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#1
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I am a definetly a newby to cnc tables and I purchased this at an auction today. It was a cutter used for cutting blinds and there is some solid engineering gone into this table. It has a vacum bed with stainless mesh. The vacuum table is split into 4 areas with valves controlling vacuum to each. Table size is 6 x 5. Electrically it is a bit of a mess with the controller board gutted and the servo's removed. Encoders are still attached.`The Z axis has a pneumatic 90deg actuator coupled with a plunge actuator. The plan is to cut fabric/carbon fibre/ fibreglass with this machine. I have a friend who is a specialists in lasers so ultimately we will fit one, but initially we will be installing a knife/blade My question is what size x and y servo's should we buy?? Brushed or brushless?? I have been reading many post's and the Geoko seems to be a favored servo controller also. With the breakout box are there types that have solid state contacts out as well as servo controls as I imagine we will need to provide switching for the z axis actuators. Sorry about the picture quality it was extremely dark in the workshop and the slow shutter speed killed me. Thanks Jason |
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#2
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| The photo's I have taken are shocking so I will try and get some better ones tomorrow. The x and y axis are belt driven is there a rule of thumb for gearing ratio's. I ask this as I will have to add a pinion gear to the servo shaft when I order the servo's Thanks Jason |
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#3
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| I have been busy reading lots of posts about servo sizes. The control box has two transformers rate at 35V x 7.1A so I imagine the servo's would have been sized to 245W. The gantry weights about 60lbs at a guess and doing the sums like 60lb x 1000ipm/ 531 = 112W Is this a ball park figure or am I missing some thing?? Jason |
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