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Thread: Horizontal Bandsaws
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15th Nov 2018, 09:09 PM #16
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15th Nov 2018, 09:53 PM #17Most Valued Member
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John,
thanks for the link. I'll give them a call tomorrow.
Bob,
I had a look at your posts in Your Latest Project. I like the spring tensioning button. I'll make one. Re the 10mm wide bearings- what was it you turned up? The axles the bearings run on? And what did you mean by straight and offset?Chris
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16th Nov 2018, 06:53 AM #18Golden Member
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Chris,
Yes if you want to fit 10mm wide bearings you will have to make new axles to suit, they need to be 2mm longer on the section that the bearing fits onto. The axles are in pairs one in each set is a plain one ie the bearing face is concentric with threaded section and the other one has the bearing holding section offset to the rest of the axle ie it acts like a cam.Your saw is fitted up like this as well, this is how you adjust the blade/ bearing clearance.
Bob
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16th Nov 2018, 07:16 AM #19
Hi Chris,
Did you run the blade in? This is essential to the longevity of the blade.
All good suppliers will have instructions on how to do this.
Bob is right on it in the above post when he speaks of controlling the down feed. I can't speak for a BS5As of course, but the BS4A spring needs to be slacked off for a few cuts..
The square to vertical of blade to base needs to be checked /adjusted as well as that of the square to rear of vice jaw.
Grahame
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16th Nov 2018, 08:09 AM #20Most Valued Member
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Bob,
thanks for clarifying.
Grahame,
I didn't do anything special to the blade. I'll lighten up the pressure on the blade for the next few cuts. I will certainly run-in my bimetal blade when I get one.
Do you guys change the belt setting for various materials, or just stick with one speed? If one speed, which one?Chris
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16th Nov 2018, 09:13 AM #21Member: Blue and white apron brigade
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You should use lower speeds for SS and harder materials.
eg https://www.sawblade.com/band-saw-bl...feed-chart.cfm
I forgot to do that once and completely stuffed a blade.
If you regularly cut a wide range of materials and want to leave it on one speed then leave it on the slowest or second slowest.
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16th Nov 2018, 09:55 AM #22Most Valued Member
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OK. Mine's 3 speed, so I'll leave it on the slowest. I'm not in a hurry.
Chris
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16th Nov 2018, 12:44 PM #23
Chris,
Do have a look at this Grizzly tools manual for the near equivalent bandsaw. https://cdn0.grizzly.com/manuals/g9742_m.pdf
While it is not exactly the same specs it is close enough to be useful. Much better than the crappy manual that usually comes withe the saws.
There are some very helpful entries on blade types, pitches and FPM feet per minute tables relative to different metals.
I downloaded the one similar to my BS4A and laminated the sheets and had a spiral bound booklet made so the pages can be wiped after ya get em dirty.
Grahame
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16th Nov 2018, 06:49 PM #24Most Valued Member
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Horizontal Bandsaws
Thanks Grahame, that’s a much better manual. I found the equivalent Jet manual, but the grizzly one is better.
I fitted some wheels to the stand today and had a play with the saw. Very happy with it. There’s a bit of swarf falling from the blade at the top. The red arrow shows where it’s coming from.
I reckon it could do with some brushes to remove the swarf from the blade before it enters the wheel housing. The green arrow indicates a possible location. Anyone added brushes to their saw?
Chris
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16th Nov 2018, 07:21 PM #25Most Valued Member
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16th Nov 2018, 07:26 PM #26Member: Blue and white apron brigade
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When I fitted coolant/lube I added 2 points before the blade enters the work and 2 after to wash the swarf off the blade - like this.
IMG_2978.jpg
For the flinging/dribbling of coolant off the back (an lots of other parts) of the of the saw onto the floor I added a SS tray.
IMG_6158.jpg
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16th Nov 2018, 07:29 PM #27
Hi chris,
I have done that with a 25mm x 6mm (roughly)mounted rotary wire brush,The shaft is 6mm and was fitted with some 6mm bearings .I bored out some 16mm square CRS and mounted it between the bottom guide and the pulley wheel.
I can't send a pic at the moment as I had it off the other day. I put it down and can't find it. Mine was situated so the swarf drops into a stainless gutter fitted to the side. Dunno if it would work with yours as the layout is a bit different.
Cheers
Grahame
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16th Nov 2018, 07:36 PM #28Senior Member
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Pic from hare and forbes site, is on the BS-7DS.
I am going to fit a similar wheel to my old Herless 7"(now called BS-7L) to replace the old worn out fixed brush.
4_Hydraulic-Ram-Down-Feed-Control.jpg
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16th Nov 2018, 07:53 PM #29Senior Member
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I run coolant all the time from the original single point. The second point after the cut is something I have always thought of fitting.Now that I have broken a blade it will be fitted along with the wheel.
I can`t complain about the broken blade, though annoying, its given 15 years of service through my constant abuse.
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16th Nov 2018, 07:54 PM #30Most Valued Member
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Thanks gents. Some good ideas there. I'll see if I can incorporate one or more of those into my machine. I also need some sort of swarf gutter/tray, as the swarf spills onto and around the pivot section of the saw making it difficult to clean up. A magnetically attached tray might work.
Chris
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