My Two SECRETS to Perfect Splines!!!

If you want perfect miter splines in wood boxes then make this miter spline jig. Plus, I’ll give you two secrets to getting even better, dare I say PERFECT splines. Adding a spline to your miter joint gives your project a sense of sophistication. Getting perfect splines doesn’t have to be difficult. Making this spline jig takes practically no time at all and once people look at those incredible splines in your wood boxes, they will be envious of how you made it look so easy. Making a miter spline jig alone won’t give you absolutely perfect splines. There are two more secrets that I use. They will give you crisp spline cuts that you’ll be proud of.

•• About NewtonMakes••
I’m Billy and I make fun things. Sometimes, it’s something I need like tool storage ideas. Other times it’s silly or nerdy stuff that I want to build. If you want to get ideas for making stuff, or just want to watch something entertaining then make sure you subscribe.

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Here’s a list of tools and materials that I used to make this project. As an Amazon Associate I earn from qualifying purchases.
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[johnisley]

Just come across your channel, it's great and your instructions are clear. You've got my subscription. Cheers

[Dirtydetective]

So, I watch a lot of these shows from various carpenter content creators and I like the way you explain and show your methods better than anybody. Matter of fact it's mostly because of you that I'm turning out some of the most beautiful walnut, purple heart, red oak, etc boxes any of my friends or clients have ever seen. I've made a pretty good sled, using plastic veneer as the t part of my slots which gives it that super smooth motion, however the jig I made for making splines is way different than the one you just made, mostly because of the saw I built it for, (a 113. Craftsman, but now I'm using a delta 366023 and the jig, which I made using bearings as wheels that straddle my fence only partially works, so I'm off to the big box for some plywood since MDF is impossible to find in smaller sections so I can replicate what you just made, thank you for your ideas, advice and honesty. The way you handle the products people send you also shows you've got one of the most important ingredients when it comes to making a good person, integrity.

[NewtonMakes]

I get asked how to make this spline jig all of the time. So I made this video to show how to make one. I tried to include measurements for the parts too so you can avoid having to buy woodworking plans if you want to make it at home. If you make it then let me know in the comments section how cool your splines turned out!

[SlowNLow]

Dude you make these videos so easy and understandable!! Thank you!

[cashmerecarpenter]

Great instructions, really awesome jig. Will be using it on a jewelry box for my daughter.

[spamcan]

Whoa.. the straw trick to clean up clue seems genius. Definitely going to try that out!

[Sebastopolmark]

GREAT project. I do like that you put the screws into the runners from the top. Even hardwood can expand when you put screws from the bottom and that creates more problems that it's worth. So, top it is! !! !!!

[kreech]

thank you - that's a nice, clean, simple, functional jig

[alansmith]

G'Day from AUSTRALIA!! Just found you on YouTube with your excellent spline jig!!! I've checked out the majority of the YouTube spline jig videos and yours is by far the best mate!!! The most versatile and safest, not to mention so easy to make!!!! I'll be making mine tomorrow!!! Got to put some splines in a special picture frame I just made for my son and Dau-in-Law! It will look special!!!! Cheers from Downunder!!!!

[jimmydee]

Excellent instructions!! Thank you for taking the time to video your process.

[kendavidson]

Brilliant video no frills and bells but effective, I have just made a jig and waiting for the glue to dry on a box I just made.thank you for your demonstration I was put off making one having seen ones with tracks and bevels all over the place.thank you

[jeffw]

Great tip on adding the sacrificial wood for a zero clearance. I was getting tear-out and never thought to do that.

[jameslockwood]

I built a spline box jig like the one you showed... works great!

[joepearson]

I am going to make this jig. I made a spline jig before that was so bad. Solines turned out okay, but not because of the jig. That went directly to the scrap wood pile. Thanks for this. I could definitely use it all the time.

[Hotrod]

Seen a few on you tube yours is the best for my situation, thank you sir!

[jeffw]

Great idea adding the scrap wood for a zero clearance, I was getting blow-out and never thought to do that.

[wayneblythe]

“Some gorgeous figured walnut ohhh!” I think you and that walnut should get a room. Nice video 👏🏻👍🏻

[elizabethhappiestwhengarde]

Beautiful work and detailing! I enjoyed your video making the spline jig. I'm interested in making a narrow sofa table and would love to add splines. But I'm having a hard time finding a video showing how to make a portable jig for large pieces. Do you have such a video?

[catherinechute]

I wish you spent more time on how you cut the keys. I have a jig for cutting kerfs but would love more info on the saw you used to cut the brass and what you were doing with the dremmel. Also how did you match the width of the brass to the kerf accutatly?

[michaelbradford]

I made one identical to yours several months ago and it's amazing! I put splines in almost every box I build which is quite a few and this sled makes it so easy to make the cuts and make them uniformed . I've experimented and centered a1 inch spline on each corner and they came out really nice . In truth I had messed up and was trying to salvage the box and it worked!