nobrakese28
Cast Iron
- Joined
- Feb 1, 2015
- Location
- Pico Rivera
I purchased a very nice Taft-Peirce Number 1 several weeks ago, sadly it was damaged in shipment. The seller has now refunded my money and as a bonus I get to keep the machine. Its almost criminal the machine was damaged, as it appears to have been in excellent shape. Upon delivery, it appears the machine maybe in better shape than originally thought it was during inspection at the trucking yard.
Whats damaged:
1. Table ball retainers are missing and damaged (chunk left)
The v-ways appear to be in good shape, no signs of brinnelling. Just trace marks from the balls, don't feel n edge with my finger
2. The ball retainers are damaged, one missing completely. Along with table stop.
This appears to be made from phenolic, but I am tempted to remake them from delrin or teflon. The table stop is a simple rod with tapped ends.
3. Spindle Assembly, one of the edges of the motor casting was polished and worn, maybe from rubbing the wall of the truck-trailer?
I cleaned the spindle, and put my tenths indicator, no movement to the slightest movement, maybe 25 millionths??? I then put some weight on the spindle and it moved 3 tenths, but snapped back to near zero with force removed.
I then powered the spindle motor, it spun like a top. Very quiet and smooth.
4. Machine in general:
Scuffs, the soft line from the Bijur oil can is broken. And the x-axis handle wheel slightly rubs in one spot, could be adjustment.
5. Fine adjust verniers.
I was able to check the z-axis, one adjustment of the tenths scale, drives the z-axis one tenth. There is back-lash when changing direction, but its right on when driven.
6. Y-axis tilt.
With the table removed I placed the best and heaviest parallel (.0001-0002 flatness)I own on the x-axis v-ways. I placed two balls under the parallel on each v-way, and held the parallel in places with magnetic indicator stands.
I set the indicator to zero, and worked the y-axis out towards the operator. I got a total of about .0009" across 5.5 to 6". I was able to get the number down to around .0005 or .0006" by placing about 20 pounds on the table, I think without the weight off the x-axis table and chuck, the y-axis cantilevers a bit. I may also be able to attribute some of that tilt to the protective tins, as I can hear some of the tins rubbing the saddle in the first few inches of trouble. Its also evident the machine should have the saddle removed for cleaning.
Has anyone pulled the saddle on a TP? Any tips?
It seems the machine can be saved, any thoughts?
Thanks,
Marco
Whats damaged:
1. Table ball retainers are missing and damaged (chunk left)
The v-ways appear to be in good shape, no signs of brinnelling. Just trace marks from the balls, don't feel n edge with my finger
2. The ball retainers are damaged, one missing completely. Along with table stop.
This appears to be made from phenolic, but I am tempted to remake them from delrin or teflon. The table stop is a simple rod with tapped ends.
3. Spindle Assembly, one of the edges of the motor casting was polished and worn, maybe from rubbing the wall of the truck-trailer?
I cleaned the spindle, and put my tenths indicator, no movement to the slightest movement, maybe 25 millionths??? I then put some weight on the spindle and it moved 3 tenths, but snapped back to near zero with force removed.
I then powered the spindle motor, it spun like a top. Very quiet and smooth.
4. Machine in general:
Scuffs, the soft line from the Bijur oil can is broken. And the x-axis handle wheel slightly rubs in one spot, could be adjustment.
5. Fine adjust verniers.
I was able to check the z-axis, one adjustment of the tenths scale, drives the z-axis one tenth. There is back-lash when changing direction, but its right on when driven.
6. Y-axis tilt.
With the table removed I placed the best and heaviest parallel (.0001-0002 flatness)I own on the x-axis v-ways. I placed two balls under the parallel on each v-way, and held the parallel in places with magnetic indicator stands.
I set the indicator to zero, and worked the y-axis out towards the operator. I got a total of about .0009" across 5.5 to 6". I was able to get the number down to around .0005 or .0006" by placing about 20 pounds on the table, I think without the weight off the x-axis table and chuck, the y-axis cantilevers a bit. I may also be able to attribute some of that tilt to the protective tins, as I can hear some of the tins rubbing the saddle in the first few inches of trouble. Its also evident the machine should have the saddle removed for cleaning.
Has anyone pulled the saddle on a TP? Any tips?
It seems the machine can be saved, any thoughts?
Thanks,
Marco