I made a new support allowing the bottom plate of the jig to be positioned approx 25 mm more to the left. This makes the sliding movement when grinding drill bits to be more centered. The advantage is most useful when grinding the big heavy drill bits (15-22 mm). Since the center of the tool weight (drill included) is mostly on the left side I have experienced an unstable movement in the outer left sliding position. The new support decreases this risk.
Janne
Grinder,
This sounds like a useful idea. Could you post a photo?
Ken
I do not know how to insert a picture.
(https://photos-2.dropbox.com/t/2/AACF9IdhZX0LJjh-3VCL5BVL3hzFBh4KACNKmJSouN5Axg/12/582056128/jpeg/32x32/1/_/1/2/_20160812_211219-640x368.JPG/EITDs9cEGG8gAigC/I0FUFGDzH9oKSJKQJQTw3TQZwSfiXv6ceny_26BabtM?dl=0&size=1280x960&size_mode=3)
https://photos-3.dropbox.com/t/2/AADbjnZpEyf9KYFduW3dD9vHaqo4Giw99WweuP8eBUlskA/12/582056128/jpeg/32x32/1/_/1/2/_20160812_210717-640x551.JPG/EITDs9cEGG8gAigC/bC4zbfjmi_0ljxNVmgasWtM7XNAiql4pebFOvK_9Tvs?dl=0&size=1280x960&size_mode=3
(https://photos-3.dropbox.com/t/2/AADbjnZpEyf9KYFduW3dD9vHaqo4Giw99WweuP8eBUlskA/12/582056128/jpeg/32x32/1/_/1/2/_20160812_210717-640x551.JPG/EITDs9cEGG8gAigC/bC4zbfjmi_0ljxNVmgasWtM7XNAiql4pebFOvK_9Tvs?dl=0&size=1280x960&size_mode=3)
(https://photos-3.dropbox.com/t/2/AADbjnZpEyf9KYFduW3dD9vHaqo4Giw99WweuP8eBUlskA/12/582056128/jpeg/32x32/1/_/1/2/_20160812_210717-640x551.JPG/EITDs9cEGG8gAigC/bC4zbfjmi_0ljxNVmgasWtM7XNAiql4pebFOvK_9Tvs?dl=0&size=1280x960&size_mode=3)
Grinder,
I sent you a PM (personal message).
Ken
https://www.dropbox.com/s/pw4vzbp7ifqdtmm/_20160812_210651-640x502.JPG?dl=0
Very sorry. I was away from my main computer until this evening. I have the three photos Janne sent me half loaded onto the forum. I have used photobucket successfully before, but am still clumsy.
I will try to complete tomorrow.
Ken
Janne,
Look back at your earlier post. I inserted your photos there so that you can modify your post by adding text.
Ken
(https://photos-3.dropbox.com/t/2/AAD_MWy11dyeMuf2ypAOyG_43K7bv8hVUBXOxZ0z97OVlQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_211219-640x368.JPG/EMGd0-QEGAYgAigC/I0FUFGDzH9oKSJKQJQTw3TQZwSfiXv6ceny_26BabtM?dl=0&size=800x600&size_mode=3)
Support.
(https://photos-6.dropbox.com/t/2/AAD0ATCx1GYxvHa_hjgwxT603H3n1O70EMyeMsQ0FHREzQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_210651-640x502.JPG/EMGd0-QEGAYgAigC/5RIVcF76KhjPIvfHXPOckl78GBqrOffUND04bvdKjJY?dl=0&size=800x600&size_mode=3)
Drill at the right sliding position.
(https://photos-2.dropbox.com/t/2/AADkIocASfRMRfamYVH_rQvN5d-RGIeO13I05LXXSH0VTQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_210717-640x551.JPG/EMGd0-QEGAYgAigC/bC4zbfjmi_0ljxNVmgasWtM7XNAiql4pebFOvK_9Tvs?dl=0&size=800x600&size_mode=3)
Drill at the left sliding position.
Sliding movement is centered over the tool base plate.
Thanks for good help and advice with the posting of Pictures.
Janne
Janne,
The photos help, but I think your idea still needs some more explanatory text. I believe you have a good idea, however, I still don't understand it.
Most drill users only go up to 1/2" (12mm), however, many also have some Silver and Deming drill bits in larger sizes. (These have 1/2" shanks.) Your improvement might help these users.
Please post some more information.
Ken
The drill jig has a base plate with a sliding function sideways. With original support bar the sliding center is far to the left side (at least on a T4) and with the heavy big drill bits like 18-22 mm the aditiinal tool weight (drill holder and drill) makes the movement a bit unstable at the left side due to a relative shorts guide/slider. With my support bar this sliding movement is centered over the base plate with maximum guiding.
I spend most time grinding big drills, 16-22 used in mechanical work shops.
Janne
Janne,
I will spend some time with my DBS-22 this weekend and try to conceptualize your idea. I have some Silver and Deming bits larger than half inch.
Ken
20+ mm are sizes i like best to grind, heavy strong drill bits that cuts through steel like it is butter.
Janne
Janne, how much time do you need on average to sharpen a 20 mm drill bit?
