ?? Tom Ruth
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Re: Calling all bandsaw power feeder owners
Joe,
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??? How do you like the comatic? One thing I see is that the rollers are not very high and so wondering how well they work on boards 10" plus in height? I do a fair amount of resawing 1/8" thick veneers and I find that my homemade 3 wheel pressure roller system puts even pressure on the full height of the boards so if there is some cupping, it tends to straighten it out. But I'm stuck with hand feeding unless I'm doing a ton of resawing and for that I do add a power feeder with varied results. I don't mind spending the money for a really good feeder that can do 10 to 12" boards, but I would hope that it works well. There really are not a lot of options on the market.
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Re: Calling all bandsaw power feeder owners
I have a Comatic AF110 bandsaw power feeder. It uses an air cylinder instead of a spring. There is a lever arm, so I¡¯m not sure of the power multiple. The feeder said to set the air pressure at about 60 psi on the regulator. mine has kind of a sawtooth cast-iron drive wheel. I find on smooth would like re-sign for veneer the hard steel wheel slips. I am looking to change to a polyurethane wheel.
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if undertaking the project you are, I would consider an air cylinder
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Re: Calling all bandsaw power feeder owners
Loving the ingenuity here.
My first thoughts 1. Friction - need more on the drive wheels. They look brand new out of the molds. Soak off the mold release with acetone rags and/or mineral?spirits and/or alcohol and/or lacquer thinner and compare results. Or surface with 80 grit. or glue on 80-grit abrasive. 2. Friction - need less on the sliding surfaces. Make sure table is slick. Make sure fence is slick and/or rollers. Big resaw feeder setups use robust roller fences. 3. Friction - make sure blade teeth are sharp and gullets are not getting overwhelmed with cut depth/feed rate 4. Friction - compared properly prepared boards that have smooth straight s4s jointed planed vs. bought off the shelf boards vs. rough cut boards. It's a big difference. 5. Tricky? - how to apply a good amount of tractive force, make it easily adjustable?(like air pressure and regulator setup) yet not slam with speed into the work. This I think is the biggest challenge you will next face. On Fri, Aug 16, 2024 at 9:40?AM Jonathan Smith via <jonathan.smith= [email protected]> wrote:
Murray,
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That looks like polyurethane tread on those wheels.? Given they are designed for a pallet jack, they are probably pretty hard.? A softer durometer or web center tire would allow some spring and grip better by contacting more surface area.? There are lots of suppliers out there.? You might get lucky and find just a tire that fits your wheels. ?? Don't forget to slick up the fence where wood makes sliding contact.? It makes a yuge difference on my thickness planer.
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Is that a DC stepper motor?
-- Brett Wissel Saint Louis Restoration 1831 S Kingshighway Blvd (at Shaw Blvd) St Louis, MO 63110 314.772.2167 brett@...
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Re: Calling all bandsaw power feeder owners
Murray,
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That looks like polyurethane tread on those wheels.? Given they are designed for a pallet jack, they are probably pretty hard.? A softer durometer or web center tire would allow some spring and grip better by contacting more surface area.? There are lots of suppliers out there.? You might get lucky and find just a tire that fits your wheels. ?? Don't forget to slick up the fence where wood makes sliding contact.? It makes a yuge difference on my thickness planer.
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Is that a DC stepper motor?
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Re: Calling all bandsaw power feeder owners
I have the small comatic on a minimax s500. My luggage scale ;) shows 5 - 7 kg depending on swing. Running a 1¡± carbide resaw, the wheels ?
do slip on bigger hardwood rips. I¡¯m using a laguna driftmaster with the extruded fence. May try to set up a roller fence of some sort to see if it helps.
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Re: Calling all bandsaw power feeder owners
Murray,
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You have initiated an interesting project. Other colleagues on this forum are much more knowledgeable than me and will surely chime in with valuable ideas and recommendations.
