Fitting an encoder on a Tormach 1100
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30 Apr 2020 17:52 #166232
by snowgoer540
Sorry about that, I edited the original post to fix the machine Make and Model and make more clear. Tormach 1100 Series 3. I cant remember what series you said you had (if you did). But I would love the files! That would be incredibly appreciated. I have a 7i85S that I was going to sell, but then realized I could use to make this upgrade. Rigid tapping is the dream!
Replied by snowgoer540 on topic Fitting an encoder on a Tormach 1100
Sorry to resurrect a really old thread.
I am looking to do just this with my 110S3. I was wondering if it was still working great, and also if you could guide me as to what encoder you used, gears, etc. Grateful for any information you can send my way. Obviously there is a ton here already which is awesome!
Thanks!
-Greg
What is the 110S3 as I don't recognise it? If it is similar to mine I can give you my custom files for the encoder and mpg's I also have the dxf files for the encoder mounts and the pulleys.
I used a 7i85s for the encoder inputs. the high speed encoder was from china about £15
I copied the design from this vid
Sorry about that, I edited the original post to fix the machine Make and Model and make more clear. Tormach 1100 Series 3. I cant remember what series you said you had (if you did). But I would love the files! That would be incredibly appreciated. I have a 7i85S that I was going to sell, but then realized I could use to make this upgrade. Rigid tapping is the dream!
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30 Apr 2020 18:14 #166235
by Clive S
Replied by Clive S on topic Fitting an encoder on a Tormach 1100
Ok Mine is a 1100-3 as well.
I will get some stuff together tomorrow and see what I can find. What version of PP are you on.
some pics the 7i85s photos.app.goo.gl/TugTAwGqZEKorRfMA
All the mpg's and encoder are connected to the 7i85s ( A big thanks to Peter (PWM) and AndyPugh that were a big help for me as a none machinist to be able to do it.
I will get some stuff together tomorrow and see what I can find. What version of PP are you on.
some pics the 7i85s photos.app.goo.gl/TugTAwGqZEKorRfMA
All the mpg's and encoder are connected to the 7i85s ( A big thanks to Peter (PWM) and AndyPugh that were a big help for me as a none machinist to be able to do it.
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30 Apr 2020 18:26 #166238
by snowgoer540
I'm on the newest version.
Man, that's so cool! Did you do the spindle speed to encoder 1:1?
Also, were you able to change PP to use the encoder to do spindle speed? I find that it's inherently inaccurate as it stands, and in addition to rigid tapping, would be a welcomed upgrade. But maybe making the mods to the hal file does this by default?
Replied by snowgoer540 on topic Fitting an encoder on a Tormach 1100
Ok Mine is a 1100-3 as well.
I will get some stuff together tomorrow and see what I can find. What version of PP are you on.
some pics the 7i85s photos.app.goo.gl/TugTAwGqZEKorRfMA
All the mpg's and encoder are connected to the 7i85s ( A big thanks to Peter (PWM) and AndyPugh that were a big help for me as a none machinist to be able to do it.
I'm on the newest version.
Man, that's so cool! Did you do the spindle speed to encoder 1:1?
Also, were you able to change PP to use the encoder to do spindle speed? I find that it's inherently inaccurate as it stands, and in addition to rigid tapping, would be a welcomed upgrade. But maybe making the mods to the hal file does this by default?
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30 Apr 2020 18:37 #166240
by Clive S
The encoder has to be 1:1 and syncs the spindle to the Z axis. So if the spindle slows down the z will slow as well and so keep in sync.
I have made a crib sheet of where to amend the hal file. I will get it together tomorrow
Replied by Clive S on topic Fitting an encoder on a Tormach 1100
Ok Mine is a 1100-3 as well.
I will get some stuff together tomorrow and see what I can find. What version of PP are you on.
some pics the 7i85s photos.app.goo.gl/TugTAwGqZEKorRfMA
All the mpg's and encoder are connected to the 7i85s ( A big thanks to Peter (PWM) and AndyPugh that were a big help for me as a none machinist to be able to do it.
I'm on the newest version.
Man, that's so cool! Did you do the spindle speed to encoder 1:1?
Also, were you able to change PP to use the encoder to do spindle speed? I find that it's inherently inaccurate as it stands, and in addition to rigid tapping, would be a welcomed upgrade. But maybe making the mods to the hal file does this by default?
The encoder has to be 1:1 and syncs the spindle to the Z axis. So if the spindle slows down the z will slow as well and so keep in sync.
I have made a crib sheet of where to amend the hal file. I will get it together tomorrow
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30 Apr 2020 19:21 - 30 Apr 2020 19:29 #166243
by snowgoer540
I remember when I started down this path the first time (about a year ago before ADD kicked in), I had a hard time finding an encoder that would do 5140 rpm.
