Mounting servo on top of table

[dikman]

Leecopp, in the case of SARK9's motor it is tightened in place by the large nut and bolt at the motor pivot point. I figure it shouln't be hard to make up a tensioning device if necessary. As I'll be using a conventional table I'll be mounting the speed control like SARK9 has done, should be easy as it is already mounted on a suitable bracket.

Michiel, looks like that workbench has seen a lot of use!

Edited October 7, 2018 by dikman

[Matt S]

Here is a machine I mounted on an old cutting board. It's a feed-up-the-arm so doesn't get used enough to warrant a table of its own. I mounted the servo on top so I can chuck it on the bench when I need to use it or keep it on the shelf otherwise.

9 hours ago, leecopp said:

Is the belt being tensioned by the weight of the motor or am I missing something.

1 hour ago, dikman said:

Leecopp, in the case of SARK9's motor it is tightened in place by the large nut and bolt at the motor pivot point.

Same with the motor in these pictures, and a few others I have. It's pretty efficient and quick to adjust, whichever way up the motor is mounted.

 

[DonInReno]

I’d have to have some sort of speed reducer - perhaps something compact like on a Sailrite, or a well thought out compact 2:1 model with a largish 1000w servo.

[R8R]

Artisan makes a "portable" 335 machine:

 

 

I am going to stop by there soon, they moved to a new location in San Bruno south of SF, which is a little closer to me now. I'll take some pics.

 

 The 1100w positioner motor Keystone is selling would work great on many different versions of this kind of setup. With a big enough pulley on the machine, no reducer required.

[dikman]

4 hours ago, DonInReno said:

I’d have to have some sort of speed reducer - perhaps something compact like on a Sailrite, or a well thought out compact 2:1 model with a largish 1000w servo.

I've taken care of that with a 7" pulley on the head and a 1 3/4" for the motor, which will give me 4:1. I'm a great believer in fitting larger pulleys on the head as it's much simpler than making reducers with shafts, bearings and pulleys and then trying to figure out how to mount the thing (I now have several in a box!), plus it makes handwheeling easier.

Nice one Matt. Lots of good ideas coming out of the woodwork.

Edited October 8, 2018 by dikman