Guest zidder Posted January 30, 2015 Share Posted January 30, 2015 (edited) Remote Display Angle Sensor Encoder with Shaft http://www.ebay.co.uk/itm/Remote-Display-Angle-Sensor-Encoder-Shaft-Rotary-Table-Dividing-Head-/390837006581?pt=UK_Measuring_Tools_Levels&hash=item5affb370f5 This looks interesting and great price, could this be used on a dob base instead of setting circle ? Apologies if links aren't allowed Edited January 30, 2015 by zidder Link to comment Share on other sites More sharing options...
Daz Type-R Posted January 30, 2015 Share Posted January 30, 2015 Encoders have been mentioned a few times before, I do not see why they would not work, I just have no idea how accurate they are? I`m not even sure if any of the dob owners on EMS have encoders or not, it has been talked about and some body was looking at one once but i don't believe they ever got round to doing it. If you go for it you would be the first I believe. Remember you will need to power it somehow. Link to comment Share on other sites More sharing options...
Guest zidder Posted January 30, 2015 Share Posted January 30, 2015 (edited) Encoders have been mentioned a few times before, I do not see why they would not work, I just have no idea how accurate they are? I`m not even sure if any of the dob owners on EMS have encoders or not, it has been talked about and some body was looking at one once but i don't believe they ever got round to doing it. If you go for it you would be the first I believe. Remember you will need to power it somehow. Accurate to 0.1 deg. The gauge is powered by a standard CR2032 battery located behind a twist lock compartment on the rear of the display. Edited January 30, 2015 by zidder Link to comment Share on other sites More sharing options...
Daz Type-R Posted January 30, 2015 Share Posted January 30, 2015 If you believe all the blurb I'd say go for it, interested to see how it would be fitted, it's a bit of a chunky beast unless your going to strip it down? Link to comment Share on other sites More sharing options...
Doc Posted January 30, 2015 Share Posted January 30, 2015 I have fitted one of these in the past. I drilled a hole in the top of the centre bolt, inserted the encoder shaft and then secured the shaft via a little grub screw I tapped the hole for. It worked to a fashion but it was not as accurate as I had hoped for. Get more accuracy via the setting circle. Link to comment Share on other sites More sharing options...
Brantuk Posted January 30, 2015 Share Posted January 30, 2015 They're only £32.50 from the company who supply them: http://www.machine-dro.co.uk/angle-measurement-digital-gauge-protractor/rotary-angle-encoder-and-remote-display-with-a-6mm-diameter-shaft.html They reckon it's accurate to one tenth of a degree and they take phone enquiries about their products (subsidiary of Allendale Electronics). Link to comment Share on other sites More sharing options...
Guest zidder Posted January 30, 2015 Share Posted January 30, 2015 (edited) They're only £32.50 from the company who supply them: http://www.machine-dro.co.uk/angle-measurement-digital-gauge-protractor/rotary-angle-encoder-and-remote-display-with-a-6mm-diameter-shaft.html They reckon it's accurate to one tenth of a degree and they take phone enquiries about their products (subsidiary of Allendale Electronics). The ebay listing is Allendale, robbin so-en so's Edited January 30, 2015 by zidder Link to comment Share on other sites More sharing options...
Perkil8r Posted January 30, 2015 Share Posted January 30, 2015 The ebay listing is Allendale, robbin so-en so's Not really, eBay will be taking 10% off them and paypal another 2%, they've got to make a living somehow. eBay used to proper kill my business with all the fees etc......... rant over You get my point though Link to comment Share on other sites More sharing options...
BAZ Posted January 30, 2015 Share Posted January 30, 2015 I had one, and took it off, it was hopeless. The problem was the shaft had to be dead central to the rotation of the base boards. I found that even a very small deviation from this caused errors to start, and moving the base backwards and forwards would end up with compounded errors over four degrees out. I liked the idea of this, and went back to it a number of times, I had a new bolt made, which was dead accurate, but it still didn't work. It's still kicking about down the shed somewhere. Stick with the vinyl setting circles, they don't cause problems. Link to comment Share on other sites More sharing options...
Doc Posted January 30, 2015 Share Posted January 30, 2015 I agree KISS principle all the way. Link to comment Share on other sites More sharing options...
Perkil8r Posted January 30, 2015 Share Posted January 30, 2015 Batteries won't run out on a setting circle either Link to comment Share on other sites More sharing options...
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