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Old 12-30-2018, 11:59 PM
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milomilo milomilo is offline
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Default Mill Mounting Plate

Started making a mounting plate for the mill today. It is a 1/2" plate and will have several tapped holes with 3/8-16. Also have four 1/2-13 holes to bolt to the table T nuts. Today I ran a 2" facing cutter to get a flat smooth surface on the plate. Came our real well. The hole layout will be tomorrow.
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Old 12-31-2018, 09:52 AM
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Lu47Dan Lu47Dan is offline
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Chris, dye the surface or use a sharpie to lay out the hole pattern, this will give you a visual reference to the hole locations while you are moving location on the plate.
Add a secondary pattern of 1/4" - 20 tapped holes.
Most work I have done on a plate is light machining, so it is handy to have smaller clamping accessories at times.
Once you lay out the 3/8" pattern, drill it before laying out the smaller 1/4" pattern or use a different color sharpie to mark them. Drilling many holes of two seperate sizes can and does get confusing.
Dan.
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Old 12-31-2018, 11:10 AM
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Quote:
Originally Posted by Lu47Dan View Post
Chris, dye the surface or use a sharpie to lay out the hole pattern, this will give you a visual reference to the hole locations while you are moving location on the plate.
Add a secondary pattern of 1/4" - 20 tapped holes.
Most work I have done on a plate is light machining, so it is handy to have smaller clamping accessories at times.
Once you lay out the 3/8" pattern, drill it before laying out the smaller 1/4" pattern or use a different color sharpie to mark them. Drilling many holes of two separate sizes can and does get confusing.
Dan.
Already put on Dykem on the plate. I will only have four 1/2" holes to mount to the table. Will use flat allen head 1/2" screws to attach to the table 1/2" T nuts. I do need to get a set of 3/8" studs and clamps. I could get some 3/8" T nuts, then I would not need the 1/2" holes. Decisions, decisions, decisions.
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Old 01-02-2019, 12:19 PM
threepiece threepiece is offline
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Quote:
Originally Posted by Lu47Dan View Post
Add a secondary pattern of 1/4" - 20 tapped holes.
Most work I have done on a plate is light machining, so it is handy to have smaller clamping accessories at times.
Dan.
I have adapters made from 1/2-13 threaded rod for this. They are simply pieces of rod about 1/2" long with a smaller thread cut in the center.

All of the holes in my fabricating tables are 1/2 -13 thread. When I need a smaller clamping arrangement I thread one or more of these adapters in the holes.
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Old 12-31-2018, 02:16 PM
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Smaller clamps can also be made. I have some as small as 5mm.

With smaller clamping setups, the height should be kept to a minimum, so socket head cap screws or hex head bolts can often be used instead of studs.


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Old 12-31-2018, 03:08 PM
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Smaller clamps can also be made. I have some as small as 5mm.

With smaller clamping setups, the height should be kept to a minimum, so socket head cap screws or hex head bolts can often be used instead of studs.


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Cap screws! Another good idea. Thanks.
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Old 12-31-2018, 05:17 PM
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Just make sure to use decent washers. I used to have sources for heavy (williams was what we called them) washers that worked really well for clamping applications.


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Old 12-31-2018, 05:24 PM
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Originally Posted by greywynd View Post
Just make sure to use decent washers. I used to have sources for heavy (williams was what we called them) washers that worked really well for clamping applications.


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I have lots of good washers.
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Old 01-01-2019, 09:28 PM
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Too cold for shop work yesterday. Did get the four 1/2" holes laid out and drilled today. I will get the countersinks done tomorrow. Probably lay out the 3/8" tapped holes too.
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Old 01-02-2019, 07:26 AM
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Quote:
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Too cold for shop work yesterday. Did get the four 1/2" holes laid out and drilled today. I will get the countersinks done tomorrow. Probably lay out the 3/8" tapped holes too.
Well Chris... I cant wait to see the final product, well, I mean I have to wait but I am, looking forward to seeing it once you finish the mounting plate
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