I’m stoked on this. I may do the jog MPGs too. They look so sweet.
Replied by snowgoer540 on topic Fitting an encoder on a Tormach 1100
Ok Mine is a 1100-3 as well.
I will get some stuff together tomorrow and see what I can find. What version of PP are you on.
some pics the 7i85s photos.app.goo.gl/TugTAwGqZEKorRfMA
All the mpg's and encoder are connected to the 7i85s ( A big thanks to Peter (PWM) and AndyPugh that were a big help for me as a none machinist to be able to do it.
I'm on the newest version.
Man, that's so cool! Did you do the spindle speed to encoder 1:1?
Also, were you able to change PP to use the encoder to do spindle speed? I find that it's inherently inaccurate as it stands, and in addition to rigid tapping, would be a welcomed upgrade. But maybe making the mods to the hal file does this by default?
The encoder has to be 1:1 and syncs the spindle to the Z axis. So if the spindle slows down the z will slow as well and so keep in sync.
I have made a crib sheet of where to amend the hal file. I will get it together tomorrow
I remember when I started down this path the first time (about a year ago before ADD kicked in), I had a hard time finding an encoder that would do 5140 rpm.
I’m stoked on this. I may do the jog MPGs too. They look so sweet.
Last edit: 30 Apr 2020 19:29 by snowgoer540.
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01 May 2020 12:30 #166309
by Clive S
Replied by Clive S on topic Fitting an encoder on a Tormach 1100
Ok these are the mpg's it.aliexpress.com/item/32815460713.html?...1.0.0.27424c4durIgWw
and the encoder it.aliexpress.com/item/32815460713.html?...1.0.0.27424c4durIgWw
make sure it has A+B+Z mine is single ended but differential would be nice.
.
I have put some dxf files in the zip file. on the encoder mount I used a bearing on the shaft in the mount to take any load of the encoder
The 28 tooth gear in did on the mill with a recess underneath with 6 magnets and 3 grub screws to hold it in position I also put a flange on the encoder gear as well to help to keep the belt in place.
.
I generally take the belt off when not being used.
.
There is a bit of test code here that worked for me: forum.linuxcnc.org/pathpilot/34005-fitti...1100?start=50#109484
.
I used a connector off the mesa 5i25 port similar to this www.ebay.co.uk/itm/IDE26-To-DB25-Female-...d:g:8PAAAOSwj3Nee2J0
Then used a 25pin cable to the control box where the 7i85s is mounted shown in a previous pic.
You will need the bit file 5i25_t2_7i85s.bit that is in the Zip file with ini and hal files
.
.
and the encoder it.aliexpress.com/item/32815460713.html?...1.0.0.27424c4durIgWw
make sure it has A+B+Z mine is single ended but differential would be nice.
.
I have put some dxf files in the zip file. on the encoder mount I used a bearing on the shaft in the mount to take any load of the encoder
The 28 tooth gear in did on the mill with a recess underneath with 6 magnets and 3 grub screws to hold it in position I also put a flange on the encoder gear as well to help to keep the belt in place.
.
I generally take the belt off when not being used.
.
There is a bit of test code here that worked for me: forum.linuxcnc.org/pathpilot/34005-fitti...1100?start=50#109484
.
I used a connector off the mesa 5i25 port similar to this www.ebay.co.uk/itm/IDE26-To-DB25-Female-...d:g:8PAAAOSwj3Nee2J0
Then used a 25pin cable to the control box where the 7i85s is mounted shown in a previous pic.
You will need the bit file 5i25_t2_7i85s.bit that is in the Zip file with ini and hal files
.
.
To update Tormach with a new tgp file ie 2.4.3
First copy old config folder to desktop
then update to the new file and make sure the software runs.
Log files for errors in here /home/operator/gcode/logfiles
Then follow below:-
Put this bit file 5i25_t2_7i85s.bit
in Mesa /home/operator/tmc/mesa
Copy this to tormach_mill_base.ini file
Replace the original config line with this:-
"config= num_encoders=4 num_pwmgens=1 num_3pwmgens=0 num_stepgens=5 "
BITFILE0=mesa/5i25_t2_7i85s.bit
Copy custom_encoder_ilowpass.hal to v2.4.3\configs\tormach_mill
In the tormach_mill_base.ini under {HAL] add this:-
HALFILE = custom_encoder_ilowpass.hal
From the tormach_mill_mesa.hal file comment out as below
########################################################################
# DPLL configuration
#####setp hm2_[HOSTMOT2](BOARD).0.dpll.01.timer-us [HOSTMOT2](DPLL_TIMER_US)
# default is -1 which means don't use the DPLL timer and simply sample on read()
# set to 1 for Ethernet boards to use DPLL timer 1 and sample 100 micro seconds
# before the nominal servo thread read() time
#####setp hm2_[HOSTMOT2](BOARD).0.stepgen.timer-number [HOSTMOT2](DPLL_TIMER_NUMBER)
And
######net spindle-rps tormachspindle.speed-out-rps motion.spindle-speed-in
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01 May 2020 13:48 #166315
by snowgoer540
Thank you so much Clive, I really appreciate it!! I owe you a beer!
