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| Mill Drill Igaging Dro Install Notes |
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| 75Plus:
Anthony, I put Igaging scales on my Grizzly 0704 mill drill a few years back. Like you I found the mounting hardware near useless. Here is the way I solved that problem. Hopefully you may find it useful. http://madmodder.net/index.php/topic,6512.msg69127.html#msg69127 Joe |
| ieezitin:
75 Pllus.... saw the link and it is a help.thank you. Notes so far... don't be afraid to drill into your machinery, its just a piece of metal. Use aluminum for all bracket hardware, its easy to machine, tap, and make look nice, your going to make mistakes and aluminum will be more forgiving. make all brackets adjustable, alignment is key, when all brackets are made its a nice feature to tweak them all to set all pieces into place, mill slots or file slots into holes of all hardware to achieve this. Find a datum point for level and square for scales, once this has been achieved all will fall into place. use 60%-70% pilot drill hole size for tapping, you dont need to be binding up to align your brackets, personally this range should be used all the time plus it saves on snapping taps. Here are some pics on where I am with this install. the space i desired between the rail and the reader. this is the close tolerance i have applied to keep it compact. how i made the back bracket.. and this tool is worth its weight in gold......if you dont have one get one. a tapping stand... |
| ieezitin:
Here we are so far. I have noticed some slight bowing to the rails and i am wondering if this will turn out to be an issue only time is going to tell and i figure when i start to use this for the first time i will pay close attention to my measurements I will be getting, i may just apply an indicator and have some reference to what happens. dust and dirt have been playing on my mind and through reading other peoples posts and builds i am going take advice and will cover all the rails with a stainless shields which will have end caps on. my quill face plate has been made and i will be installing that this week end, its elaborate and fancy but should do the job, i have modified my quill too, i have yet to see another approach on this machine like on how i will be doing it piccies will come for sure. alright then my progress so far.... i have kept the tolerances tight. side shot... My spacer to keep the rail parallel, the flat bar is very close with being parallel with the table so i am using this as a datum point.... we shall see making sure there is no interference.... Be back later.. Thanks for looking........... Anthony. |
| ieezitin:
The quill needs looking at. on this machine it has a slight twist or rotation because of slack in the headstock, it annoying to say the least but the Chinese in there wisdom made it the way kay=sera. I eliminated as it much as i could by using the existing depth gage rod hole and slipping in a brass bushing with a nice bearing bushing to suck up the slack, the rail i used it a length of 1/2'' stainless instrument tubing which is dead on size OD so tolerances can be held. even though i just started to do this build i installed the quill rail two months before, its starting to get oil dry marks on it which tells me its still out, very hard problem to over come!!!... the bearing fix in the heastock.. close up of the headstock bushing design.. here is the plate i have made to cover the quill headstock that will allow me to have a bracket directly mounted to the rail to aid the z axis .. thanks for looking.. anthony |
| ieezitin:
well... i only got a little done this weekend, i concentrated on the quill face plate. I made it out of 16 gage stainless which is balls hard to drill trough, im stupid really i always revert to stainless because i like the look and feel but curse every time i have to machine it. this is going to end up as a bracket support for the rail on the quill, all brackets will be made to make sure all is in line with the rail. here is the view.. front view where the brackets will be installed. Not far away now from having a dro system on the mill, im very much looking forward to it.. All the best.. Anthony. |
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