# Fake servo and holey calib. Questions

**URL:** <https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378>\
**Category:** How do I ... ?\
**Created:** [August 22, 2020, 11:28am UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378 "2020-08-22T11:28:21Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![mrgnstrn](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mrgnstrn/32/15376_2.png) [@mrgnstrn](https://forums.maslowcnc.com/u/mrgnstrn)\
**Post date:** [August 22, 2020, 11:28am UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378/1 "2020-08-22T11:28:21Z")

</div>

1. What is fake servo mode and when would I use it?

2. When doing the holey calibration, what size but do I use? Also when I measure the resulting cut is it from center to center of the holes, edge to edge, or something else?

Thanks!  
M

---

<div class="post-metadata">

**Author:** ![kayaker37](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/kayaker37/32/12681_2.png) [@kayaker37](https://forums.maslowcnc.com/u/kayaker37)\
**Post date:** [August 22, 2020, 12:05pm UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378/2 "2020-08-22T12:05:49Z")

</div>

Fake servo mode allows you to run webcontrol as a simulator. Useful if you need to test gcode and make a trial run without actually cutting anything. I have webcontrol on a laptop, but an rpi on my actual Maslow. So usually would make a run through on the laptop before I actually put it on the rpi.  
Usual 1/4 bit works, doesn’t matter. Orob just posted this image in another thread.

[![](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/d/4/d4b49e86f63366695252a999d16262b576f7cd18.png) ](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/optimized/3X/e/8/e8881fd5d0a2994161b6e61bbf92d4a85c01044d_2_690x206.png)

Edit: I have a spare arduino hooked to the laptop, so I can run the simulation while watching TV the night before, before heading out to the garage, the next day.

---

<div class="post-metadata">

**Author:** ![mrgnstrn](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mrgnstrn/32/15376_2.png) [@mrgnstrn](https://forums.maslowcnc.com/u/mrgnstrn)\
**Post date:** [August 22, 2020, 8:35pm UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378/3 "2020-08-22T20:35:22Z")

</div>

Thanks!

As a follow up, how deep does it make the hole?

M

---

<div class="post-metadata">

**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\
**Post date:** [August 22, 2020, 8:57pm UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378/4 "2020-08-22T20:57:47Z")

</div>

I just measured one at 5 mm deep.

---

<div class="post-metadata">

**Author:** ![mrgnstrn](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/mrgnstrn/32/15376_2.png) [@mrgnstrn](https://forums.maslowcnc.com/u/mrgnstrn)\
**Post date:** [August 25, 2020, 1:40am UTC](https://forums.maslowcnc.com/t/fake-servo-and-holey-calib-questions/14378/5 "2020-08-25T01:40:51Z")

</div>

thanks!

-M