How To Fix Porter Cable Scroll Saw Blade Wobble
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New Scroll Saw - Porter Cablevision 375SS -- Opinion Needed
Almost 2 months agone I bought a Porter Cablevision 375SS at Lowes. Seemed like a reasonable choice given likely usage and budget. Initial use was to cut about fifty cardinals from 5/16" balsa - non a real tough assignment. The problem and question:
Seems to me that at that place is excessive lateral movement in the blade. On downstroke, blade shifts slightly to right; at kickoff of upstroke it shifts left. It looks similar it does this worse at low speed than high, but I can't really measure it. Took information technology to B&D service center and they seemed to recollect it was all normal.
Last night I videoed just what information technology's doing. https://www.hightail.com/download/dD...MVgrV3hBSXRVag
And then, is what I am seeing "normal"? What if any problems am I going to run into?
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Hullo, Bob,
No, that'south not normal. In that location should be NO lateral movement of the bract. I've used older model PC gyre saws for marquetry, where you need a precise cutting, and the bract tracks true laterally. If I call back correctly, there is pregnant front-to-back movement of the bract due to the style that the arm swings, but side-to-side it should runway exactly straight. I can't tell what the problem is, but there'due south something wrong. Best case, if you use it like this, you'll become a lousy cut. Worst case you'll intermission a bunch of blades (which happens ofttimes plenty anyway, especially with thin blades).
Expert luck with this.
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Simply out of curiosity, how much did you get it for?
If at beginning you lot don't succeed, redefine success!
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Not normal. Looks like bract is not tensioned properly. Check blade tensioning. Ensure install bottom of blade, pull up bract and bottom arm to snug up to elevation arm, tighten top, and then tension.
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You might exist right, Guy. It's hard to tell, only when Bob plucked the bract at the beginning of the video information technology made a nice high annotation, so information technology seems like there is decent tension on the blade, merely certainly a possibility. I'chiliad guessing more something wrong with the arm(s). I would check the bushings and make certain all the bolts are tight, as a start.
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your tension is expressionless on. Past lookin' at the blade in move, you've got a vibration somewhere the faster the speed. Obvious, huh? Practice ya have whatever backlog movement(back & forth) in the lower arm? make sure all the bolts are tight. At the back of the saw, there is a small plate, peradventure with ii screws holding it in place. Under that is a wedge. Check to see if that wedge is in place, & lubed. Yous'll have to accept the side of the saw apart to get to that wedge. With the side off, y'all'll exist able to bank check things inside the saw. Check the threads on the tension adjuster, as well. If that wedge is "sharp" on the bottom edge, take information technology out & file information technology to a smoother edge. Other than a bearing goin' bad, I don't know of anything else that would cause your issue. I'm a curlicue sawyer myself. Take been for close to 25 years. I ain 5 saws of my own, & have seen this result before. I've never been effectually a pc, only by looking at the parts diagram, it'south a elementary machine. If I tin can help any further, pm me & I'll exist glad to practise what I can. Good luck, & God bless.
Final edited past Brad Barnhart; 03-04-2017 at nine:42 PM.
Sawdust703
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Thank you for everybody's comments. It'south already had one fruitless trip to the Stanley / Black & Decker Repair Eye in Columbus. Saw is brand new, so it shouldn't have any worn bearings, but who knows. I'll follow Brad's suggestion and try opening upwardly the back and see what I discover. Earlier taking information technology to B&D I had taken lower cover off the left side and hand-turned the drive. Looked like worst of the movement was coming from bottom, only I couldn't tell why. The blade holders have a lot of wiggle to them, merely I don't recall they're at fault.
Worst case, it'southward back to Lowes for a swap. But I'd like to have some confidence that this particular saw was just poorly made - not a fundamental pattern fault.
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I spent some time looking at whorl saws - including this one, on auction at lowes for well-nigh $189 - and decided against it so my suggestion is to take information technology back. Be aware, even so, that I know side by side to goose egg about scroll saws, ran a thread hither asking for advice and had well-nigh everyone tell me to get the dewalt, and then bought a xvi" shop flim-flam for nigh the same toll as your PC.
The store play a joke on, incidently, has a existent cast iron table; a terribly sucky piece of work light, and overall pretty good performance for what I am doing with it (which is not going to include all-encompassing utilise of obviously cease blades - they're almost impossible to put on when the workpiece is in place.)
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Pitiful for the reply delay. Thought I had answered earlier. Got the saw for $198 + at Lowes.
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Grasping at straws, but could it be that the set screw, opposite to the pollex spiral, is not adjusted correctly? Information technology seems to me that the bottom of the blade moves left and right only the top looks to be pretty stable. If you adjust the bottom set screw to move the lesser of the bract to the right, it might help.
How To Fix Porter Cable Scroll Saw Blade Wobble,
Source: https://sawmillcreek.org/showthread.php?252568-New-Scroll-Saw-Porter-Cable-375SS-Opinion-Needed
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