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Leveling the Table
hi people,
What do you use to level the sucrifice table and make it flat?
Thanks
secure your sacrifice plate to the machinebed
create a pocket square in the max size for your machine.
use a flat bit of 6mm or larger if you can and set a depth of 0.5mm
note. beware that the spindle does not run into the Y-ax sides
now let it go, after a while you have a flat board, and if 0.5mm is not deep enough run it once more
have fun
SC 1/420 + Gantry extension, Kress 1050 FME-P, NeJe 20W Laser, WinPC-NC USB v4.00, Vectric Aspire 9, SolidWorks 2021
Thank you... an example of the bit? a link or something?
A 6mm flat bit needs another collet? I have MM1000 with 3.175 colet.
For the best result you should buy a 6 mm collet, however you can buy a 6mm flat head bit with a 3,17mm shaft;
remind that you have to reduce the feed speed otherwise there is to much tension on the bit-shaft and than it breaks or will bent.
these are not the best you can buy but will do the job.
If you want quality bits go to : https://www.sorotec.de/shop/Zerspanungswerkzeuge/sorotec-werkzeuge/
SC 1/420 + Gantry extension, Kress 1050 FME-P, NeJe 20W Laser, WinPC-NC USB v4.00, Vectric Aspire 9, SolidWorks 2021
I used a standard 1/4" HSS endmill with complete success. Just keep the revs high (> 12000rpm) and the depth of cut to about 0..25mm. A cutting speed of 600mm/min seemed appropriate, though it may well have been possible to increase this without any ill effects.
Peter
SC 420/2, Industrial VFD spindle from StoneyCNC
UC100 + UCCNC
Cut2D, Autosketch10, Draftsight, Eagle 9.5.1
There is no problem, however simple, that cannot be made more complicated by thinking about it.
![Martin Martin](http://stepcraft-systems.com/wp-content/uploads/wpforo/avatars/stachel_37315.jpg)
But the plastic table is very poor material.
You can try to level it, but when you press with your finger just a little at vertical direction it will sag 1/10 or more.
From my point of view this is crap.
I would get a suitable table like this one:
https://www.sorotec.de/shop/CNC-Portalfraesen/StepCraft-Portalfraesen-mit-Sorotec-Service/StepCraft-Portalfraesen-mit-Sorotec-Service-347/T-Nutenplatte-fuer-Stepcraft/
Gruß Martin
Stepcraft 420 V2 justierbare Spindelmuttern 1/16-Schritt-Betrieb
EstlCam + Arduino Nano
WinNC Vollversion
I should have pointed out that I have an aluminium T slot table, and the MDF spoil board is screwed to this by countersunk M6 screws and nuts. After machining, a dial gauge check shows a variance of less than 1/10mm over the whole surface.
My vacuum fixture for PCB milling is better than 50 microns over an 8" x 6" area. (Sorry for mixed units - I am comfortable with and use both Imperial and metric measurements, and swap from one to the other indiscriminately).
Peter
SC 420/2, Industrial VFD spindle from StoneyCNC
UC100 + UCCNC
Cut2D, Autosketch10, Draftsight, Eagle 9.5.1
There is no problem, however simple, that cannot be made more complicated by thinking about it.
The BlackEdition i have is already equiped with an aluminium table. I am talking about the MDF i want to pout over it.
Peterg1000 since you have the same mdf setup can you take a picture of the sacrificial table? Do you cut a table with a specific desing for allowing the under t-slot to be usable ?
![Martin Martin](http://stepcraft-systems.com/wp-content/uploads/wpforo/avatars/stachel_37315.jpg)
Ok, thanks.
That makes a lot of sense !! B)
I also use an aluminium table + 19mm MDF screwed on.
Next will try to get the MDF calibrated here at carpenter's workshop.
They have a wide belt finishing machine (wide belt grinding machine, don't know the correct term);
hope this will do the job ...
Gruß Martin
Stepcraft 420 V2 justierbare Spindelmuttern 1/16-Schritt-Betrieb
EstlCam + Arduino Nano
WinNC Vollversion
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