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My first thought is that the pressure required should not be ? very high ?. Since the blade is supposed to do the work, not the operator, one would want to ensure that friction against the table and the fence is kept to a minimum. Should this thinking be valid, the parameters would therefore become ? grip ? on the wheels and ? speed ? (I.e. rate of feed).
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Just some thoughts.
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Regards,
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Jacques
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Does anyone have a picture of Helicoidal infeed roller. I am trying to imagine it from the definition of a helicoid surface. An auger is the closest analogy that I can come up with for a helicoid surface. This to help visualize, not sure if it actually is a helicoid.
So I imagine that this roller has one or more ridges, on the surface of the roller, that wrap around the shaft as they go from one end to the other.
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On Aug 16, 2024, at 8:46?AM, mac campshure via groups.io <mac512002@...> wrote: ? Just to add from my limited experience machining plastics with steel rollers straight , spiral and sectional all worked fine for HUMW , Delrin I have no experience with rubber rollers.? Mac,, Designing and building for 50 years On Aug 16, 2024, at 6:46?AM, mac campshure via groups.io <mac512002@...> wrote:
? Thats a nice feature, my okoma has? helicoidal steel roller and has been working fine.? ? mac,,,
martin/campshure/co/llc
mac campshure
7412 elmwood ave.
middleton, wi 53562-3106
608-332-2330 cell 608-824-0023 fax
instagram.com/maccampshure/
Designing and building for 50 years
On Thursday, August 15, 2024 at 11:55:24 PM CDT, netanel.belgazal via groups.io <netanel.belgazal@...> wrote:
There is another advantage to the helicoidal steel roller, you can do the quick change with it if you ever wanted to get a rubber one for a particular reason, like running plastics, for instance.? The sectioned one cannot be uninstalled easily.
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Just to add from my limited experience machining plastics with steel rollers straight , spiral and sectional all worked fine for HUMW , Delrin I have no experience with rubber rollers.? Mac,, Designing and building for 50 years
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On Aug 16, 2024, at 6:46?AM, mac campshure via groups.io <mac512002@...> wrote:
? Thats a nice feature, my okoma has? helicoidal steel roller and has been working fine.? ? mac,,,
martin/campshure/co/llc
mac campshure
7412 elmwood ave.
middleton, wi 53562-3106
608-332-2330 cell 608-824-0023 fax
instagram.com/maccampshure/
Designing and building for 50 years
On Thursday, August 15, 2024 at 11:55:24 PM CDT, netanel.belgazal via groups.io <netanel.belgazal@...> wrote:
There is another advantage to the helicoidal steel roller, you can do the quick change with it if you ever wanted to get a rubber one for a particular reason, like running plastics, for instance.? The sectioned one cannot be uninstalled easily.
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Thats a nice feature, my okoma has? helicoidal steel roller and has been working fine.? ? mac,,,
martin/campshure/co/llc
mac campshure
7412 elmwood ave.
middleton, wi 53562-3106
608-332-2330 cell 608-824-0023 fax
instagram.com/maccampshure/
Designing and building for 50 years
On Thursday, August 15, 2024 at 11:55:24 PM CDT, netanel.belgazal via groups.io <netanel.belgazal@...> wrote:
There is another advantage to the helicoidal steel roller, you can do the quick change with it if you ever wanted to get a rubber one for a particular reason, like running plastics, for instance.? The sectioned one cannot be uninstalled easily.
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Calling all bandsaw power feeder owners
Hi all, I'm currently in the process of making, or more correctly attempting to make, a bandsaw power feeder. It is a bit of an experiment and I'm quite prepared for it not to work, it's mainly been put together with bits and pieces I either had lying around or could acquire cheaply.
I managed to buy a pallet of five brand-new table saw power feeder support arms cheaply at a machinery auction. I figured that these could be adapted to the bandsaw.
I've modified the head where the normal power feader would attach so that I can attach a worm drive gearbox, from here I have two pallet jack wheels mounted as the drive rollers.
