ec2121 Report post Posted November 30, 2014 After putting a speed reducer I had a little thinking to do on how to mount the servo.... well, this is what I came up with. It was really simple. Just some angle iron and some bolts and it worked. I really like the control I have now..let me know what you guys think.. I just finished it.. Quote Share this post Link to post Share on other sites
Constabulary Report post Posted November 30, 2014 why not directly under the table plate - no space? Quote Share this post Link to post Share on other sites
SARK9 Report post Posted November 30, 2014 One of the issues I've encountered when using a speed reducer in conjunction with a servo is the loss of the ability to tilt the machine head back for routine servicing. To obtain the required clearance between the large reducer pulley and the motor pulley, the reducer is almost always required to mount slightly foreward (towards the operator), thus altering the rotational geometry between the machine head and the pulley driving its belt. The result: Tilting the machine head back TIGHTENS the belt rather than loosening it, making it impossible to tilt back in the normal way. The seat-of-your-pants cure I've used in an attempt to make this somewhat more sanitary is to install an intermediate offset plate/servo mount to move the servo BACK and allow the SR to regain the critical location for the normal rotation of the machine head. It requires a bit of thickish plate and some drilling & tapping, but no alteration of the table or belt slot, and uses existing bolts and mounting holes. -DC Quote Share this post Link to post Share on other sites
Constabulary Report post Posted November 30, 2014 I have no issues with this. I think the SR just has to be mounted behind the hinges of the machine, thats it - or not? Quote Share this post Link to post Share on other sites
SARK9 Report post Posted November 30, 2014 >>I think the SR just has to be mounted behind the hinges of the machine, thats it - or not?<< Correct- Its a bit hard to do that without the larger SR pulley contacting the motor pulley (if you want to use the existing motor mount holes, leave the carriage bolts in place and not modify the table's belt slot). Nice table BTW- Is it wider than 54cm? The commercial 21 inch tables are about as wide as we commonly get here, so the back edge limits how far I can move things. -DC Quote Share this post Link to post Share on other sites
Constabulary Report post Posted November 30, 2014 (edited) Yeah - thats the point, my table is about 61cm and I have not used the original holes. Seems the table had more than 1 motor before I got it and I had mounted at least 3 different motors . I have learned from that and will never drill holes in tables again. I always use wood screws with hex head. This works fine since the modern servos are not very heavy. Edited November 30, 2014 by Constabulary Quote Share this post Link to post Share on other sites
ec2121 Report post Posted November 30, 2014 I didn't have enough room to mount both, so I can up with this. The speed reducer is mounted behind the head. As you can see I have zero issue with tilting the head. The belt loosens as it tilts back. Quote Share this post Link to post Share on other sites
