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Re: Bandsaw vertical table template?
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On Oct 6, 2019, at 10:29 AM, Bill Armstrong bill_1955@... [4x6bandsaw] <4x6bandsaw@...> wrote:
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Re: Bandsaw vertical table template? [1 Attachment]
开云体育Let me try this a different way, since Yapoo is not cooperating…. ?
? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Sunday, October 06, 2019 10:26 AM To: 4x6bandsaw@... Subject: RE: [4x6bandsaw] Bandsaw vertical table template? [1 Attachment] ? ? [Attachment(s) from Bill Armstrong included below] See attached. ? I downloaded this several years ago…..not sure from where. I remember checking the dim’s, and it matched up with my Grizzly saw. May be some help for you. Bill ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
? ? Members,
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Re: Bandsaw vertical table template?
开云体育See attached. ? I downloaded this several years ago…..not sure from where. I remember checking the dim’s, and it matched up with my Grizzly saw. May be some help for you. Bill ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Saturday, October 05, 2019 7:17 PM To: 4x6bandsaw@... Subject: [4x6bandsaw] Bandsaw vertical table template? ? ? Members,
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Re: Bandsaw vertical table template?
开云体育??? ??? it's just how YAHELL works these day's , there one minute
, gone the next & then back again whenever . no adjustment of
your set needed ??? ??? animal On 10/6/2019 9:07 AM,
kerrin.galvin@... [4x6bandsaw] wrote:
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Re: Bandsaw vertical table template?
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On Oct 6, 2019, at 9:07 AM, kerrin.galvin@... [4x6bandsaw] <4x6bandsaw@...> wrote:
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Re: Bandsaw vertical table template?
Hi Lee,
Just checked, & there seems to be an issue with photos! Like you i only see occasional photos too! I cant even see any of mine! Can somebody else please check if they can see any photos please & let us know? Lee, i can send you copies if you would like? Cheers Kerrin |
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Re: Bandsaw vertical table template?
I made one out of 3/4 plywood that I have used hundreds of times. It has a hinge that lets it fold flat for storage. It slides into position and is held in place by the saw vice. It also has a seat so you can straddle the saw and sit as you work. I will post a photo and dimensions later today.
Dallas |
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Re: Bandsaw vertical table template?
开云体育That guide plate as you call it, or, bearing guard, is another thing my saw is missing. Could use the pattern for that as well.On Oct 5, 2019, at 7:35 PM, Lee Rice ricelee@... [4x6bandsaw] <4x6bandsaw@...> wrote:
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Re: Bandsaw vertical table template?
开云体育Hi Rick,This is definitely an option. Thanks. Still would like to find the original pattern if possible. Lee On Oct 5, 2019, at 7:24 PM, Rick Sparber rgsparber.ya@... [4x6bandsaw] <4x6bandsaw@...> wrote:
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Re: Bandsaw vertical table template?
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On Oct 5, 2019, at 7:17 PM, Lee Rice ricelee@... [4x6bandsaw] <4x6bandsaw@...> wrote:
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New file uploaded to 4x6bandsaw
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the 4x6bandsaw group. File : /Bandsaw Chip Characteristics v4.pdf Uploaded by : john_vreede <vreededesign@...> Description : How a bandsaw blade cuts metal, incl feeds and speeds You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, john_vreede <vreededesign@...> |
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Bandsaw chip characteristics v4
Hi all I've revised this document and its in the Files section as well.? The changes are mostly from pg4 on and are the result of stuff I've learnt since it was published.? For instance the bow weight limit was calculated from the 7x12 bandsaw's setup, but since then I've destroyed a few blades experimenting with higher bow weights, and found that the limit is very practical too. Hope its more useful now - jv? ? ? |
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Re: Setting downfeed speed?