The power feeder support arms are very well made, the shafts are all precision ground and the cast-iron components are also accurately machined. I found that by loosening the lower mount slightly the vertical and horizontal alarms rotate smoothly with little friction and no perceptible slop.
I currently don't have any spring? system to apply pressure to the drive wheels to push against the workplece. I have the system to the point where I can power it up and manually push the horizontal arm. I have it running very slowly and it pushes timber okay . I tested the force generated by putting various weights in front of the timber and it seems that it will slip prematurely. That is I don't think it's generating enough force to push a sizable workpiece past the blade . The system has heaps of torque so that's not the problem.
I'm guessing this is an issue generally with bandsaw feeders as various models have serrated metal wheels and sometimes wheels similar to mine but with self stick sandpaper applied.
At this stage I would like to know how much force the spring loaded mechanism applies to the drive rollers in a commercial power feeder? I'm not after an exact force just some feel for whether it's modest high or very high.
I used a digital luggage scale to do some testing and I think my manual, "pushing with my arm", arrangement is generating somewhere around 25 to 30 kg.
So I'm trying to decide what to do next, either apply some self stick sandpaper to the wheels, or build a spring mechanism which produces higher force. I'm guessing that my 25 to 30 kg should be more than enough and that the slickness of the drive wheels is the issue.
Thanks in advance
Murray
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There is another advantage to the helicoidal steel roller, you can do the quick change with it if you ever wanted to get a rubber one for a particular reason, like running plastics, for instance.? The sectioned one cannot be uninstalled easily.
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Rubber feed rollers are a wear item that require replacement over time depending upon use conditions. ?The photo below illustrates the rubber feed rollers out of my Dual 51 after several years of use. ?The one on the top is the infeed roller, and you can see how the leading edge of a board going into the roller scores and chews off some of the rubber. ?Feeding lots of different thickness parts accelerates this wear. ?
Various places in the USA will recover rollers with 50, 60 or 70 durometer (your choice, I pick Mauve color) polyurethane. ?You must remove the rollers, send them off to be recovered, then reinstall. ?The last time I did this, it took 30 minutes to get the rollers out of the Dual 51, two weeks to get them recovered at a cost of about $350, and another 30 minutes to reinstall the rollers. ?If you order the Dual 51 with rubber rollers, the machine is provisioned to make it easy to get the rollers out and then back into the machine. ?I have seen other Felder J/P where doing this is an all day job requiring tons of disassembly to get the rollers out (example below of AD951 showing sectional pressure bar components that had to be removed to get to the rollers), so check on this.
David Best
DBestWorkshop@...
https://www.flickr.com/photos/davidpbest/collections/
https://www.youtube.com/@David_Best
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On Aug 15, 2024, at 1:45?PM, Airtight: Clamps by Air Compression via groups.io <airtightclamps@...> wrote:
The problem with rubber rollers is board gets stuck in the roller and it chows it out now you gotta replace it , use spiral roller steel, and won¡¯t have that problem. I suspect that was section and feed roller. You also need sectional chipbreaker. This is advantageous for feeding different thicknesses of material through at one time and they¡¯ll come out the same rubber rollers will also accomplish that. If there¡¯s a little difference in the thickness of the material say a millimeter or two. my advice is stay away from rubber just a big pain in the ass. Not speaking from experience I¡¯m a sectional guy or spiral, but I ordered and replaced lots of damage river rollers for clients. Mac,, Designing and building for 50 years On Aug 15, 2024, at 2:24?PM, netanel.belgazal via groups.io <netanel.belgazal@...> wrote:
? I am going back to the feed roller.
I initially thought the feed roller that comes with the FS7 by default is the rubber roller.
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In fact, the machine comes by default with helicoidal steel roller. Changing it to sectioned steel roller is an option that costs an additional $1000,
Sam recommended the helicoidal (unless I am running a lot smaller parts at the same time)
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rodsheridan
Larry Long Neck
PK
Joe Jensen
Jonathan Smith
imran
David P. Best