# Holddown Tape adhesive sticking to cutter **URL:** \ **Category:** 📄 General\ **Created:** [March 20, 2025, 7:59pm UTC](https://forum.sienci.com/t/holddown-tape-adhesive-sticking-to-cutter/16570 "2025-03-20T19:59:56Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![\_Michael](https://forum.sienci.com/user_avatar/forum.sienci.com/_michael/32/2962_2.png) [@\_Michael](https://forum.sienci.com/u/_Michael)\ **Post date:** [March 21, 2025, 12:28am UTC](https://forum.sienci.com/t/holddown-tape-adhesive-sticking-to-cutter/16570/2 "2025-03-21T00:28:07Z")
If you have surfaced your spoil board you can reference the spoil board instead of the top the wood and get a cut that just barely cuts through the wood. That might help. I’m linking a post of mine that has a video on how to do it. To sum it up you either set Z0 to the spoil board in your CAD/CAM and machine or keep Z0 at the material surface in CAD/CAM and set the Z with the paper method on the spoil board but instead of hitting the zero Z button you click on the Z number and enter -material thickness. So if your wood is 3/4" and you set the height of the spoil board to -0.75" then zero is at the top of the wood. This cuts out the error from uneven wood and because you surfaced the spoil board you can get accurate through cuts. > [@\_Michael's Dovetail Guide](https://forum.sienci.com/t/michaels-dovetail-guide/9289/12): > > The spoil board grid was done with my laser. It is centered on the spoil board. If you have the sensors and can home your machine, I suggest writing down the machine coordinates of the center position as well as saving them to a workspace or making a macro in gSender. That way you can always get your machine centered quickly. Here is my spoil board graphic, in crv and svg format. Vectric Desktop let me create a project bigger than 24"x24". I’m assuming it just won’t create the G-Code for such a… It works well enough that I can keep the laser job on my spoil board for a long time. --- _[View the full topic](https://forum.sienci.com/t/holddown-tape-adhesive-sticking-to-cutter/16570)._