Jan
During my early years as an installer for the telephone company, Drilling 5/8" (14mm) holes through hard log cabin beams with a dull bit and a hand cranked brace and bit my memories were not so pleasant. Those were definitely pre Tormek days. An auger bit file and a mill file made life easier.
My worst experience was when a bit jammed halfway through the beam.
I comtinued to the brace and bit long after they were abandoned by younger workers, although I was grateful for the heavy duty drill I purchased. I wish I had a Tormek and DBS-22 back then!
Ken
Good question, Jan
Janne, you mentioned a T4. Are you using a T4 for the large bits? ( I have found the T4 a fine performer, although I have not yet used it for drill bits.)
Ken
Jan.
I would say fifteen minutes as an average.
Ken.
Yes, T4 with a special home made USB.
Janne
Well done, Janne!
A 20mm drill bit is a lot of steel to sharpen. You certainly don't need a magnifier to see it! :)
I am pleased to see that the T4 can handle the work.
Keep up the good work.
Ken
Quote from: Ken S on August 19, 2016, 08:36:06 PM
Those were definitely pre Tormek days. An auger bit file and a mill file made life easier.
I wish I had a Tormek and DBS-22 back then!
Ken
Correct me if I am wrong, but I thought an auger bit, was one of the bits the DBS-22, wasn't designed for and couldn't sharpen?! ???
Hello, this is an example of a big heavy drill bit and a "normal" drill bit. :-)
A common 22 mm drill bit with Morse's cone for drill press or support lathe.
A common 8 mm drill bit for hand held maskines.
(https://photos-2.dropbox.com/t/2/AADantoP4kMRJoAvCiMsIJaqDX45vKaEN9Zi0XL3vncANg/12/593937016/jpeg/32x32/1/_/1/2/DSC_0180-640x360.JPG/EMGd0-QEGEEgAigC/MOqqy8RsP5AKpxfx_thUInzN9r5koNATtkCmFsLx3To?size=800x600&size_mode=3)
Janne
SADW,
You are correct. Auger bits are outside the scope of the DBS-22. We used auger bits. We also used conventional Morse bits in many sizes from "drill bits" up to about 3/4" (19mm) and in lengths up to thirty six inches (.9 meter), the most common lengths being 12" (300mm) and 18" (450mm). we carried these in square shank to use in a brace and in round shank for use in electric drills.
Janne,
These bits rarely "cut like butter" >:( A Tormek would have helped that. I carried a mill file, which made my bits sharper than most.
Ken
Quote from: Grinder of Sweden on August 15, 2016, 01:41:04 PM
(https://photos-3.dropbox.com/t/2/AAD_MWy11dyeMuf2ypAOyG_43K7bv8hVUBXOxZ0z97OVlQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_211219-640x368.JPG/EMGd0-QEGAYgAigC/I0FUFGDzH9oKSJKQJQTw3TQZwSfiXv6ceny_26BabtM?dl=0&size=800x600&size_mode=3)
Support.
(https://photos-6.dropbox.com/t/2/AAD0ATCx1GYxvHa_hjgwxT603H3n1O70EMyeMsQ0FHREzQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_210651-640x502.JPG/EMGd0-QEGAYgAigC/5RIVcF76KhjPIvfHXPOckl78GBqrOffUND04bvdKjJY?dl=0&size=800x600&size_mode=3)
Drill at the right sliding position.
(https://photos-2.dropbox.com/t/2/AADkIocASfRMRfamYVH_rQvN5d-RGIeO13I05LXXSH0VTQ/12/593937016/jpeg/32x32/1/_/1/2/_20160812_210717-640x551.JPG/EMGd0-QEGAYgAigC/bC4zbfjmi_0ljxNVmgasWtM7XNAiql4pebFOvK_9Tvs?dl=0&size=800x600&size_mode=3)
Drill at the left sliding position.
Sliding movement is centered over the tool base plate.
Thanks for good help and advice with the posting of Pictures.
Janne
I wish I could see these pictures... :-( I just re-ground and sharpened an entire set of 118-degree bits down to 90-degrees for soft materials. Grinding at 90-degrees presents two problems for me with the DBS-22:
1) If you grind at the recommended bit protrusion, you can't grind using the full width of the wheel as the drill bit holder will come in contact with the left edge of the grinding wheel when you grind the bit using the right side of the wheel. The solution for me was to increase the bit protrusion approximately 3/16-inch.
2) When grinding using the left side of the wheel, the "sled" portion of the jig can become supported only 50% or less by the underlying support. I really wish the support extended left past the horizontal support bar.
I would be interested in seeing how you extended your support more to the left of the machine (past where it butts up against the horizontal support). The only thing that comes to mind for me is to get an extra support plate and cut off an inch or two of the channel and re-drill/re-tap a new hole for the screw knob.
Welcome to the forum, Mr. Biscuit.
Interesting workaround adding the 3/16" to the bit protrusion. Clever and innovative thinking!
I wish I had the Tormek and DBS-22 when I was still working installing and repairing telephone and data circuits. I was one of the last dinosaurs to use a brace and bit.
I used to file my twist bits (1/4"-5/8") with 90° bevels. For the framing lumber I usually drilled, the 90° bevels really helped.
I will check out the extra left side support.
Ken