BMS Posted October 1, 2016 Report Posted October 1, 2016 I cut a box using a jigs saw so it ins't completely straight will the wood glues seal the cracks and hold up to pressure and time?
Broke_Audio_Addict Posted October 1, 2016 Report Posted October 1, 2016 If the gaps are bad no. You could have used a straight edge and got pretty straight. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.
BMS Posted October 1, 2016 Author Report Posted October 1, 2016 could i add silicone or something what is considered bad 1/8 inch
baron_of_bass Posted October 1, 2016 Report Posted October 1, 2016 What you might be able to get away with is taping up the outsides that have gaps, and use resin just tilt the box to the sides that have the gaps. Maybe throw some milled glass in the resin mix. Team Bass-Hz
audiofanaticz Posted October 2, 2016 Report Posted October 2, 2016 could i add silicone or something what is considered bad 1/8 inch Anything over 1/32 of an inch is bad in my books and means it needs to be re-cut. You can use a straight edge with a jigsaw and get fairly straight cuts. A large T-Square works well, so would a long level. Just measure the blade offset and adjust the straight edge accordingly and clamp it to your wood and while cutting keep the jigsaw tight to your straight edge. Id stay away from silicon, it adds no real strength, but it would seal it. A construction adhesive like PL Premium would be better to squeeze into the gaps if the box is already assembled. Then for extra reassurance I would do what Barron said and fiberglass the inside and add a little cloth or chopmat to the resin where the gap is (or every joint where 2 pieces of wood meet).
Skullz Posted October 2, 2016 Report Posted October 2, 2016 Mix some glue and sawdust and make a paste that you can use to fill the corners with as a fillet if you don't have any resin or epoxy to fill the gaps with. 01 Ford focus ZX3 Pioneer AVH-X491BHS PPI PC 4800.2 Morel Maximo 6.5" x2
Mr DeeBeez Posted October 2, 2016 Report Posted October 2, 2016 ^^^That works really well. Thats what i have done. Hardens really hard and is pretty much all mdf is, Sawdust and glue pressed together. Fi Team 18's (4) Crossfire 16k Crossfire 400.4 & 800.4 Pioneer AVH-X491bhs 140ah cmax CES 320's (2)
Triticum Agricolam Posted October 2, 2016 Report Posted October 2, 2016 Like others have said, recutting the panels would be best. If you don't want to do that, an adhesive like PL Premium has really good gap filling ability and would probably be your best bet. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds:
Jessica Posted October 2, 2016 Report Posted October 2, 2016 i have never had luck using a straight edge with a jigsaw because the blade bends and pulls the saw. i guess its worth trying though. I got sick of fucking around and bought a nice 4ft aluminum straight edge, some clamps and a circular saw. I never have an issue with straight cuts anymore. It can be a fair amount of cash to invest in those tools if you dont have a lot of income but it is really worth it. If you dont want to do that, go to a "farm and home" in a smaller town and talk to the guys and offer to help with cuts and they will cut whatever you want on a good table saw. Just explain you are building a box and the cuts gotta be precise, try to minimize odd sized panels and make as few cuts as you can so you arent moving the fence around too much. You might have to give them an extra few bucks for the cuts but you wont have a jigsaw puzzle when you are done. Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13
audiofanaticz Posted October 2, 2016 Report Posted October 2, 2016 Mix some glue and sawdust and make a paste that you can use to fill the corners with as a fillet if you don't have any resin or epoxy to fill the gaps with. ^^^That works really well. Thats what i have done. Hardens really hard and is pretty much all mdf is, Sawdust and glue pressed together. The glue and sawdust mixed together works okay but ideally it is not the best. Its great for filling holes but when needing it to act as something structural it is no bueno. When MDF is made it is bonded with the woods own natural resins, some companies may add in additionally additives such as wax or other resins. Typically glue is not used in the making. You then have what is essentially 6+ inches of fibers (sawdust) that forms a continuous mat which then gets a slightly pressed to remove air pockets, followed by a hot press at over 7000 PSI to achieve the woods thickness, and the heat is to activate the resins. Then the boards are cut to size and left to cool. There is more that is done to the wood in the earlier stages, but those are the basics. Anyways the point of me saying that is due to mixing glue and sawdust together will not allow you to create anything near the original form of mdf. The dried glue will be rather brittle (similar to fiberglass resin when you dont use any cloth or chopmat) and since you have no way of heat pressing it together at such a high PSI the saw dust will add very minimal strength at best.
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