Not sure where to go next, lol.
I'm thinking perhaps a servo cam pick up tool, with vacuum. I may make a small controller board, that can act as a middleman, taking PC commands, and sending serial commands to the plotter, and dealing with the new z-axis.
Oh, and if anyone knows a source for the PSU for one of these plotters, I would like to know, since I am using my bench PSU to power it right now.
Interestingly, the PCB itself inside the unit says 9V/28V - not sure why it has a 9.7V/31V PSU!
Try giving Roland a call, I am guessing that if they do still have a power supply it will be expensive. Never dealt with them myself but have read on other forums that their technical department can be very helpful.
Last night I bought a DB9->DB25 serial converter and a LPT cable from Maplin, unfortunately neither worked, the LPT probably because I wasn't configuring it correctly on the PC, and the serial because they use a non-standard wiring. So I made a serial cable with things I had around already and hey presto! So now I have a PC interface working for it, and can move it around. I am planning to buy a dremel 4000 and the dremel drill press/vice thing, and make a part to attach to the carriage that used to hold the electromagnet that put the pen down. Will update as I go - should I make a build thread somewhere else or just use this one?
You would be better off starting a new post for the build log in the correct section, you are likely to get more help that way & it stops it getting messy with different topics.
As for your power supply unit, Roland who make musical instruments & Roland DG the people who make plotters & printers are 2 completely different companies lol Main reason I suggested giving them a call wasn't so much to buy a new power supply but to see if the technical department could help at all with more info on the machine, user manuals, schematics service manuals that sort of thing.
I have the user manual for it, so I can use it to move the shuttle to an absolute or relative X,Y via serial, which is all I need as far as the plotter is concerned, though I may try and get a service manual just to see what's what.
My plan now is to create a Z axis, with a small stepper for component rotation, and a vacuum attachment. Then I'll make a controller board for the stepper, and vacuum valve, with a serial output to the plotter to tell it where to go. This way I can talk to my controller via USB and since inside the plotter there are a few extra mounting points, if I make the board to fit, it should be pretty seamless.
In the immediate future though, I need to get my dremel ordered and return these useless wires to Maplin. :)
Does anyone know of a source for really small drawer sliders or linear slides?
Last edited by 8086; 30-11-2012 at 01:26 PM.
What's the dremmel for ? Are you trying to turn it into a pick & place machine or a router or maybe both ? Dremmels are actually quite heavy or would be for such a machine & the motors being small might not be up to the cutting forces of a router.
If it's just as a pick & place machine picking up small items then if you can't find small enough linear bearings a bit of thin diameter stainless rod & iolite or phosphor bronze bushes might work.
If you want to fit a cutting motor then maybe best to make one rather than use a dremmel, Tenson made one for his machine that he advertised for same which looked to be quite light & using a smaller motor you could probably make it even lighter still.
I am finding various slides around, but they are somewhat expensive, as an example: Buy Linear Slides - Assemblies BSP precision ball slide,35Lx10Wmm IKO Nippon Thompson BSP1035SL online from RS for next day delivery.
Thats the cheapest price I have found yet. I am sure that some time ago I came across some small drawer sliders that would have been perfect...but I can't find them again. :(
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