I saw earlier in this thread that you went form a 2000ppr encoder to 1000ppr. Any reason for that?
Replied by snowgoer540 on topic Fitting an encoder on a Tormach 1100
Ok these are the mpg's it.aliexpress.com/item/32815460713.html?...1.0.0.27424c4durIgWw
and the encoder it.aliexpress.com/item/32815460713.html?...1.0.0.27424c4durIgWw
make sure it has A+B+Z mine is single ended but differential would be nice.
.
I have put some dxf files in the zip file. on the encoder mount I used a bearing on the shaft in the mount to take any load of the encoder
The 28 tooth gear in did on the mill with a recess underneath with 6 magnets and 3 grub screws to hold it in position I also put a flange on the encoder gear as well to help to keep the belt in place.
.
I generally take the belt off when not being used.
.
There is a bit of test code here that worked for me: forum.linuxcnc.org/pathpilot/34005-fitti...1100?start=50#109484
.
I used a connector off the mesa 5i25 port similar to this www.ebay.co.uk/itm/IDE26-To-DB25-Female-...d:g:8PAAAOSwj3Nee2J0
Then used a 25pin cable to the control box where the 7i85s is mounted shown in a previous pic.
You will need the bit file 5i25_t2_7i85s.bit that is in the Zip file with ini and hal files
.
.To update Tormach with a new tgp file ie 2.4.3 First copy old config folder to desktop then update to the new file and make sure the software runs. Log files for errors in here /home/operator/gcode/logfiles Then follow below:- Put this bit file 5i25_t2_7i85s.bit in Mesa /home/operator/tmc/mesa Copy this to tormach_mill_base.ini file Replace the original config line with this:- "config= num_encoders=4 num_pwmgens=1 num_3pwmgens=0 num_stepgens=5 " BITFILE0=mesa/5i25_t2_7i85s.bit Copy custom_encoder_ilowpass.hal to v2.4.3\configs\tormach_mill In the tormach_mill_base.ini under {HAL] add this:- HALFILE = custom_encoder_ilowpass.hal From the tormach_mill_mesa.hal file comment out as below ######################################################################## # DPLL configuration #####setp hm2_[HOSTMOT2](BOARD).0.dpll.01.timer-us [HOSTMOT2](DPLL_TIMER_US) # default is -1 which means don't use the DPLL timer and simply sample on read() # set to 1 for Ethernet boards to use DPLL timer 1 and sample 100 micro seconds # before the nominal servo thread read() time #####setp hm2_[HOSTMOT2](BOARD).0.stepgen.timer-number [HOSTMOT2](DPLL_TIMER_NUMBER) And ######net spindle-rps tormachspindle.speed-out-rps motion.spindle-speed-in
Thank you so much Clive, I really appreciate it!! I owe you a beer!
I saw earlier in this thread that you went form a 2000ppr encoder to 1000ppr. Any reason for that?
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01 May 2020 14:09 #166323
by Clive S
Replied by Clive S on topic Fitting an encoder on a Tormach 1100
Its some time ago but most likely the speed I needed one that could do 5000 revs but thinking about it. the one I used was single ended.
I don't think it make any difference. Just change the scale in the custom_encoder_ilowpass.hal
I don't think it make any difference. Just change the scale in the custom_encoder_ilowpass.hal
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01 May 2020 16:23 #166338
by snowgoer540
Good deal, easy enough..
Do you happen to have step files for the parts? Fusion opens the DXFs kinda wonky.
Replied by snowgoer540 on topic Fitting an encoder on a Tormach 1100
Its some time ago but most likely the speed I needed one that could do 5000 revs but thinking about it. the one I used was single ended.
I don't think it make any difference. Just change the scale in the custom_encoder_ilowpass.hal
Good deal, easy enough..
Do you happen to have step files for the parts? Fusion opens the DXFs kinda wonky.
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01 May 2020 17:51 #166347
by Clive S
No sorry, I did them in Acad and put them into Vcarve for the cam. and exported them out as DXF.
They open fine for me in Fusion "encoder upstand base"
Replied by Clive S on topic Fitting an encoder on a Tormach 1100
Do you happen to have step files for the parts? Fusion opens the DXFs kinda wonky.
No sorry, I did them in Acad and put them into Vcarve for the cam. and exported them out as DXF.
They open fine for me in Fusion "encoder upstand base"
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