Hi Casey A std 4x6 is doesn’t adapt well to changes in material, so as Jon said, you set it up for the material you cut most and tweak the way it works for different stuff.? It’s a balance between the speed of cutting, the weight on the teeth and the number of teeth in the cut. ? Speed of cutting Soft materials cut faster than hard ones is obvious.? But it’s the speed with which the gullets between the teeth fill up that’s matters.? Cutting faster, the gullets fill up on soft materials really quick, so you have to give the swarf some place to go. If the gullet overfills, the swarf has to go somewhere, so it squishes out between the blade body and the kerf and pushes the top of the blade over and it then cuts at an angle. ?That’s why you use coarse blades (<8TPI) on soft materials. About 12TPI is right for steels. Near universal on a 4x6 is a 10-14 bimetal blade which averages 12TPI. They cut so slowly by comparison, that the gullets don’t fill up.? ?? ? Weight on teeth: Most people are cutting mild steel and the counterbalance spring is set so that the weight of the sawframe casting when its just lifted off the stop is in the range 8-10lb. ?You measure with a fisherman’s spring balance or an airport luggage weigh scale (0-88lb range $5 off eBay), hooked onto the tension knob or the handle at the top of the casting. Kitchen scales on the base casting or floor with a stick pressing on it works too. I used to leave mine set at 9lb and support it by hand when cutting softer materials like wood plastic aluminium etc, because it’s too much trouble to wind the spring in and out each time. Now I’ve put a speed handle on it, or wind it with a cordless driver/drill, with a scale on the base casting and a pointer on the moving end of the spring.? If you do adjust it, 5-7lb for aluminium works and ~3lb for wood and plastic. ? Teeth-in-cut The number of teeth in cut affects the weight on each tooth.? This important for cutting steel: too few and the teeth get ripped off the blade; too many and there’s not enough down force to make each tooth cut.? Teeth-in-cut is not so important for soft stuff like aluminium wood plastic etc. where gullet space is the issue and the material isn’t strong enough to damage the teeth.? Too fine teeth cutting aluminium and the blade WILL jam, because the swarf squishing out locks the blade into the cut.? You’ve only got seconds to turn the motor off before it burns out. Like Bruce said; never leave the saw unattended when cutting soft stuff!? The surface finish on the cut face is horrible too. Yet with a coarse blade and low enough weight on the teeth, the cut can be quite acceptable. Cutting thin sections like tube or angle is where TiC is really important, and you need to control how fast the saw blade drops through the material.? For most people holding it up by hand is effective in soft materials, but you will lose teeth off the blade at some point if you control it like that in steel.? If you cut a lot of tube, then hydraulic downfeed is the way to go.? A temporary solution is to cut some thicker waste material at the same time (a piece of thick hardwood or a bit of steel between the workpiece and the fixed vice jaw) - jv |
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Re: Setting downfeed speed?
caseysmith1717, He has posted several files that have been very helpful to this group.? Great source of knowledge! My saw is set for thicknesses I cut most of the time.? ?For the occasional thinner pieces (non-production run), I don't bother changing any settings.? I use my hand to slow the feed. |
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Re: Setting downfeed speed?
The speed that you cut depends on the material (e.g., aluminum, steel, stainless, hardened steel, solid versus thin-wall, its cross section and some other things.? I don't use my 4x6 for production cutting so the cutting speed isn't super critical.? If I'm cutting something moderately thick, I will just get it started and tend to something close by.? When it cuts through, it stops.? Then I tend to it.? If it stalls, I tend to it.? I typically will keep the cutting speed or force heavy enough that it is cutting nicely but not so heavy that it stalls out or labors. |
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Setting downfeed speed?
I recently picked up a used HF 4x6 saw. It appears to be in decent shape, and I have a new Diemaster 2 blade on the way for it. I know how to choose between the blade speed settings depending on material, but I have no idea about the actual downfeed speed of the saw. It still has the spring on it, how do I go about determining the proper tension for that? |
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Re: Belt Tension Adjustment
Hi John
The best way to get quicker belt tension is to remake the motor mount either a new one or remodel the old one. I did a sort of photoessay of mine its in the Photos section, an album called John Vreede there like 17 photos. If you build a new one along these lines you can align it more easily than if you have to use the stock holes but either will work. Big part is getting the pivots to work properly and I made short sleeves over the bolts as in photo6.? If you make a new motor mounting plate they bolt into a new bar and? you can make them any size you want and the sleeve just takes up the difference, but if you use the std mounting plate and threads the sleeve is rather thin. I use mine without a guard and its a 5 second job to change belt speed. Rgds - jv |