T-Track Hold Downs

discussion of design changes / improvements / suggestions
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Will Winder
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T-Track Hold Downs

Post by Will Winder » Mon Oct 15, 2012 2:59 pm

This is a fairly obvious upgrade. I got two 3' pieces of T-Track from Rockler and 4 hold downs then cut some slots in my ShapeOko's torsion box bed for the track and screwed them in place.

The result is that I can hold stuff in place without screwing it to the MDF spoilboard.

The total cost was about $50 including shipping.

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ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

fito
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Re: T-Track Hold Downs

Post by fito » Mon Oct 15, 2012 3:20 pm

Great idea. I can see it being a boon when working with larger pieces. What do you do if you are milling smaller pieces?
Adolfo Cortés
ShapeOko 649

Will Winder
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Re: T-Track Hold Downs

Post by Will Winder » Mon Oct 15, 2012 3:57 pm

fito wrote:What do you do if you are milling smaller pieces?
I will either just use two clamps on one side, or use a caul clamp. A caul clamp is just a board wide enough for the edge clamps to reach, fancy ones have the ends tapered so that pressure is focused in the middle.
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

fito
Posts: 79
Joined: Thu Aug 09, 2012 5:45 am

Re: T-Track Hold Downs

Post by fito » Mon Oct 15, 2012 4:29 pm

That's so simple I feel silly for having asked. Good work.
Adolfo Cortés
ShapeOko 649

cvoinescu
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Re: T-Track Hold Downs

Post by cvoinescu » Mon Oct 15, 2012 5:35 pm

I like your clamping system and now I something like that myself! I have to find something similar in the UK. If anyone can point me in the right direction, I would greatly appreciate it!
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

levlandau2
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Re: T-Track Hold Downs

Post by levlandau2 » Tue Oct 16, 2012 2:16 am

Looks nice and it seems you are doing some serious aluminum milling.

I am in the process of implementing the same setup with the T-Slots, they were not too cheap with 4' T-slot costing $14. The clamp kits were ~$5 each.

I recessed the T-slots about 1/4" inch below the surface of the MDF so that I can overmill into the MDF but not crash into the T-slots.

It would be nice to develop a method to hold small pieces, maybe some sort of vice?

willo
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Re: T-Track Hold Downs

Post by willo » Tue Oct 16, 2012 2:34 pm

Those look very nice!
Do they seem like they'll hold up over time? Are they steel or aluminum?

Will Winder
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Re: T-Track Hold Downs

Post by Will Winder » Tue Oct 16, 2012 3:07 pm

They are aluminum and pretty soft, but there are screws to hold them in place every 4 inches so I expect it to hold up just fine.
ShapeOko #367: Dual-Y drive, Belt on outside, 1000mm Y-Axis, DW660 Spindle, Nema-23 X/Y motors.

Primary developer on Universal Gcode Sender.

UKJohn
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Joined: Wed Apr 24, 2013 10:33 pm

Re: T-Track Hold Downs

Post by UKJohn » Wed Apr 24, 2013 10:45 pm

cvoinescu wrote:I like your clamping system and now I something like that myself! I have to find something similar in the UK. If anyone can point me in the right direction, I would greatly appreciate it!
Wood Workers Workshop Stock 'T' Track in Oxon.

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