# Problems with making tight cuts **URL:** \ **Category:** Troubleshooting\ **Created:** [May 9, 2016, 2:18pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502 "2016-05-09T14:18:20Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![EmilJacobsen](https://avatars.discourse-cdn.com/v4/letter/e/8baadc/32.png) [@EmilJacobsen](https://community.inventables.com/u/EmilJacobsen)\ **Post date:** [May 9, 2016, 2:18pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/1 "2016-05-09T14:18:20Z")
Hi folks, I have been using my X-carve for quite some time now, cutting all kinds of figures and shapes. All coming out quite nice. Lately (yesterday) I tried making a tapped box with the use of a SVG created at a online generator. The cuts are perfect in shape, however the tabs do not fit tight together. I am using a 3,175mm single-flute bit, which seems to be running smothely through the wood. Does anyone have any experience with such a problem? ![](https://canada1.discourse-cdn.com/flex009/uploads/inventables/original/3X/a/2/a24615eb78aa5d331b1eff1c040119910a24ee69.jpg) ![](https://canada1.discourse-cdn.com/flex009/uploads/inventables/original/3X/8/d/8d0726b2f2ab8fc3273fdcf878d4c05f7fa4b7d2.jpg) I made a test-cut to make sure it wasnt the generated file which caused the problem. And it was not. ![](https://canada1.discourse-cdn.com/flex009/uploads/inventables/original/3X/0/5/05b98c7ae6ac3dcfb5dd6a55f1ab7a826cf6ce31.jpg) Any help would be appreciated, Thanks 😊 ---
**Author:** ![ErikJenkins](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/erikjenkins/32/84368_2.png) [@ErikJenkins](https://community.inventables.com/u/ErikJenkins)\ **Post date:** [May 9, 2016, 2:25pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/2 "2016-05-09T14:25:10Z")
The bit may not be exactly 3,175 mm. If the bit size is off a little, it will make the joints too tight or too loose…depends on if the bit is oversized or too small. Have you measured the bit? ---
**Author:** ![EmilJacobsen](https://avatars.discourse-cdn.com/v4/letter/e/8baadc/32.png) [@EmilJacobsen](https://community.inventables.com/u/EmilJacobsen)\ **Post date:** [May 9, 2016, 2:36pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/3 "2016-05-09T14:36:56Z")
I had the same thougt, however these Bits are increable hard to measure. I did however try to change the bit size in Cut2D to a few different sizes (between 3,00mm to 3,30mm) and it did not change the outcome. Maybe I should try a different bit that I more easily can measure? ---
**Author:** ![NAM37](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/nam37/32/67432_2.png) [@NAM37](https://community.inventables.com/u/NAM37)\ **Post date:** [May 9, 2016, 2:40pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/4 "2016-05-09T14:40:11Z")
Did you verify the thickness of the plywood? ---
**Author:** ![cncrockstar](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/cncrockstar/32/82500_2.png) [@cncrockstar](https://community.inventables.com/u/cncrockstar)\ **Post date:** [May 9, 2016, 3:00pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/5 "2016-05-09T15:00:46Z")
If you want to know the exact size, drill a hole or cut a slot and measure it. All bits are Undersized. ---
**Author:** ![EmilJacobsen](https://avatars.discourse-cdn.com/v4/letter/e/8baadc/32.png) [@EmilJacobsen](https://community.inventables.com/u/EmilJacobsen)\ **Post date:** [May 9, 2016, 4:59pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/6 "2016-05-09T16:59:41Z")
@NAM37 I did, and it measure 12mm excatly, so that was not the problem 🙂 @cncrockstar Thanks for the advice! I made a hole, and measure it for around 3.5mm, quite more than 3.175mm as the seller claimed. I have tried making a new test-example and it fits much better! I will try make a new box later, and see how it turns out 🙂 👍 ---
**Author:** ![cncrockstar](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/cncrockstar/32/82500_2.png) [@cncrockstar](https://community.inventables.com/u/cncrockstar)\ **Post date:** [May 9, 2016, 5:11pm UTC](https://community.inventables.com/t/problems-with-making-tight-cuts/23502/7 "2016-05-09T17:11:15Z")
If it’s larger than you expect, check runout. Make sure the but is straight in the collet.