T-Slot Aluminum Design: Slot Size
So I am making good progress on upgrading my 500m X carve with an aluminum t slot bed.
Hopefully this might help anyone considering using the same extrusions.
I used two of the cut at the supplier to 500mm lengths.
They came with a slight warp to them, but that seems to go away when they are bolted down to a 20x20 extrusion.
So I drilled the 20x20 extrusions instead.
Then I used a 10mm endmill to clear out enough space in the slot for the bolt aluminum t slot base plate />I used a center punch and center drill to start the hole to try and ensure good placement, that might have been overkill.
The t-slots in the back and side of the Misumi extrusion are the same as in the 20x20 and makerslide.
So I got some and and placed the nuts in the Misumi slots, and bolted the extrusions down.
I haven't tried putting it on the machine yet.
My biggest concern is the clearance for the V-Wheels.
The Misumi extrusion is 15mm thick, and the stock wasteboard is 12.
Plus aluminum t slot base plate extrusions go all the way to the side.
Going by my tests, I have about 1mm of clearance between the bottom of the v-wheels and the top of the bed.
If that doesn't work, I can aluminum t slot base plate advantage of the fact that the Misumi has the same slot on the side that the 20x20 does, and just bolt the end plates to that.
That would also give me an extra 20mm of Z room if I want to use a vice or something.
Also, even though the 20x20s have removed the warp from the ends of the extrusions, there is still a little sag in the center where it is unsupported.
So I think I might also add a third 20x20 to the middle.
Let me know if anyone has any suggestions, or questions.
Also, be sure to check out John's original thread in for sale.
He might still have a pair of these for sale.
I have two Misumi, aluminum extrusions I used for the bed on my Shapeoko, but now that I'm upgrading to 1000mm, I don't have a need for them.
If your building an X-Carve at 500x500mm, this is drilled and ready to go.
It has a mark on one piece - I got careless when testing an auto tool-hight routine in LinuxCNC and it marked up the bed.
I never thought about doing it that way.
I guess I saw the MDF wasteboard and just drilled the aluminum bed the same way.
Let me know how this works out.
I may aluminum t slot base plate to do my 1000mm aluminum bed the same way.
I'll probably be aluminum t slot base plate the same upgrade soon.
Any ideas for clamping mechanisms?
Obviously the t-slot nuts are an option.
I ordered some t-slot nuts from Aluminum t slot base plate that match the larger slots, and have M6 threads.
Actually I ordered a 'pack' not knowing how big it was, so I think ended up with about 100 of them.
With that I have a couple of small vises I can use and some step clamps.
I'll probably want to pick up some more small step clamps.
Would this also work for a 1000mm machine?
Should I order 4 250mm widths cut to exactly 1000mm?
The bandsaw cut extrusions had a really nice finish on the ends, and where nice and square.
The extrusions are thicker than the wasteboard so you might have a clearance issue with the v wheels.
more info ended up bolting the end plates to the Misumi extrusion instead of the 20x20s to deal with this.
This essentially rotates the machine by 90 degrees, but it also gives you about a centimeter or two of extra room on the Z axis.
Also, plan on adding some additional 20x20 extrusions to support this, and keep it nice and flat.
And order some of the matching T-Slot nuts when you order the extrusions.
If you're looking for something for your 1000x1000, I've kinda ended up with a hybrid table that's a combination of T-Slot, threaded insert and MDF click the following article works for me.
Built the machine on a table from Ikea.
Sheet of ply on top of that it's surprisingly flat.
Screwed the T-Slot at intervals and filled the gaps between with MDF.
Added threaded inserts into the MDF.
If I set them on top of the 2020's, there is only 0.
On the other hand, I can bolt the end plates to the existing holes in the extrusions if I enlarge the plate holes a bit.
I didn't have any problems mounting them as go here />Yes the V-wheels are very close to them, but they never actually rubbed running up and down the axis.
I ended up drilling 8 holes 4 for each extrusion in the 2020 then widened the slot to accept bolts and used tslot nuts in the misumi extrusion to clamp them together.
I think this is the best way, no point in drilling through and possibly marring those brand new extrusions.
I found that I didn't have a bit big enough for making that large hole for the screw head, so I just used M6 x 30mmm screws and will add some rubber feet to the bottom of the 2020s.
Also, I printed up a batch of t-slot nut adapters so that I could use https://sellingonthenet.info/slot/silicone-slotted-spatula.html, M6 nuts to attach the 2020s to the Misumis.
I also had to add an M8 washer to keep the screw from bottoming-out in the Misumi.
Now to figure out how to get this under the x-carve by myself.
Update Well, that was fun!
It's a really tight fit between the y-plates and the new extrusions.
Next up, I need to redo my y-axis dust shields and determine how to adjust my https://sellingonthenet.info/slot/indian-casino-slots.html parts.
The plan was to be 0.
Now I need to measure the depth of those gouges.
Eh, it should have been okay.
Those white dots are 0.
The gouges range from 0.
Update: Just leveled the bed a bit better.
I'm down to 0.
Making a sacrificial aluminum T Slot table on a Tormach PCNC 1100
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