Stephen_M Posted December 6, 2015 Report Share Posted December 6, 2015 I purchased my first scroll saw today. I was heading out to buy a new DW788 but decided to check out Craigslist first. I found the DW788 20 inch saw for $325 and it looked good so I went and picked it up. I took it home and tried it out but it wouldn't cut. I noticed my bade was VERY loose. I realized their was no tension screw where the blade sits in the bottom (don't know what its called). Is there a special screw required for this or can I find one that fits and use it. I somehow doubt that, but thought I would check here first. A premature thanks, Quote Link to comment Share on other sites More sharing options...
spirithorse Posted December 6, 2015 Report Share Posted December 6, 2015 By all means, if you can find out what the thread size is, you can use a knob that will fit. Here is the part I found on the web: page B.of the diagram, part number 47 of the diagram Part number 286303-00 Clamp Knob Assembly $12.03 You may also be able to find this exact part number on e-bay or on the web at a cheaper price. Good Luck and God Bless!Spirithorse Quote Link to comment Share on other sites More sharing options...
amazingkevin Posted December 6, 2015 Report Share Posted December 6, 2015 Pig in a poke,Shame on them selling you a saw with major parts missing. I purchased my first scroll saw today. I was heading out to buy a new DW788 but decided to check out Craigslist first. I found the DW788 20 inch saw for $325 and it looked good so I went and picked it up. I took it home and tried it out but it wouldn't cut. I noticed my bade was VERY loose. I realized their was no tension screw where the blade sits in the bottom (don't know what its called). Is there a special screw required for this or can I find one that fits and use it. I somehow doubt that, but thought I would check here first. A premature thanks, Quote Link to comment Share on other sites More sharing options...
redwine Posted December 6, 2015 Report Share Posted December 6, 2015 Hindsite is always 20-20 but you should have tried it out first with the sellers permission of course. You may have been able to talk the price down even more if the part was not available. How ever you probable bought a good saw once you replace the part. Redwine Quote Link to comment Share on other sites More sharing options...
Scrappile Posted December 6, 2015 Report Share Posted December 6, 2015 Check out this place. May have your part. I have purchase several parts for different tools here. http://www.ereplacementparts.com/dewalt-dw788-type-scroll-saw-parts-c-1009_2631_2632.html Quote Link to comment Share on other sites More sharing options...
jerry1939 Posted December 6, 2015 Report Share Posted December 6, 2015 A Delta is the same saw, but sells for less. Here is a parts list: http://www.deltamachinery.com/downloads/manuals/scroll_saws/40-694/40-694%20Scroll%20Saw%20Parts%20List%20Rev%203.pdf You probably need Part # 23 & 95. I assume you could find a Delta website. I don't have a clue if Delta parts also sell for less than Dewalt. jerry Quote Link to comment Share on other sites More sharing options...
Terry Jay Posted December 7, 2015 Report Share Posted December 7, 2015 Seyco sells the Excalibur parts, and the blade clamp screws are the same on both. Also, you will eventually need the insert tips and replacement set screws, they do wear out. In a pinch take any of the clamp screws to a hardware store with bins of screws, they usually have a place where you can try fitting your existing screw in until you find the right one, then you know the correct diameter and thread and can find more in the bins. Quote Link to comment Share on other sites More sharing options...
Stephen_M Posted December 7, 2015 Author Report Share Posted December 7, 2015 Thanks for all the suggestions. I'll see if I can find a Dewalt parts center (or ereplacement...) tomorrow. Stephen Quote Link to comment Share on other sites More sharing options...
Stephen_M Posted December 10, 2015 Author Report Share Posted December 10, 2015 By all means, if you can find out what the thread size is, you can use a knob that will fit. Here is the part I found on the web: page B.of the diagram, part number 47 of the diagram Part number 286303-00 Clamp Knob Assembly $12.03 You may also be able to find this exact part number on e-bay or on the web at a cheaper price. Good Luck and God Bless! Spirithorse I found a place that sells the knob assembly and the set screws. For some reason I can't find the right size hex tool to fit the set screws. If you have any idea I'd appreciate the information. Quote Link to comment Share on other sites More sharing options...
NC Scroller Posted December 11, 2015 Report Share Posted December 11, 2015 I found a place that sells the knob assembly and the set screws. For some reason I can't find the right size hex tool to fit the set screws. If you have any idea I'd appreciate the information. Likely a metric Allen wrench Quote Link to comment Share on other sites More sharing options...
Stephen_M Posted December 11, 2015 Author Report Share Posted December 11, 2015 Likely a metric Allen wrench I was thinking the same thing. I'm sure someone in the forum has a DW 788 who has the wrench. Would someone confirm that it's a metric Allen wrench? Thanks NC Scroller, I appreciate the feedback. Quote Link to comment Share on other sites More sharing options...
heppnerguy Posted December 11, 2015 Report Share Posted December 11, 2015 I believe that it is not an Allen wrench but that it is a torx Dick Heppnerguy Quote Link to comment Share on other sites More sharing options...
DWSUDEKUM Posted December 11, 2015 Report Share Posted December 11, 2015 I purchased my first scroll saw today. I was heading out to buy a new DW788 but decided to check out Craigslist first. I found the DW788 20 inch saw for $325 and it looked good so I went and picked it up. I took it home and tried it out but it wouldn't cut. I noticed my bade was VERY loose. I realized their was no tension screw where the blade sits in the bottom (don't know what its called). Is there a special screw required for this or can I find one that fits and use it. I somehow doubt that, but thought I would check here first. A premature thanks, Stephen What part of Ohio are you in? I am in Mentor ( NE Corner up by the lake ). I would get two of the holders and hold one back for a spare, just in case. DW Quote Link to comment Share on other sites More sharing options...
JustLarry Posted December 11, 2015 Report Share Posted December 11, 2015 I was thinking the same thing. I'm sure someone in the forum has a DW 788 who has the wrench. Would someone confirm that it's a metric Allen wrench? Thanks NC Scroller, I appreciate the feedback. I just used a #3 metric Allen wrench on mine a few minutes ago. Larry Quote Link to comment Share on other sites More sharing options...
Stephen_M Posted December 11, 2015 Author Report Share Posted December 11, 2015 Thanks guys. I'll google "torx" wrench and then pick up a metric Allen wrench set from Lowe's. DW, I'm in Bexley, part of Columbus. Quote Link to comment Share on other sites More sharing options...
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