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Ronie
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by Ronie » Sun Dec 10, 2017 2:26 am
I am Ronie, an amateur knife maker trying to build my own belt grinder.
Thanks for sharing the info.
I would like to know if the pieces in the CAD project are in actual size and I could to email the dxf file to order the laser cutting without any corrections.
Sorry for my bad english.

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admin
- Site Admin
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by admin » Mon Dec 11, 2017 11:23 am
Hi Ronie,
I was able to send the files by email to the fabricator and they had no issues with the sizing. Of course if they say the grinder is going to be 3 cm x 1.5 cm that should be an alarm bell. LOL
In Brazil do you have IEC motor or NEMA motor? There is a link to the IEC/metric files.
viewtopic.php?f=11&t=44
Regards,
Dan
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Ronie
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- Joined: Sat Dec 09, 2017 5:19 pm
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by Ronie » Mon Dec 11, 2017 10:41 pm
The Brazilian standard requires the IEC, but I have also found the NEMA standard for sale on some sites.
Thanks for share the metric file.
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Ronie
- Posts: 8
- Joined: Sat Dec 09, 2017 5:19 pm
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by Ronie » Wed Dec 13, 2017 3:12 pm
Hi guys. I sent the file "375 cut w spacers.dxf" to a laser cutting company in my city, but the engineering department refused it and demanded the drawings with the actual measurements.
They claim to be unsure if the pieces will come out in the correct size if they use the file without any reference.
Has anyone ever had problems like this?
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Ronie
- Posts: 8
- Joined: Sat Dec 09, 2017 5:19 pm
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by Ronie » Fri Dec 15, 2017 9:30 am
admin wrote: ↑Mon Dec 11, 2017 11:23 am
Hi Ronie,
I was able to send the files by email to the fabricator and they had no issues with the sizing. Of course if they say the grinder is going to be 3 cm x 1.5 cm that should be an alarm bell. LOL
In Brazil do you have IEC motor or NEMA motor? There is a link to the IEC/metric files.
viewtopic.php?f=11&t=44
Regards,
Dan
Hello. You should have read my report on the problem I had with the laser cutting company in my area. I've been thinking that if all those parts are drawn with the correct proportions, you just know the size of one of them so that everything is cut correctly, right? If yes, could you tell me the exact cut diameter of the NEMA motor's docking circle? I believe that with this I will not have any problems.
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admin
- Site Admin
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by admin » Fri Dec 15, 2017 10:09 am
According to my 11-4 and 10-3 files, the NEMA motor face opening is 4.55".

- motor opening cut out.
- NEMA_56_mount_opening.png (8.34 KiB) Viewed 11147 times
Dan
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Ronie
- Posts: 8
- Joined: Sat Dec 09, 2017 5:19 pm
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by Ronie » Fri Dec 15, 2017 10:50 am
Thank you, Bro!
I'll try again.
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fernandomaia
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- Joined: Mon Jul 09, 2018 11:09 am
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by fernandomaia » Tue Jul 10, 2018 2:14 pm
Hello Man! I'm from Brazil too. Floripa.
Afinal, conseguiu fazer?
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