building cnc for glass cutting
- sherif.taher
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17 Jan 2011 06:31 #6737
by sherif.taher
building cnc for glass cutting was created by sherif.taher
Hi, I'm quite new to building CNC machines and don't have much experience with the hardware available out there
I want to build a CNC setup to cut glass, I saw some examples on youtube that seem to work well scoring glass (). I've done research around and found out some useful tips, I decided to build the setup using zen toolworks 7"x7" DIY kit,
I believe I need at least 4 axis control, x,y,z and a rotary axis to swivel the glass cutter tangentially to the direction of cutting. Can someone recommend suitable driver cards and stepper motors that have worked well with EMC before, I'm looking something basic and cheap
Can the swivel motor be the same as the x,y,z steppers ?
thanks
I want to build a CNC setup to cut glass, I saw some examples on youtube that seem to work well scoring glass (). I've done research around and found out some useful tips, I decided to build the setup using zen toolworks 7"x7" DIY kit,
I believe I need at least 4 axis control, x,y,z and a rotary axis to swivel the glass cutter tangentially to the direction of cutting. Can someone recommend suitable driver cards and stepper motors that have worked well with EMC before, I'm looking something basic and cheap
Can the swivel motor be the same as the x,y,z steppers ?
thanks
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- Rick G
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17 Jan 2011 12:13 #6741
by Rick G
Replied by Rick G on topic Re:building cnc for glass cutting
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- BigJohnT
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17 Jan 2011 12:36 - 17 Jan 2011 12:39 #6742
by BigJohnT
Replied by BigJohnT on topic Re:building cnc for glass cutting
It looks like the zen comes with some nema 17 motors. I used Gecko 203v drives on my plasma. I think the 203v's are over kill for such a tiny thing so you might look at the G251 or G540.
www.geckodrive.com/product.aspx?c=3&i=14469
For the C axis you will need some kind of gear box to take the thrust loads and gear down the stepper. Steppers are not rated for any loads on the shaft other than torque. You might inquire on the zen forum if owners of the zen think it would take the thrust loads of cutting glass... I cut a piece of glass once and as I recall it takes some force but that was a long time ago...
John
www.geckodrive.com/product.aspx?c=3&i=14469
For the C axis you will need some kind of gear box to take the thrust loads and gear down the stepper. Steppers are not rated for any loads on the shaft other than torque. You might inquire on the zen forum if owners of the zen think it would take the thrust loads of cutting glass... I cut a piece of glass once and as I recall it takes some force but that was a long time ago...
John
Last edit: 17 Jan 2011 12:39 by BigJohnT. Reason: opps the pico is not a drive
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- sherif.taher
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19 Jan 2011 06:58 #6769
by sherif.taher
Replied by sherif.taher on topic Re:building cnc for glass cutting
Hi guys, thank you very much for the quick reply, I found the following bit
www.widgetworksunlimited.com/CNC_Diamond...p/cnc-dmnd_engrv.htm
it applies regulated adjustable pressure to the tip and it's advertised to cut glass, seems like the perfect solution that will eliminate the fourth axis requirement, did anyone try it before? any feedback?
most likely I will go with that solution
www.widgetworksunlimited.com/CNC_Diamond...p/cnc-dmnd_engrv.htm
it applies regulated adjustable pressure to the tip and it's advertised to cut glass, seems like the perfect solution that will eliminate the fourth axis requirement, did anyone try it before? any feedback?
most likely I will go with that solution
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- andypugh
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24 Jan 2011 13:55 #6822
by andypugh
Replied by andypugh on topic Re:building cnc for glass cutting
sherif.taher wrote:
Looks like a simple (but expensive) solution.
You could always add the 4th axis if that doesn't work. (Actually, I very much doubt that you need a powered Z axis for your application).
Have you checked eBay? There are some very cheap stepper-motor and driver deals out there. Not the greatest quality, but certainly usable.
cgi.ebay.co.uk/3-Axis-CNC-Router-Stepper...23-PSU-/260713472888
For example.
I have a little bit of experience at creating a kinematics module which automatically sets a head to follow the tangent of the current path. If you decide to go with a wheel-type cutter then ask again here.
(I also have a bit of experience at stained glass work, but had not previously considered putting the two together.)
www.widgetworksunlimited.com/CNC_Diamond...p/cnc-dmnd_engrv.htm
Looks like a simple (but expensive) solution.
You could always add the 4th axis if that doesn't work. (Actually, I very much doubt that you need a powered Z axis for your application).
Have you checked eBay? There are some very cheap stepper-motor and driver deals out there. Not the greatest quality, but certainly usable.
cgi.ebay.co.uk/3-Axis-CNC-Router-Stepper...23-PSU-/260713472888
For example.
I have a little bit of experience at creating a kinematics module which automatically sets a head to follow the tangent of the current path. If you decide to go with a wheel-type cutter then ask again here.
(I also have a bit of experience at stained glass work, but had not previously considered putting the two together.)
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- nemoskull
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29 Jan 2012 13:43 #17254
by nemoskull
Replied by nemoskull on topic Re:building cnc for glass cutting
dont forget some kind of coolant. cutting (grinding) holes in glass is difficult by hand and needs to be kept cool. was a glazer for a number of years.
just sayin'.
just sayin'.
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