# Increasing Cam Size

**URL:** <https://forum.line-us.com/t/increasing-cam-size/507>\
**Category:** Drawing and Ideas\
**Created:** [January 10, 2020, 7:44pm UTC](https://forum.line-us.com/t/increasing-cam-size/507 "2020-01-10T19:44:01Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![rob](https://forum.line-us.com/user_avatar/forum.line-us.com/rob/32/8_2.png) [@rob](https://forum.line-us.com/u/rob)\
**Post date:** [January 11, 2020, 10:53am UTC](https://forum.line-us.com/t/increasing-cam-size/507/2 "2020-01-11T10:53:41Z")

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We haven’t tried it but I can’t see any major problem - we’re well within the torque spec for the servo with our setup. You might consider using some weaker springs to reduce the down-force and we have used a small nylon or (better still) PTFE shim user the cam to reduce friction. The shim does help quite a lot - DM me your address if you’d like me to send you one.

 ![image](https://forum.line-us.com/uploads/default/original/1X/2eee31c68bfedd6ae15161ca81901150614db60d.jpeg) ![image](https://forum.line-us.com/uploads/default/original/1X/36b1b9d0644550e9f63f7f92bd5f1820de6f1415.jpeg)

The worst that can happen is that the lift servo fails and they aren’t difficult to replace - it’s an Emax ES08A and they cost around £4. I’ve just [posted the guide here](https://forum.line-us.com/t/lift-servo-replacement/508) and this will help you fit your new cam too.

One other thought we’ve had is to use a mechanism similar to a napkin dispenser - mounted horizontally of course.

 ![p420_napkindispenser1](https://forum.line-us.com/uploads/default/original/1X/f609a55c881854c25ac9ecdb61f388409201c662.jpeg)

Let us know how it goes!

…rob

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