Thread: 4' x 4' x 8" Router Build
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18-03-2022 #91
Looking good, I'm going to have to get some steel ordered and make a start or that will be another year passed lol. That's going to be one strong machine with that bracing.
atb mike.
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19-03-2022 #92
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22-03-2022 #93
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23-03-2022 #94
Careful not to get caught up in the "Heavy is good" trap because heavy in the wrong places can be just as bad as underbuilding.?
At least if you are underbuilt you can take lighter cuts and go faster but too heavy and you'll struggle to hit feed rates or suffer from missed steps through motors not being powerful enough to handle the inertia and as we all know it's a lot easier to put weight on and beef up than take it off and a lot cheaper if your too heavy and end up having to replace motors and drives etc.-use common sense, if you lack it, there is no software to help that.
Email: [email protected]
Web site: www.jazzcnc.co.uk
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23-03-2022 #95
Understood Jazz. The 370kg is for the welded (static) base frame, I thought mass here would help with damping? The vast majority of the moving bits are aluminium, I haven’t worked out the total mass of the gantry perhaps that’s something I should do?
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23-03-2022 #96
Yes nice thick tubes etc will certainly help to dampen vibrations and without a doubt, you need to look at the gantry weight and screw sizes you'll be using to help with motor selection, etc. Mass in the gantry certainly helps here as well but this does come at a high cost with motors etc and isn't always needed so it's worth taking the time to work out the weight you'll be moving.
-use common sense, if you lack it, there is no software to help that.
Email: [email protected]
Web site: www.jazzcnc.co.uk
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24-05-2022 #97
Frame nearly fully welded and ready for paint
This thing is a beast!
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01-08-2022 #98
Got the frame as level as possible and poured the epoxy this weekend:
Overall I'm very happy with it, there's only one area I can see that has a slight wave to it, think I either cooked it with the blow torch or hit it too late and the epoxy was too solid to smooth itself out. I don't think it will be a problem, I'll see once I get to fitting the rails and fill / shim if required.
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31-08-2022 #99
Can anyone suggest what size cable chain I’ll need for each axis please? Just about to place an order with BST and was going to add these to the order.
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06-09-2022 #100
Anyone got any recommendations on the safest way to pay BST? Direct through Aliexpress or via Paypal?
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